Function at 0x43926f
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 0x43929e
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x4392a8
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0043f470
test eax, eax
pop ecx
je 0x4392c3
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00436a17
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004339e1
test eax, eax
pop ecx
je 0x4392de
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00436a17
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4392fb
test ecx, 0x74000
jne 0x4392f7
cmp dword [ebp - 0x24], eax
je 0x4392fb
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocStringLen
je 0x439355
dec eax
je 0x43933f
dec eax
je 0x43933a
call fcn.00431c0a
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00431bf7
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00436b13
add esp, 0x14
jmp 0x439907
mov dword [ebp - 8], edx
jmp 0x439358
test cl, 8
je 0x43934c
test ecx, 0x70000
jne 0x43933a
mov dword [ebp - 8], 0x40000000
jmp 0x439358
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x439399
sub eax, ecx
je 0x439390
sub eax, ecx
je 0x439387
sub eax, ecx
je 0x43937e
sub eax, 0x40
jne 0x439314
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x43939c
mov dword [ebp - 0x10], 3
jmp 0x43939c
mov dword [ebp - 0x10], 2
jmp 0x43939c
mov dword [ebp - 0x10], 1
jmp 0x43939c
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 0x4393ef
je 0x4393e6
cmp eax, ebx
je 0x4393e6
cmp eax, edi
je 0x4393dd
cmp eax, 0x200
je 0x439462
cmp eax, 0x300
jne 0x439314
mov dword [ebp - 0x14], 2
jmp 0x43940c
mov dword [ebp - 0x14], 4
jmp 0x43940c
mov dword [ebp - 0x14], 3
jmp 0x43940c
cmp eax, 0x500
je 0x439405
cmp eax, 0x600
je 0x439462
cmp eax, edx
jne 0x439314
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x439430
mov ecx, dword [0x45df2c]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x439430
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x43944c
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x43944c
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x439455
or dword [ebp - 0xc], edi
test al, 0x20
je 0x43946b
or dword [ebp - 0xc], 0x8000000
jmp 0x439476
mov dword [ebp - 0x14], 5
jmp 0x43940c
test al, 0x10
je 0x439476
or dword [ebp - 0xc], 0x10000000
call fcn.0043a1c4
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x43949c
call fcn.00431c0a
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00431bf7
mov dword [eax], 0x18
jmp 0x43952a
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 0x439536
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x439502
test byte [ebp + 0x10], 1
je 0x439502
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 0x439536
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x460e80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00431c1d
pop ecx
call fcn.00431bf7
mov eax, dword [eax]
jmp 0x4399c3
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x439587
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x460e80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00431c1d
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x43952a
call fcn.00431bf7
mov dword [eax], 0xd
jmp 0x43952a
cmp eax, 2
jne 0x439592
or byte [ebp - 1], 0x40
jmp 0x43959b
cmp eax, 3
jne 0x43959b
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.00439f93
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x460e80]
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 + 0x460e80]
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 0x439670
test cl, 0x80
je 0x439740
test byte [ebp + 0x10], 2
je 0x439670
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0042ff02
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x43962f
call fcn.00431c0a
cmp dword [eax], 0x83
je 0x439670
push dword [esi]
call fcn.0042fda1
jmp 0x439529
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0042f041
add esp, 0xc
test eax, eax
jne 0x439660
cmp byte [ebp - 4], 0x1a
jne 0x439660
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0043f200
add esp, 0xc
cmp eax, edi
je 0x439623
push ebx
push ebx
push dword [esi]
call fcn.0042ff02
add esp, 0xc
cmp eax, edi
je 0x439623
test byte [ebp - 1], 0x80
je 0x439740
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x439698
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x439695
or dword [ebp + 0x10], edi
jmp 0x439698
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4396e5
cmp eax, 0x10000
je 0x4396d1
cmp eax, 0x14000
je 0x4396d1
cmp eax, 0x20000
je 0x4396df
cmp eax, 0x24000
je 0x4396df
cmp eax, 0x40000
je 0x4396cb
cmp eax, 0x44000
jne 0x4396e8
mov byte [ebp - 2], 1
jmp 0x4396e8
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4396e8
mov byte [ebp - 2], 2
jmp 0x4396e8
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x439740
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x439740
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x43989a
cmp eax, 0x80000000
je 0x439861
cmp eax, ecx
jne 0x439740
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x439740
cmp eax, 2
jbe 0x439942
cmp eax, 4
jbe 0x439833
cmp eax, 5
je 0x439942
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x460e80]
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 + 0x460e80]
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 0x4397b2
test byte [ebp + 0x10], 8
je 0x4397b2
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x460e80]
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 0x4399c1
test byte [ebp + 0x10], 1
je 0x4399c1
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 0x4399aa
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00431c1d
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x460e80]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0043a010
pop ecx
jmp 0x439529
push 2
push ebx
push ebx
push dword [esi]
call fcn.00439a94
add esp, 0x10
or eax, edx
je 0x439942
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00439a94
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x439623
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0042f041
add esp, 0xc
cmp eax, 0xffffffff
je 0x439623
cmp eax, 2
je 0x4398e6
cmp eax, 3
jne 0x439934
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4398e6
mov byte [ebp - 2], 1
jmp 0x439740
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x439740
cmp eax, 2
jbe 0x439942
cmp eax, 4
ja 0x439737
push 2
push ebx
push ebx
push dword [esi]
call fcn.00439a94
add esp, 0x10
or eax, edx
je 0x439942
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00439a94
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x439740
jmp 0x439623
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x43990e
push dword [esi]
call fcn.0042fda1
pop ecx
call fcn.00431bf7
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4399c3
cmp eax, 0xfeff
jne 0x439934
push ebx
push 2
push dword [esi]
call fcn.0042ff02
add esp, 0xc
cmp eax, 0xffffffff
je 0x439623
mov byte [ebp - 2], 2
jmp 0x439740
push ebx
push ebx
push dword [esi]
call fcn.0042ff02
add esp, 0xc
jmp 0x4398d8
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x439962
dec eax
jne 0x439740
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x439970
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.0042fcc5
add esp, 0xc
cmp eax, 0xffffffff
je 0x439996
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x439970
jmp 0x439740
push dword [esi]
call fcn.0042fda1
pop ecx
call fcn.00431bf7
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4399c3
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x460e80]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret