Function at 0x4375cf
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 0x4375fe
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x437608
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00439345
test eax, eax
pop ecx
je 0x437623
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00426343
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004294b9
test eax, eax
pop ecx
je 0x43763e
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00426343
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x43765b
test ecx, 0x74000
jne 0x437657
cmp dword [ebp - 0x24], eax
je 0x43765b
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocStringLen
je 0x4376b5
dec eax
je 0x43769f
dec eax
je 0x43769a
call fcn.00428b8a
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00428b77
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0042643f
add esp, 0x14
jmp 0x437c67
mov dword [ebp - 8], edx
jmp 0x4376b8
test cl, 8
je 0x4376ac
test ecx, 0x70000
jne 0x43769a
mov dword [ebp - 8], 0x40000000
jmp 0x4376b8
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4376f9
sub eax, ecx
je 0x4376f0
sub eax, ecx
je 0x4376e7
sub eax, ecx
je 0x4376de
sub eax, 0x40
jne 0x437674
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4376fc
mov dword [ebp - 0x10], 3
jmp 0x4376fc
mov dword [ebp - 0x10], 2
jmp 0x4376fc
mov dword [ebp - 0x10], 1
jmp 0x4376fc
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 0x43774f
je 0x437746
cmp eax, ebx
je 0x437746
cmp eax, edi
je 0x43773d
cmp eax, 0x200
je 0x4377c2
cmp eax, 0x300
jne 0x437674
mov dword [ebp - 0x14], 2
jmp 0x43776c
mov dword [ebp - 0x14], 4
jmp 0x43776c
mov dword [ebp - 0x14], 3
jmp 0x43776c
cmp eax, 0x500
je 0x437765
cmp eax, 0x600
je 0x4377c2
cmp eax, edx
jne 0x437674
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x437790
mov ecx, dword [0x452a6c]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x437790
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4377ac
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4377ac
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4377b5
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4377cb
or dword [ebp - 0xc], 0x8000000
jmp 0x4377d6
mov dword [ebp - 0x14], 5
jmp 0x43776c
test al, 0x10
je 0x4377d6
or dword [ebp - 0xc], 0x10000000
call fcn.00437430
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4377fc
call fcn.00428b8a
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00428b77
mov dword [eax], 0x18
jmp 0x43788a
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 0x437896
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x437862
test byte [ebp + 0x10], 1
je 0x437862
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 0x437896
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4537a0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00428b9d
pop ecx
call fcn.00428b77
mov eax, dword [eax]
jmp 0x437d23
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4378e7
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4537a0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00428b9d
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x43788a
call fcn.00428b77
mov dword [eax], 0xd
jmp 0x43788a
cmp eax, 2
jne 0x4378f2
or byte [ebp - 1], 0x40
jmp 0x4378fb
cmp eax, 3
jne 0x4378fb
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004371ff
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4537a0]
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 + 0x4537a0]
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 0x4379d0
test cl, 0x80
je 0x437aa0
test byte [ebp + 0x10], 2
je 0x4379d0
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00439217
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x43798f
call fcn.00428b8a
cmp dword [eax], 0x83
je 0x4379d0
push dword [esi]
call fcn.00431bd3
jmp 0x437889
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.00438b59
add esp, 0xc
test eax, eax
jne 0x4379c0
cmp byte [ebp - 4], 0x1a
jne 0x4379c0
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004389a5
add esp, 0xc
cmp eax, edi
je 0x437983
push ebx
push ebx
push dword [esi]
call fcn.00439217
add esp, 0xc
cmp eax, edi
je 0x437983
test byte [ebp - 1], 0x80
je 0x437aa0
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4379f8
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4379f5
or dword [ebp + 0x10], edi
jmp 0x4379f8
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x437a45
cmp eax, 0x10000
je 0x437a31
cmp eax, 0x14000
je 0x437a31
cmp eax, 0x20000
je 0x437a3f
cmp eax, 0x24000
je 0x437a3f
cmp eax, 0x40000
je 0x437a2b
cmp eax, 0x44000
jne 0x437a48
mov byte [ebp - 2], 1
jmp 0x437a48
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x437a48
mov byte [ebp - 2], 2
jmp 0x437a48
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x437aa0
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x437aa0
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x437bfa
cmp eax, 0x80000000
je 0x437bc1
cmp eax, ecx
jne 0x437aa0
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x437aa0
cmp eax, 2
jbe 0x437ca2
cmp eax, 4
jbe 0x437b93
cmp eax, 5
je 0x437ca2
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4537a0]
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 + 0x4537a0]
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 0x437b12
test byte [ebp + 0x10], 8
je 0x437b12
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4537a0]
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 0x437d21
test byte [ebp + 0x10], 1
je 0x437d21
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 0x437d0a
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00428b9d
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4537a0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0043727c
pop ecx
jmp 0x437889
push 2
push ebx
push ebx
push dword [esi]
call fcn.00436143
add esp, 0x10
or eax, edx
je 0x437ca2
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00436143
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x437983
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00438b59
add esp, 0xc
cmp eax, 0xffffffff
je 0x437983
cmp eax, 2
je 0x437c46
cmp eax, 3
jne 0x437c94
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x437c46
mov byte [ebp - 2], 1
jmp 0x437aa0
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x437aa0
cmp eax, 2
jbe 0x437ca2
cmp eax, 4
ja 0x437a97
push 2
push ebx
push ebx
push dword [esi]
call fcn.00436143
add esp, 0x10
or eax, edx
je 0x437ca2
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00436143
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x437aa0
jmp 0x437983
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x437c6e
push dword [esi]
call fcn.00431bd3
pop ecx
call fcn.00428b77
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x437d23
cmp eax, 0xfeff
jne 0x437c94
push ebx
push 2
push dword [esi]
call fcn.00439217
add esp, 0xc
cmp eax, 0xffffffff
je 0x437983
mov byte [ebp - 2], 2
jmp 0x437aa0
push ebx
push ebx
push dword [esi]
call fcn.00439217
add esp, 0xc
jmp 0x437c38
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x437cc2
dec eax
jne 0x437aa0
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x437cd0
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.00431079
add esp, 0xc
cmp eax, 0xffffffff
je 0x437cf6
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x437cd0
jmp 0x437aa0
push dword [esi]
call fcn.00431bd3
pop ecx
call fcn.00428b77
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x437d23
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4537a0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret