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macsplin3.1.exe

Malicious Packer Malicious Library UPX PE32 PE File
  1. Resubmit sample
Category Machine Started Completed
FILE s1_win7_x6401 March 17, 2023, 9:38 a.m. March 17, 2023, 9:40 a.m.
Size 202.9KB
Type PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive
MD5 05ca94d88d462bef2458ec93ed42df23
SHA256 5a39f9dbd5c6cee8dce9d113c484d794045d72f3258e1959d34c14e673803260
CRC32 732DCC59
ssdeep 3072:2fY/TU9fE9PEtu9brXRHwio/QbIFBo93nmpeBTJ1N+Mmc/8CWbqQZU8hbpUVS:gYa6TrFH3kE92pe9Jx/ZWbqunhKVS
Yara
  • UPX_Zero - UPX packed file
  • Malicious_Library_Zero - Malicious_Library
  • IsPE32 - (no description)
  • PE_Header_Zero - PE File Signature

Name Response Post-Analysis Lookup
No hosts contacted.
IP Address Status Action
No hosts contacted.

Suricata Alerts

No Suricata Alerts

Suricata TLS

No Suricata TLS

Time & API Arguments Status Return Repeated

GlobalMemoryStatusEx

 1 1 0
section .ndata
Time & API Arguments Status Return Repeated

__exception__

 stacktrace: 
RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x76f49ed2
RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x76f49ea5

exception.symbol:
exception.exception_code: 0xc0000005
exception.address: 0xffd85738
registers.esp: 4258736
registers.edi: 0
registers.eax: 1968976824
registers.ebp: 4258744
registers.edx: 4292368184
registers.ebx: 2130567168
registers.esi: 0
registers.ecx: 0
1 0 0
Time & API Arguments Status Return Repeated

NtProtectVirtualMemory

 process_identifier: 2544
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
length: 4096
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x732a2000
process_handle: 0xffffffff
1 0 0

NtProtectVirtualMemory

 process_identifier: 2644
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 12288
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x02122000
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 2644
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x005a0000
allocation_type: 12289 (MEM_COMMIT|MEM_RESERVE)
process_handle: 0xffffffff
1 0 0
file C:\Users\test22\AppData\Local\Temp\qihkwiwr.exe
file C:\Users\test22\AppData\Roaming\rbwgplueyie\nwsclhqmvf.exe
file C:\Users\test22\AppData\Local\Temp\qihkwiwr.exe
file C:\Users\test22\AppData\Local\Temp\qihkwiwr.exe
reg_key HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\bktp reg_value C:\Users\test22\AppData\Roaming\rbwgplueyie\nwsclhqmvf.exe "C:\Users\test22\AppData\Local\Temp\qihkwiwr.exe" C:\Users\test22\AppD
Process injection Process 2644 called NtSetContextThread to modify thread in remote process 2700
Time & API Arguments Status Return Repeated

NtSetContextThread

 registers.eip: 1995571652
registers.esp: 4258836
registers.edi: 0
registers.eax: 808760
registers.ebp: 0
registers.edx: 0
registers.ebx: 2130567168
registers.esi: 0
registers.ecx: 0
thread_handle: 0x000000f8
process_identifier: 2700
1 0 0
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