Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    21-12-2023 21:53

General

  • Target

    08c751edec7a3ae530ac34bd90e31445.exe

  • Size

    32KB

  • MD5

    08c751edec7a3ae530ac34bd90e31445

  • SHA1

    13dace12ba3b0c2733fd9a5c041e469627b4cffc

  • SHA256

    d7d2a183cb22b8327d1a46c2c5d13f45a488234fd51fa4b355b6b53144495db8

  • SHA512

    44e5d2f1bf28ce7fb21dff8ce92e34e34c74c7edb4ba8e6c809c2fe1d5134c97ecc84291367ce496dd4047d78a26bb70007c3be4b61a1b24ce966807d46bfd67

  • SSDEEP

    768:uZ+k6/WHzIyee1F0dPiXpwJo8eyhoJD3u3L3GG9:kG4zIyeGuIGC8eyhoB+b

Score
10/10

Malware Config

Extracted

Family

systembc

C2

80.85.84.79:4001

Signatures

  • SystemBC

    SystemBC is a proxy and remote administration tool first seen in 2019.

  • Executes dropped EXE 1 IoCs
  • Looks up external IP address via web service 4 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Uses Tor communications 1 TTPs

    Malware can proxy its traffic through Tor for more anonymity.

  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\08c751edec7a3ae530ac34bd90e31445.exe
    "C:\Users\Admin\AppData\Local\Temp\08c751edec7a3ae530ac34bd90e31445.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:2420
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {4652472E-3F3C-4625-BB4F-835600F569C8} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2680
    • C:\ProgramData\exgnh\anmnn.exe
      C:\ProgramData\exgnh\anmnn.exe start
      2⤵
      • Executes dropped EXE
      PID:2812

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\exgnh\anmnn.exe

    Filesize

    32KB

    MD5

    08c751edec7a3ae530ac34bd90e31445

    SHA1

    13dace12ba3b0c2733fd9a5c041e469627b4cffc

    SHA256

    d7d2a183cb22b8327d1a46c2c5d13f45a488234fd51fa4b355b6b53144495db8

    SHA512

    44e5d2f1bf28ce7fb21dff8ce92e34e34c74c7edb4ba8e6c809c2fe1d5134c97ecc84291367ce496dd4047d78a26bb70007c3be4b61a1b24ce966807d46bfd67