Function at 0x4279e2
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 0x427a11
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x427a1b
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0042a3c1
test eax, eax
pop ecx
je 0x427a36
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0041a8a9
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0041b4b9
test eax, eax
pop ecx
je 0x427a51
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0041a8a9
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x427a6e
test ecx, 0x74000
jne 0x427a6a
cmp dword [ebp - 0x24], eax
je 0x427a6e
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x427ac8
dec eax
je 0x427ab2
dec eax
je 0x427aad
call fcn.0041d423
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0041d410
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0041a9a5
add esp, 0x14
jmp 0x42807b
mov dword [ebp - 8], edx
jmp 0x427acb
test cl, 8
je 0x427abf
test ecx, 0x70000
jne 0x427aad
mov dword [ebp - 8], 0x40000000
jmp 0x427acb
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x427b0c
sub eax, ecx
je 0x427b03
sub eax, ecx
je 0x427afa
sub eax, ecx
je 0x427af1
sub eax, 0x40
jne 0x427a87
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x427b0f
mov dword [ebp - 0x10], 3
jmp 0x427b0f
mov dword [ebp - 0x10], 2
jmp 0x427b0f
mov dword [ebp - 0x10], 1
jmp 0x427b0f
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 0x427b62
je 0x427b59
cmp eax, ebx
je 0x427b59
cmp eax, edi
je 0x427b50
cmp eax, 0x200
je 0x427bd5
cmp eax, 0x300
jne 0x427a87
mov dword [ebp - 0x14], 2
jmp 0x427b7f
mov dword [ebp - 0x14], 4
jmp 0x427b7f
mov dword [ebp - 0x14], 3
jmp 0x427b7f
cmp eax, 0x500
je 0x427b78
cmp eax, 0x600
je 0x427bd5
cmp eax, edx
jne 0x427a87
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x427ba3
mov ecx, dword [0x4383c4]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x427ba3
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x427bbf
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x427bbf
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x427bc8
or dword [ebp - 0xc], edi
test al, 0x20
je 0x427bde
or dword [ebp - 0xc], 0x8000000
jmp 0x427be9
mov dword [ebp - 0x14], 5
jmp 0x427b7f
test al, 0x10
je 0x427be9
or dword [ebp - 0xc], 0x10000000
call fcn.00428590
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x427c0f
call fcn.0041d423
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0041d410
mov dword [eax], 0x18
jmp 0x427c9d
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 0x427ca9
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x427c75
test byte [ebp + 0x10], 1
je 0x427c75
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 0x427ca9
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x438fc0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0041d436
pop ecx
call fcn.0041d410
mov eax, dword [eax]
jmp 0x428137
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x427cfa
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x438fc0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0041d436
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x427c9d
call fcn.0041d410
mov dword [eax], 0xd
jmp 0x427c9d
cmp eax, 2
jne 0x427d05
or byte [ebp - 1], 0x40
jmp 0x427d0e
cmp eax, 3
jne 0x427d0e
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0042835f
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x438fc0]
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 + 0x438fc0]
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 0x427de4
test cl, 0x80
je 0x427eb4
test byte [ebp + 0x10], 2
je 0x427de4
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0042a293
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x427da2
call fcn.0041d423
cmp dword [eax], 0x83
je 0x427de4
push dword [esi]
call fcn.00420292
jmp 0x427c9c
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.0041fba7
add esp, 0xc
test eax, eax
jne 0x427dd4
cmp word [ebp - 0x2c], 0x1a
jne 0x427dd4
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0042a0df
add esp, 0xc
cmp eax, edi
je 0x427d96
push ebx
push ebx
push dword [esi]
call fcn.0042a293
add esp, 0xc
cmp eax, edi
je 0x427d96
test byte [ebp - 1], 0x80
je 0x427eb4
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x427e0c
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x427e09
or dword [ebp + 0x10], edi
jmp 0x427e0c
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x427e59
cmp eax, 0x10000
je 0x427e45
cmp eax, 0x14000
je 0x427e45
cmp eax, 0x20000
je 0x427e53
cmp eax, 0x24000
je 0x427e53
cmp eax, 0x40000
je 0x427e3f
cmp eax, 0x44000
jne 0x427e5c
mov byte [ebp - 2], 1
jmp 0x427e5c
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x427e5c
mov byte [ebp - 2], 2
jmp 0x427e5c
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x427eb4
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x427eb4
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x42800e
cmp eax, 0x80000000
je 0x427fd5
cmp eax, ecx
jne 0x427eb4
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x427eb4
cmp eax, 2
jbe 0x4280b6
cmp eax, 4
jbe 0x427fa7
cmp eax, 5
je 0x4280b6
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x438fc0]
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 + 0x438fc0]
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 0x427f26
test byte [ebp + 0x10], 8
je 0x427f26
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x438fc0]
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 0x428135
test byte [ebp + 0x10], 1
je 0x428135
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 0x42811e
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0041d436
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x438fc0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004283dc
pop ecx
jmp 0x427c9c
push 2
push ebx
push ebx
push dword [esi]
call fcn.00426b86
add esp, 0x10
or eax, edx
je 0x4280b6
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00426b86
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x427d96
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0041fba7
add esp, 0xc
cmp eax, 0xffffffff
je 0x427d96
cmp eax, 2
je 0x42805a
cmp eax, 3
jne 0x4280a8
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x42805a
mov byte [ebp - 2], 1
jmp 0x427eb4
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x427eb4
cmp eax, 2
jbe 0x4280b6
cmp eax, 4
ja 0x427eab
push 2
push ebx
push ebx
push dword [esi]
call fcn.00426b86
add esp, 0x10
or eax, edx
je 0x4280b6
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00426b86
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x427eb4
jmp 0x427d96
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x428082
push dword [esi]
call fcn.00420292
pop ecx
call fcn.0041d410
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x428137
cmp eax, 0xfeff
jne 0x4280a8
push ebx
push 2
push dword [esi]
call fcn.0042a293
add esp, 0xc
cmp eax, 0xffffffff
je 0x427d96
mov byte [ebp - 2], 2
jmp 0x427eb4
push ebx
push ebx
push dword [esi]
call fcn.0042a293
add esp, 0xc
jmp 0x42804c
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4280d6
dec eax
jne 0x427eb4
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4280e4
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.004272e8
add esp, 0xc
cmp eax, 0xffffffff
je 0x42810a
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4280e4
jmp 0x427eb4
push dword [esi]
call fcn.00420292
pop ecx
call fcn.0041d410
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x428137
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x438fc0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret