Function at 0x4647a0
Capabilities:
Contain obfuscated stackstrings
Encode data using base64
Parse pe header

Disassembly:
mov qword [rsp + 0x10], rbx
mov qword [rsp + 0x18], rbp
mov qword [rsp + 0x20], rsi
push rdi
sub rsp, 0x40
mov rbp, r9
mov rsi, r8
mov rbx, rdx
mov rdi, rcx
test r8, r8
jne 0x4647cc
xor al, al
jmp 0x4649ff
mov rax, qword [r9]
xor r11d, r11d
mov qword [rsp + 0x50], r12
mov byte [rsp], 0x41
mov byte [rsp + 1], 0x42
mov byte [rsp + 2], 0x43
lea r12, [r8 + rax]
mov byte [rsp + 3], 0x44
mov byte [rsp + 4], 0x45
mov byte [rsp + 5], 0x46
mov byte [rsp + 6], 0x47
mov byte [rsp + 7], 0x48
mov byte [rsp + 8], 0x49
mov byte [rsp + 9], 0x4a
mov byte [rsp + 0xa], 0x4b
mov byte [rsp + 0xb], 0x4c
mov byte [rsp + 0xc], 0x4d
mov byte [rsp + 0xd], 0x4e
mov byte [rsp + 0xe], 0x4f
mov byte [rsp + 0xf], 0x50
mov byte [rsp + 0x10], 0x51
mov byte [rsp + 0x11], 0x52
mov byte [rsp + 0x12], 0x53
mov byte [rsp + 0x13], 0x54
mov byte [rsp + 0x14], 0x55
mov byte [rsp + 0x15], 0x56
mov byte [rsp + 0x16], 0x57
mov byte [rsp + 0x17], 0x58
mov byte [rsp + 0x18], 0x59
mov byte [rsp + 0x19], 0x5a
mov byte [rsp + 0x1a], 0x61
mov byte [rsp + 0x1b], 0x62
mov byte [rsp + 0x1c], 0x63
mov byte [rsp + 0x1d], 0x64
mov byte [rsp + 0x1e], 0x65
mov byte [rsp + 0x1f], 0x66
mov byte [rsp + 0x20], 0x67
mov byte [rsp + 0x21], 0x68
mov byte [rsp + 0x22], 0x69
mov byte [rsp + 0x23], 0x6a
mov byte [rsp + 0x24], 0x6b
mov byte [rsp + 0x25], 0x6c
mov byte [rsp + 0x26], 0x6d
mov byte [rsp + 0x27], 0x6e
mov byte [rsp + 0x28], 0x6f
mov byte [rsp + 0x29], 0x70
mov byte [rsp + 0x2a], 0x71
mov byte [rsp + 0x2b], 0x72
mov byte [rsp + 0x2c], 0x73
mov byte [rsp + 0x2d], 0x74
mov byte [rsp + 0x2e], 0x75
mov byte [rsp + 0x2f], 0x76
mov byte [rsp + 0x30], 0x77
mov byte [rsp + 0x31], 0x78
mov byte [rsp + 0x32], 0x79
mov byte [rsp + 0x33], 0x7a
mov byte [rsp + 0x34], 0x30
mov byte [rsp + 0x35], 0x31
mov byte [rsp + 0x36], 0x32
mov byte [rsp + 0x37], 0x33
mov byte [rsp + 0x38], 0x34
mov byte [rsp + 0x39], 0x35
mov byte [rsp + 0x3a], 0x36
mov byte [rsp + 0x3b], 0x37
mov byte [rsp + 0x3c], 0x38
mov byte [rsp + 0x3d], 0x39
mov byte [rsp + 0x3e], 0x2b
mov byte [rsp + 0x3f], 0x2f
mov rcx, r8
mov rdx, r11
test rbx, rbx
je 0x4649f1
add r8, 4
nop dword [rax]
movzx r9d, byte [rdx + rdi]
inc rdx
shl r9d, 0x10
cmp rdx, rbx
jne 0x464949
mov r11d, 2
jmp 0x46496d
movzx eax, byte [rdx + rdi]
inc rdx
shl eax, 8
or r9d, eax
cmp rdx, rbx
jne 0x464963
mov r11d, 1
jmp 0x46496d
movzx eax, byte [rdx + rdi]
or r9d, eax
inc rdx
mov r10d, r9d
and r9d, 0x3f
cmp r8, r12
ja 0x464a14
mov rax, r10
shr rax, 0x12
and eax, 0x3f
movzx eax, byte [rsp + rax]
mov byte [rcx], al
mov rax, r10
shr rax, 0xc
and eax, 0x3f
movzx eax, byte [rsp + rax]
mov byte [rcx + 1], al
cmp r11, 1
jbe 0x4649b2
mov byte [rcx + 2], 0x3d
add rcx, 3
add r8, 3
jmp 0x4649ca
shr r10, 6
add rcx, 3
and r10d, 0x3f
add r8, 3
movzx eax, byte [rsp + r10]
mov byte [rcx - 1], al
test r11, r11
je 0x4649da
mov byte [rcx], 0x3d
inc rcx
inc r8
jmp 0x4649e8
movzx eax, byte [rsp + r9]
inc rcx
inc r8
mov byte [rcx - 1], al
cmp rdx, rbx
jb 0x464930
sub rcx, rsi
mov al, 1
mov qword [rbp], rcx
mov r12, qword [rsp + 0x50]
mov rbx, qword [rsp + 0x58]
mov rbp, qword [rsp + 0x60]
mov rsi, qword [rsp + 0x68]
add rsp, 0x40
pop rdi
ret
xor al, al
jmp 0x4649fa