Function at 0x10087f9d
Capabilities:
Encrypt data using speck

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x38
push ebx
xor ebx, ebx
test byte [ebp + 0x10], 0x80
push esi
push edi
mov esi, eax
mov dword [ebp - 0x24], ebx
mov dword [ebp - 0x28], ebx
mov byte [ebp - 2], bl
mov dword [ebp - 0x38], 0xc
mov dword [ebp - 0x34], ebx
je 0x10087fcc
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x10087fd6
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.1008b00b
test eax, eax
pop ecx
je 0x10087ff1
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.10074357
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.100795b3
test eax, eax
pop ecx
je 0x1008800c
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.10074357
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x10088029
test ecx, 0x74000
jne 0x10088025
cmp dword [ebp - 0x24], eax
je 0x10088029
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocStringLen
je 0x10088083
dec eax
je 0x1008806d
dec eax
je 0x10088068
call fcn.10076fc3
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.10076fb0
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.10074453
add esp, 0x14
jmp 0x10088636
mov dword [ebp - 8], edx
jmp 0x10088086
test cl, 8
je 0x1008807a
test ecx, 0x70000
jne 0x10088068
mov dword [ebp - 8], 0x40000000
jmp 0x10088086
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x100880c7
sub eax, ecx
je 0x100880be
sub eax, ecx
je 0x100880b5
sub eax, ecx
je 0x100880ac
sub eax, 0x40
jne 0x10088042
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x100880ca
mov dword [ebp - 0x10], 3
jmp 0x100880ca
mov dword [ebp - 0x10], 2
jmp 0x100880ca
mov dword [ebp - 0x10], 1
jmp 0x100880ca
mov dword [ebp - 0x10], ebx
mov eax, dword [ebp + 0x10]
mov edx, 0x700
and eax, edx
mov ecx, 0x400
cmp eax, ecx
mov edi, 0x100
jg 0x1008811d
je 0x10088114
cmp eax, ebx
je 0x10088114
cmp eax, edi
je 0x1008810b
cmp eax, 0x200
je 0x10088190
cmp eax, 0x300
jne 0x10088042
mov dword [ebp - 0x14], 2
jmp 0x1008813a
mov dword [ebp - 0x14], 4
jmp 0x1008813a
mov dword [ebp - 0x14], 3
jmp 0x1008813a
cmp eax, 0x500
je 0x10088133
cmp eax, 0x600
je 0x10088190
cmp eax, edx
jne 0x10088042
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], pe_nt_image_headers32
je 0x1008815e
mov ecx, dword [0x100c43dc]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x1008815e
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x1008817a
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x1008817a
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x10088183
or dword [ebp - 0xc], edi
test al, 0x20
je 0x10088199
or dword [ebp - 0xc], 0x8000000
jmp 0x100881a4
mov dword [ebp - 0x14], 5
jmp 0x1008813a
test al, 0x10
je 0x100881a4
or dword [ebp - 0xc], 0x10000000
call fcn.10078b6d
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x100881ca
call fcn.10076fc3
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.10076fb0
mov dword [eax], 0x18
jmp 0x10088258
mov eax, dword [ebp + 8]
mov edi, dword [sym.imp.KERNEL32.dll_CreateFileW]
push ebx
push dword [ebp - 0xc]
mov dword [eax], 1
push dword [ebp - 0x14]
lea eax, [ebp - 0x38]
push eax
push dword [ebp - 0x10]
push dword [ebp - 8]
push dword [ebp + 0xc]
call edi
cmp eax, 0xffffffff
mov dword [ebp - 0x1c], eax
jne 0x10088264
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x10088230
test byte [ebp + 0x10], 1
je 0x10088230
and dword [ebp - 8], 0x7fffffff
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
push dword [ebp - 0x14]
push eax
push dword [ebp - 0x10]
push dword [ebp - 8]
push dword [ebp + 0xc]
call edi
cmp eax, 0xffffffff
mov dword [ebp - 0x1c], eax
jne 0x10088264
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x100c4f20]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.10076fd6
pop ecx
call fcn.10076fb0
mov eax, dword [eax]
jmp 0x100886f2
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x100882b5
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x100c4f20]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.10076fd6
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x10088258
call fcn.10076fb0
mov dword [eax], 0xd
jmp 0x10088258
cmp eax, 2
jne 0x100882c0
or byte [ebp - 1], 0x40
jmp 0x100882c9
cmp eax, 3
jne 0x100882c9
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.1007893c
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x100c4f20]
pop ecx
pop ecx
mov cl, byte [ebp - 1]
or cl, 1
mov byte [edx + eax + 4], cl
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x100c4f20]
lea eax, [edx + eax + 0x24]
and byte [eax], 0x80
mov byte [ebp - 3], cl
and byte [ebp - 3], 0x48
mov byte [ebp - 1], cl
jne 0x1008839f
test cl, 0x80
je 0x1008846f
test byte [ebp + 0x10], 2
je 0x1008839f
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.100825a3
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x1008835d
call fcn.10076fc3
cmp dword [eax], 0x83
je 0x1008839f
push dword [esi]
call fcn.10081a97
jmp 0x10088257
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.10081ee5
add esp, 0xc
test eax, eax
jne 0x1008838f
cmp word [ebp - 0x2c], 0x1a
jne 0x1008838f
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.1008ad9b
add esp, 0xc
cmp eax, edi
je 0x10088351
push ebx
push ebx
push dword [esi]
call fcn.100825a3
add esp, 0xc
cmp eax, edi
je 0x10088351
test byte [ebp - 1], 0x80
je 0x1008846f
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x100883c7
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x100883c4
or dword [ebp + 0x10], edi
jmp 0x100883c7
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x10088414
cmp eax, 0x10000
je 0x10088400
cmp eax, 0x14000
je 0x10088400
cmp eax, 0x20000
je 0x1008840e
cmp eax, 0x24000
je 0x1008840e
cmp eax, 0x40000
je 0x100883fa
cmp eax, 0x44000
jne 0x10088417
mov byte [ebp - 2], 1
jmp 0x10088417
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x10088417
mov byte [ebp - 2], 2
jmp 0x10088417
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x1008846f
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x1008846f
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x100885c9
cmp eax, 0x80000000
je 0x10088590
cmp eax, ecx
jne 0x1008846f
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x1008846f
cmp eax, 2
jbe 0x10088671
cmp eax, 4
jbe 0x10088562
cmp eax, 5
je 0x10088671
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100c4f20]
lea eax, [ecx + eax + 0x24]
mov cl, byte [eax]
xor cl, byte [ebp - 2]
and cl, 0x7f
xor byte [eax], cl
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100c4f20]
lea eax, [ecx + eax + 0x24]
mov ecx, dword [ebp + 0x10]
mov dl, byte [eax]
shr ecx, 0x10
shl cl, 7
and dl, 0x7f
or cl, dl
cmp byte [ebp - 3], bl
mov byte [eax], cl
jne 0x100884e1
test byte [ebp + 0x10], 8
je 0x100884e1
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100c4f20]
lea eax, [ecx + eax + 4]
or byte [eax], 0x20
mov edi, dword [ebp - 8]
mov eax, 0xc0000000
mov ecx, edi
and ecx, eax
cmp ecx, eax
jne 0x100886f0
test byte [ebp + 0x10], 1
je 0x100886f0
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
push 3
push eax
push dword [ebp - 0x10]
and edi, 0x7fffffff
push edi
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileW]
cmp eax, 0xffffffff
jne 0x100886d9
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.10076fd6
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100c4f20]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.100789b9
pop ecx
jmp 0x10088257
push 2
push ebx
push ebx
push dword [esi]
call fcn.10085d62
add esp, 0x10
or eax, edx
je 0x10088671
push ebx
push ebx
push ebx
push dword [esi]
call fcn.10085d62
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x10088351
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.10081ee5
add esp, 0xc
cmp eax, 0xffffffff
je 0x10088351
cmp eax, 2
je 0x10088615
cmp eax, 3
jne 0x10088663
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x10088615
mov byte [ebp - 2], 1
jmp 0x1008846f
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x1008846f
cmp eax, 2
jbe 0x10088671
cmp eax, 4
ja 0x10088466
push 2
push ebx
push ebx
push dword [esi]
call fcn.10085d62
add esp, 0x10
or eax, edx
je 0x10088671
push ebx
push ebx
push ebx
push dword [esi]
call fcn.10085d62
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x1008846f
jmp 0x10088351
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x1008863d
push dword [esi]
call fcn.10081a97
pop ecx
call fcn.10076fb0
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x100886f2
cmp eax, 0xfeff
jne 0x10088663
push ebx
push 2
push dword [esi]
call fcn.100825a3
add esp, 0xc
cmp eax, 0xffffffff
je 0x10088351
mov byte [ebp - 2], 2
jmp 0x1008846f
push ebx
push ebx
push dword [esi]
call fcn.100825a3
add esp, 0xc
jmp 0x10088607
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x10088691
dec eax
jne 0x1008846f
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x1008869f
mov dword [ebp - 0x18], 0xbfbbef
mov dword [ebp - 0x14], 3
mov eax, dword [ebp - 0x14]
sub eax, edi
push eax
lea eax, [ebp + edi - 0x18]
push eax
push dword [esi]
call fcn.10083e66
add esp, 0xc
cmp eax, 0xffffffff
je 0x100886c5
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x1008869f
jmp 0x1008846f
push dword [esi]
call fcn.10081a97
pop ecx
call fcn.10076fb0
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x100886f2
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100c4f20]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret