Function at 0x5409dd
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 0x540a0c
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x540a16
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00542859
test eax, eax
pop ecx
je 0x540a31
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0052370b
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0052e4e3
test eax, eax
pop ecx
je 0x540a4c
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0052370b
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x540a69
test ecx, 0x74000
jne 0x540a65
cmp dword [ebp - 0x24], eax
je 0x540a69
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x540ac3
dec eax
je 0x540aad
dec eax
je 0x540aa8
call fcn.0052e7a4
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0052e791
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00523807
add esp, 0x14
jmp 0x541075
mov dword [ebp - 8], edx
jmp 0x540ac6
test cl, 8
je 0x540aba
test ecx, 0x70000
jne 0x540aa8
mov dword [ebp - 8], 0x40000000
jmp 0x540ac6
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x540b07
sub eax, ecx
je 0x540afe
sub eax, ecx
je 0x540af5
sub eax, ecx
je 0x540aec
sub eax, 0x40
jne 0x540a82
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x540b0a
mov dword [ebp - 0x10], 3
jmp 0x540b0a
mov dword [ebp - 0x10], 2
jmp 0x540b0a
mov dword [ebp - 0x10], 1
jmp 0x540b0a
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 0x540b5d
je 0x540b54
cmp eax, ebx
je 0x540b54
cmp eax, edi
je 0x540b4b
cmp eax, 0x200
je 0x540bd0
cmp eax, 0x300
jne 0x540a82
mov dword [ebp - 0x14], 2
jmp 0x540b7a
mov dword [ebp - 0x14], 4
jmp 0x540b7a
mov dword [ebp - 0x14], 3
jmp 0x540b7a
cmp eax, 0x500
je 0x540b73
cmp eax, 0x600
je 0x540bd0
cmp eax, edx
jne 0x540a82
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x540b9e
mov ecx, dword [0x67d124]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x540b9e
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x540bba
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x540bba
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x540bc3
or dword [ebp - 0xc], edi
test al, 0x20
je 0x540bd9
or dword [ebp - 0xc], 0x8000000
jmp 0x540be4
mov dword [ebp - 0x14], 5
jmp 0x540b7a
test al, 0x10
je 0x540be4
or dword [ebp - 0xc], 0x10000000
call fcn.0053fdcc
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x540c0a
call fcn.0052e7a4
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0052e791
mov dword [eax], 0x18
jmp 0x540c98
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 0x540ca4
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x540c70
test byte [ebp + 0x10], 1
je 0x540c70
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 0x540ca4
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x67e8e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0052e7b7
pop ecx
call fcn.0052e791
mov eax, dword [eax]
jmp 0x541131
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x540cf5
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x67e8e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0052e7b7
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x540c98
call fcn.0052e791
mov dword [eax], 0xd
jmp 0x540c98
cmp eax, 2
jne 0x540d00
or byte [ebp - 1], 0x40
jmp 0x540d09
cmp eax, 3
jne 0x540d09
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0053fb9b
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x67e8e0]
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 + 0x67e8e0]
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 0x540dde
test cl, 0x80
je 0x540eae
test byte [ebp + 0x10], 2
je 0x540dde
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.005377c5
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x540d9d
call fcn.0052e7a4
cmp dword [eax], 0x83
je 0x540dde
push dword [esi]
call fcn.005360fb
jmp 0x540c97
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0053943a
add esp, 0xc
test eax, eax
jne 0x540dce
cmp byte [ebp - 4], 0x1a
jne 0x540dce
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.005425e9
add esp, 0xc
cmp eax, edi
je 0x540d91
push ebx
push ebx
push dword [esi]
call fcn.005377c5
add esp, 0xc
cmp eax, edi
je 0x540d91
test byte [ebp - 1], 0x80
je 0x540eae
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x540e06
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x540e03
or dword [ebp + 0x10], edi
jmp 0x540e06
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x540e53
cmp eax, 0x10000
je 0x540e3f
cmp eax, 0x14000
je 0x540e3f
cmp eax, 0x20000
je 0x540e4d
cmp eax, 0x24000
je 0x540e4d
cmp eax, 0x40000
je 0x540e39
cmp eax, 0x44000
jne 0x540e56
mov byte [ebp - 2], 1
jmp 0x540e56
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x540e56
mov byte [ebp - 2], 2
jmp 0x540e56
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x540eae
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x540eae
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x541008
cmp eax, 0x80000000
je 0x540fcf
cmp eax, ecx
jne 0x540eae
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x540eae
cmp eax, 2
jbe 0x5410b0
cmp eax, 4
jbe 0x540fa1
cmp eax, 5
je 0x5410b0
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x67e8e0]
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 + 0x67e8e0]
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 0x540f20
test byte [ebp + 0x10], 8
je 0x540f20
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x67e8e0]
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 0x54112f
test byte [ebp + 0x10], 1
je 0x54112f
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 0x541118
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0052e7b7
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x67e8e0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0053fc18
pop ecx
jmp 0x540c97
push 2
push ebx
push ebx
push dword [esi]
call fcn.0053eab4
add esp, 0x10
or eax, edx
je 0x5410b0
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0053eab4
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x540d91
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0053943a
add esp, 0xc
cmp eax, 0xffffffff
je 0x540d91
cmp eax, 2
je 0x541054
cmp eax, 3
jne 0x5410a2
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x541054
mov byte [ebp - 2], 1
jmp 0x540eae
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x540eae
cmp eax, 2
jbe 0x5410b0
cmp eax, 4
ja 0x540ea5
push 2
push ebx
push ebx
push dword [esi]
call fcn.0053eab4
add esp, 0x10
or eax, edx
je 0x5410b0
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0053eab4
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x540eae
jmp 0x540d91
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x54107c
push dword [esi]
call fcn.005360fb
pop ecx
call fcn.0052e791
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x541131
cmp eax, 0xfeff
jne 0x5410a2
push ebx
push 2
push dword [esi]
call fcn.005377c5
add esp, 0xc
cmp eax, 0xffffffff
je 0x540d91
mov byte [ebp - 2], 2
jmp 0x540eae
push ebx
push ebx
push dword [esi]
call fcn.005377c5
add esp, 0xc
jmp 0x541046
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x5410d0
dec eax
jne 0x540eae
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x5410de
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.00536e52
add esp, 0xc
cmp eax, 0xffffffff
je 0x541104
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x5410de
jmp 0x540eae
push dword [esi]
call fcn.005360fb
pop ecx
call fcn.0052e791
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x541131
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x67e8e0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret