Function at 0x59efc3
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 0x59eff2
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x59effc
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.005a3992
test eax, eax
pop ecx
je 0x59f017
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0057d4d4
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00582baa
test eax, eax
pop ecx
je 0x59f032
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0057d4d4
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x59f04f
test ecx, 0x74000
jne 0x59f04b
cmp dword [ebp - 0x24], eax
je 0x59f04f
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x59f0a9
dec eax
je 0x59f093
dec eax
je 0x59f08e
call fcn.0057eaa0
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0057ea8d
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0057d608
add esp, 0x14
jmp 0x59f65c
mov dword [ebp - 8], edx
jmp 0x59f0ac
test cl, 8
je 0x59f0a0
test ecx, 0x70000
jne 0x59f08e
mov dword [ebp - 8], 0x40000000
jmp 0x59f0ac
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x59f0ed
sub eax, ecx
je 0x59f0e4
sub eax, ecx
je 0x59f0db
sub eax, ecx
je 0x59f0d2
sub eax, 0x40
jne 0x59f068
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x59f0f0
mov dword [ebp - 0x10], 3
jmp 0x59f0f0
mov dword [ebp - 0x10], 2
jmp 0x59f0f0
mov dword [ebp - 0x10], 1
jmp 0x59f0f0
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 0x59f143
je 0x59f13a
cmp eax, ebx
je 0x59f13a
cmp eax, edi
je 0x59f131
cmp eax, 0x200
je 0x59f1b6
cmp eax, 0x300
jne 0x59f068
mov dword [ebp - 0x14], 2
jmp 0x59f160
mov dword [ebp - 0x14], 4
jmp 0x59f160
mov dword [ebp - 0x14], 3
jmp 0x59f160
cmp eax, 0x500
je 0x59f159
cmp eax, 0x600
je 0x59f1b6
cmp eax, edx
jne 0x59f068
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x59f184
mov ecx, dword [0x6e4bf0]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x59f184
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x59f1a0
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x59f1a0
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x59f1a9
or dword [ebp - 0xc], edi
test al, 0x20
je 0x59f1bf
or dword [ebp - 0xc], 0x8000000
jmp 0x59f1ca
mov dword [ebp - 0x14], 5
jmp 0x59f160
test al, 0x10
je 0x59f1ca
or dword [ebp - 0xc], 0x10000000
call fcn.0059ab30
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x59f1f0
call fcn.0057eaa0
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0057ea8d
mov dword [eax], 0x18
jmp 0x59f27e
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 0x59f28a
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x59f256
test byte [ebp + 0x10], 1
je 0x59f256
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 0x59f28a
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x6e6f40]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0057eab3
pop ecx
call fcn.0057ea8d
mov eax, dword [eax]
jmp 0x59f718
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x59f2db
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x6e6f40]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0057eab3
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x59f27e
call fcn.0057ea8d
mov dword [eax], 0xd
jmp 0x59f27e
cmp eax, 2
jne 0x59f2e6
or byte [ebp - 1], 0x40
jmp 0x59f2ef
cmp eax, 3
jne 0x59f2ef
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0059a8ff
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x6e6f40]
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 + 0x6e6f40]
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 0x59f3c5
test cl, 0x80
je 0x59f495
test byte [ebp + 0x10], 2
je 0x59f3c5
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0058d258
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x59f383
call fcn.0057eaa0
cmp dword [eax], 0x83
je 0x59f3c5
push dword [esi]
call fcn.0058d48e
jmp 0x59f27d
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.00590b75
add esp, 0xc
test eax, eax
jne 0x59f3b5
cmp word [ebp - 0x2c], 0x1a
jne 0x59f3b5
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.005a35d7
add esp, 0xc
cmp eax, edi
je 0x59f377
push ebx
push ebx
push dword [esi]
call fcn.0058d258
add esp, 0xc
cmp eax, edi
je 0x59f377
test byte [ebp - 1], 0x80
je 0x59f495
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x59f3ed
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x59f3ea
or dword [ebp + 0x10], edi
jmp 0x59f3ed
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x59f43a
cmp eax, 0x10000
je 0x59f426
cmp eax, 0x14000
je 0x59f426
cmp eax, 0x20000
je 0x59f434
cmp eax, 0x24000
je 0x59f434
cmp eax, 0x40000
je 0x59f420
cmp eax, 0x44000
jne 0x59f43d
mov byte [ebp - 2], 1
jmp 0x59f43d
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x59f43d
mov byte [ebp - 2], 2
jmp 0x59f43d
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x59f495
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x59f495
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x59f5ef
cmp eax, 0x80000000
je 0x59f5b6
cmp eax, ecx
jne 0x59f495
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x59f495
cmp eax, 2
jbe 0x59f697
cmp eax, 4
jbe 0x59f588
cmp eax, 5
je 0x59f697
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6e6f40]
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 + 0x6e6f40]
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 0x59f507
test byte [ebp + 0x10], 8
je 0x59f507
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6e6f40]
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 0x59f716
test byte [ebp + 0x10], 1
je 0x59f716
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 0x59f6ff
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0057eab3
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6e6f40]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0059a97c
pop ecx
jmp 0x59f27d
push 2
push ebx
push ebx
push dword [esi]
call fcn.0059a562
add esp, 0x10
or eax, edx
je 0x59f697
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0059a562
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x59f377
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00590b75
add esp, 0xc
cmp eax, 0xffffffff
je 0x59f377
cmp eax, 2
je 0x59f63b
cmp eax, 3
jne 0x59f689
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x59f63b
mov byte [ebp - 2], 1
jmp 0x59f495
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x59f495
cmp eax, 2
jbe 0x59f697
cmp eax, 4
ja 0x59f48c
push 2
push ebx
push ebx
push dword [esi]
call fcn.0059a562
add esp, 0x10
or eax, edx
je 0x59f697
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0059a562
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x59f495
jmp 0x59f377
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x59f663
push dword [esi]
call fcn.0058d48e
pop ecx
call fcn.0057ea8d
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x59f718
cmp eax, 0xfeff
jne 0x59f689
push ebx
push 2
push dword [esi]
call fcn.0058d258
add esp, 0xc
cmp eax, 0xffffffff
je 0x59f377
mov byte [ebp - 2], 2
jmp 0x59f495
push ebx
push ebx
push dword [esi]
call fcn.0058d258
add esp, 0xc
jmp 0x59f62d
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x59f6b7
dec eax
jne 0x59f495
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x59f6c5
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.0058caa5
add esp, 0xc
cmp eax, 0xffffffff
je 0x59f6eb
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x59f6c5
jmp 0x59f495
push dword [esi]
call fcn.0058d48e
pop ecx
call fcn.0057ea8d
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x59f718
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6e6f40]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret