Function at 0x4260f0
Capabilities:
Delete file
Encode data using xor
Hash data with crc32
Set environment variable

Disassembly:
push rbp
push rbx
sub rsp, 0xd8
mov rbp, rsp
mov qword [rbp + 0x40], 0
mov qword [rbp + 0x50], 0
mov qword [rbp + 0x48], 0
mov qword [rbp + 0x60], 0
mov qword [rbp + 0x58], 0
mov qword [rbp + 0x68], 0
mov qword [rbp + 0x70], 0
mov qword [rbp + 0xc8], 0
mov qword [rbp + 0xc0], 0
mov qword [rbp + 0xb8], 0
mov qword [rbp + 0xb0], 0
mov qword [rbp + 0xa8], 0
mov qword [rbp + 0xa0], 0
mov qword [rbp + 0x78], rbp
nop
lea rcx, [0x00422de0]
call fcn.0040de30
nop
lea rcx, [0x00435310]
lea rdx, [0x00421e00]
call fcn.0040d600
mov rax, qword [0x0042b510]
mov dword [rax], 0
mov rcx, qword [0x004223a8]
mov dl, 1
call fcn.00422760
mov qword [0x00435318], rax
mov rcx, qword [0x00435318]
lea rdx, [0x0042675c]
mov r8b, 1
call fcn.00422980
test al, al
je 0x426548
mov rax, qword [0x00435318]
mov rcx, qword [rax + 0x60]
lea rdx, [0x004352d4]
mov rax, qword [0x00435318]
movsxd r8, dword [rax + 0x68]
call fcn.00404e80
mov rcx, qword [0x00435318]
call fcn.00422850
mov rcx, qword [0x00435318]
lea rdx, [0x00426770]
xor r8, r8
call fcn.00422980
test al, al
je 0x42624d
mov rax, qword [0x00435318]
mov rcx, qword [rax + 0x60]
lea rdx, [0x00435324]
mov r8d, 4
call fcn.00404e80
mov rcx, qword [0x00435318]
call fcn.00422850
mov rcx, qword [0x00435318]
lea rdx, [0x00426788]
mov r8b, 1
call fcn.00422980
test al, al
je 0x4264d6
mov dword [0x00435320], 0xffffffff
mov rax, qword [0x00435318]
mov rax, qword [rax + 0x60]
mov rcx, qword [0x00435318]
mov ecx, dword [rcx + 0x68]
lea rax, [rax + rcx - 1]
mov qword [rbp + 0x90], rax
xor rax, rax
mov rcx, qword [0x00435318]
mov ecx, dword [rcx + 0x68]
sub ecx, 1
mov dword [rbp + 0x9c], eax
cmp dword [rbp + 0x9c], ecx
ja 0x426307
add ecx, 1
mov eax, dword [0x00435320]
shr eax, 8
lea rdx, [0x0042aec4]
mov r8, qword [rbp + 0x90]
movzx r8, byte [r8]
mov r9d, dword [0x00435320]
and r9d, 0xff
xor r8d, r9d
mov r8d, r8d
xor eax, dword [rdx + r8*4]
mov dword [0x00435320], eax
sub qword [rbp + 0x90], 1
add dword [rbp + 0x9c], 1
cmp dword [rbp + 0x9c], ecx
jne 0x4262b7
nop
mov eax, dword [0x00435320]
cmp eax, dword [0x00435324]
je 0x426348
lea rcx, [rbp + 0x70]
lea rdx, [0x00421e60]
call fcn.0040d600
mov rcx, qword [0x0042b610]
mov rdx, qword [rbp + 0x70]
call fcn.00406240
mov rcx, rax
call fcn.004063b0
call fcn.00404df0
jmp 0x4265c5
lea rcx, [rbp + 0xc8]
lea rdx, [0x00421e40]
call fcn.0040d600
lea rcx, [rbp + 0xc0]
lea rdx, [0x00421e50]
call fcn.0040d600
nop
mov rcx, qword [rbp + 0xc8]
call fcn.0040a380
mov rbx, rax
mov rcx, qword [rbp + 0xc0]
call fcn.0040a380
xor rcx, rcx
mov rdx, rbx
mov r8, rax
mov r9d, 0x40
call sub.user32.dll_MessageBoxW
nop
lea rcx, [rbp + 0xc8]
call fcn.004095a0
lea rcx, [rbp + 0xc0]
call fcn.004095a0
lea rcx, [rbp + 0x68]
xor rdx, rdx
call fcn.00421fd0
lea rcx, [0x004352f8]
mov rdx, qword [rbp + 0x68]
call fcn.00409ab0
lea rcx, [rbp + 0x58]
lea rdx, [0x004352d4]
call fcn.0040a4e0
lea rcx, [rbp + 0x60]
mov rdx, qword [0x004352f8]
mov r8, qword [rbp + 0x58]
call fcn.004218d0
lea rcx, [0x00435300]
mov rdx, qword [rbp + 0x60]
call fcn.00409ab0
mov rcx, qword [0x00435318]
mov rdx, qword [0x00435300]
call fcn.00422870
lea rcx, [rbp + 0x50]
lea rdx, [0x00421df0]
call fcn.0040d600
mov rcx, qword [rbp + 0x50]
call fcn.0040a380
mov rbx, rax
lea rcx, [rbp + 0x48]
call fcn.00421710
mov rcx, qword [rbp + 0x48]
call fcn.0040a380
mov rcx, rbx
mov rdx, rax
call sub.kernel32.dll_SetEnvironmentVariableW
lea rcx, [rbp + 0x40]
mov rax, qword [0x0042b748]
mov rdx, qword [rax]
call fcn.0040a400
lea rcx, [0x00435310]
mov edx, 5
lea r8, [0x004267a0]
mov r9, qword [0x00435300]
lea rax, [0x004267c8]
mov qword [rsp + 0x20], rax
mov rax, qword [rbp + 0x40]
mov qword [rsp + 0x28], rax
lea rax, [0x004267dc]
mov qword [rsp + 0x30], rax
call fcn.0040a7f0
mov rcx, qword [0x00435310]
call fcn.00422150
mov rcx, qword [0x0042b510]
mov dword [rcx], eax
mov rcx, qword [0x00435300]
call fcn.0040a380
mov rcx, rax
call sub.kernel32.dll_DeleteFileW
jmp 0x4265b8
lea rcx, [rbp + 0xb8]
lea rdx, [0x00421e10]
call fcn.0040d600
lea rcx, [rbp + 0xb0]
lea rdx, [0x004267ec]
call fcn.00409b30
nop
mov rcx, qword [rbp + 0xb8]
call fcn.0040a380
mov rbx, rax
mov rcx, qword [rbp + 0xb0]
call fcn.0040a380
xor rcx, rcx
mov rdx, rbx
mov r8, rax
mov r9d, 0x40
call sub.user32.dll_MessageBoxW
nop
lea rcx, [rbp + 0xb8]
call fcn.004095a0
lea rcx, [rbp + 0xb0]
call fcn.004095a0
jmp 0x4265b8
lea rcx, [rbp + 0xa8]
lea rdx, [0x00421e30]
call fcn.0040d600
lea rcx, [rbp + 0xa0]
lea rdx, [0x00426804]
call fcn.00409b30
nop
mov rcx, qword [rbp + 0xa8]
call fcn.0040a380
mov rbx, rax
mov rcx, qword [rbp + 0xa0]
call fcn.0040a380
xor rcx, rcx
mov rdx, rbx
mov r8, rax
mov r9d, 0x40
call sub.user32.dll_MessageBoxW
nop
lea rcx, [rbp + 0xa8]
call fcn.004095a0
lea rcx, [rbp + 0xa0]
call fcn.004095a0
mov rcx, qword [0x00435318]
call fcn.004068f0
nop
lea rcx, [rbp + 0x40]
mov edx, 7
call fcn.00409680
lea rcx, [rbp + 0xa0]
mov edx, 6
call fcn.00409680
call fcn.00409200
jmp 0x4265f5
lea rsp, [rbp + 0xd8]
pop rbx
pop rbp
ret