Function at 0x42183e
Capabilities:
Encrypt data using speck

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x34
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 - 0x34], 0xc
mov dword [ebp - 0x30], ebx
je 0x42186d
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x421877
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00424667
test eax, eax
pop ecx
je 0x421892
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0040fdd2
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0041550d
test eax, eax
pop ecx
je 0x4218ad
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0040fdd2
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4218ca
test ecx, 0x74000
jne 0x4218c6
cmp dword [ebp - 0x24], eax
je 0x4218ca
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, 0x80000000
je 0x421924
dec eax
je 0x42190e
dec eax
je 0x421909
call fcn.00412eb2
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00412e9f
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0040fece
add esp, 0x14
jmp 0x421ed6
mov dword [ebp - 8], edx
jmp 0x421927
test cl, 8
je 0x42191b
test ecx, 0x70000
jne 0x421909
mov dword [ebp - 8], 0x40000000
jmp 0x421927
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x421968
sub eax, ecx
je 0x42195f
sub eax, ecx
je 0x421956
sub eax, ecx
je 0x42194d
sub eax, 0x40
jne 0x4218e3
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x42196b
mov dword [ebp - 0x10], 3
jmp 0x42196b
mov dword [ebp - 0x10], 2
jmp 0x42196b
mov dword [ebp - 0x10], 1
jmp 0x42196b
mov dword [ebp - 0x10], ebx
mov eax, dword [ebp + 0x10]
mov edx, 0x700
and eax, edx
mov ecx, 0x400
cmp eax, ecx
mov edi, pe_nt_image_headers32
jg 0x4219be
je 0x4219b5
cmp eax, ebx
je 0x4219b5
cmp eax, edi
je 0x4219ac
cmp eax, 0x200
je 0x421a31
cmp eax, 0x300
jne 0x4218e3
mov dword [ebp - 0x14], 2
jmp 0x4219db
mov dword [ebp - 0x14], 4
jmp 0x4219db
mov dword [ebp - 0x14], 3
jmp 0x4219db
cmp eax, 0x500
je 0x4219d4
cmp eax, 0x600
je 0x421a31
cmp eax, edx
jne 0x4218e3
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4219ff
mov ecx, dword [0x432c10]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4219ff
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x421a1b
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x421a1b
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x421a24
or dword [ebp - 0xc], edi
test al, 0x20
je 0x421a3a
or dword [ebp - 0xc], 0x8000000
jmp 0x421a45
mov dword [ebp - 0x14], 5
jmp 0x4219db
test al, 0x10
je 0x421a45
or dword [ebp - 0xc], 0x10000000
call fcn.00420c76
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x421a6b
call fcn.00412eb2
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00412e9f
mov dword [eax], 0x18
jmp 0x421af9
mov eax, dword [ebp + 8]
mov edi, dword [sym.imp.KERNEL32.dll_CreateFileA]
push ebx
push dword [ebp - 0xc]
mov dword [eax], 1
push dword [ebp - 0x14]
lea eax, [ebp - 0x34]
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 0x421b05
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x421ad1
test byte [ebp + 0x10], 1
je 0x421ad1
and dword [ebp - 8], 0x7fffffff
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x34]
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 0x421b05
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x434720]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00412ec5
pop ecx
call fcn.00412e9f
mov eax, dword [eax]
jmp 0x421f92
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x421b56
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x434720]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00412ec5
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x421af9
call fcn.00412e9f
mov dword [eax], 0xd
jmp 0x421af9
cmp eax, 2
jne 0x421b61
or byte [ebp - 1], 0x40
jmp 0x421b6a
cmp eax, 3
jne 0x421b6a
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.00420a45
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x434720]
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 + 0x434720]
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 0x421c3f
test cl, 0x80
je 0x421d0f
test byte [ebp + 0x10], 2
je 0x421c3f
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0041e9a9
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x421bfe
call fcn.00412eb2
cmp dword [eax], 0x83
je 0x421c3f
push dword [esi]
call fcn.004186bc
jmp 0x421af8
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0041e2eb
add esp, 0xc
test eax, eax
jne 0x421c2f
cmp byte [ebp - 4], 0x1a
jne 0x421c2f
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004243f7
add esp, 0xc
cmp eax, edi
je 0x421bf2
push ebx
push ebx
push dword [esi]
call fcn.0041e9a9
add esp, 0xc
cmp eax, edi
je 0x421bf2
test byte [ebp - 1], 0x80
je 0x421d0f
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x421c67
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x421c64
or dword [ebp + 0x10], edi
jmp 0x421c67
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x421cb4
cmp eax, 0x10000
je 0x421ca0
cmp eax, 0x14000
je 0x421ca0
cmp eax, 0x20000
je 0x421cae
cmp eax, 0x24000
je 0x421cae
cmp eax, 0x40000
je 0x421c9a
cmp eax, 0x44000
jne 0x421cb7
mov byte [ebp - 2], 1
jmp 0x421cb7
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x421cb7
mov byte [ebp - 2], 2
jmp 0x421cb7
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x421d0f
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x421d0f
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x421e69
cmp eax, 0x80000000
je 0x421e30
cmp eax, ecx
jne 0x421d0f
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x421d0f
cmp eax, 2
jbe 0x421f11
cmp eax, 4
jbe 0x421e02
cmp eax, 5
je 0x421f11
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x434720]
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 + 0x434720]
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 0x421d81
test byte [ebp + 0x10], 8
je 0x421d81
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x434720]
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 0x421f90
test byte [ebp + 0x10], 1
je 0x421f90
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x34]
push 3
push eax
push dword [ebp - 0x10]
and edi, 0x7fffffff
push edi
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileA]
cmp eax, 0xffffffff
jne 0x421f79
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00412ec5
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x434720]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00420ac2
pop ecx
jmp 0x421af8
push 2
push ebx
push ebx
push dword [esi]
call fcn.0041eeb5
add esp, 0x10
or eax, edx
je 0x421f11
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0041eeb5
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x421bf2
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0041e2eb
add esp, 0xc
cmp eax, 0xffffffff
je 0x421bf2
cmp eax, 2
je 0x421eb5
cmp eax, 3
jne 0x421f03
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x421eb5
mov byte [ebp - 2], 1
jmp 0x421d0f
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x421d0f
cmp eax, 2
jbe 0x421f11
cmp eax, 4
ja 0x421d06
push 2
push ebx
push ebx
push dword [esi]
call fcn.0041eeb5
add esp, 0x10
or eax, edx
je 0x421f11
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0041eeb5
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x421d0f
jmp 0x421bf2
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x421edd
push dword [esi]
call fcn.004186bc
pop ecx
call fcn.00412e9f
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x421f92
cmp eax, 0xfeff
jne 0x421f03
push ebx
push 2
push dword [esi]
call fcn.0041e9a9
add esp, 0xc
cmp eax, 0xffffffff
je 0x421bf2
mov byte [ebp - 2], 2
jmp 0x421d0f
push ebx
push ebx
push dword [esi]
call fcn.0041e9a9
add esp, 0xc
jmp 0x421ea7
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x421f31
dec eax
jne 0x421d0f
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x421f3f
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.00419eaf
add esp, 0xc
cmp eax, 0xffffffff
je 0x421f65
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x421f3f
jmp 0x421d0f
push dword [esi]
call fcn.004186bc
pop ecx
call fcn.00412e9f
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x421f92
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x434720]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret