Analysis

  • max time kernel
    298s
  • max time network
    300s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/04/2024, 13:48

General

  • Target
    722aff7500dfce8737389cef11282becce37827df3ca9069b68bac66efb02287.exe
  • Size 856KB
  • Sample240416-q4e1mabe82
  • SHA256 722aff7500dfce8737389cef11282becce37827df3ca9069b68bac66efb02287
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • systembc

C2
  • asdasd08.com:4039

  • asdasd08.xyz:4039

Signatures

  • SystemBC

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

  • Executes dropped EXE 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Looks up external IP address via web service 2 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 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\722aff7500dfce8737389cef11282becce37827df3ca9069b68bac66efb02287.exe
    "C:\Users\Admin\AppData\Local\Temp\722aff7500dfce8737389cef11282becce37827df3ca9069b68bac66efb02287.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:1524
  • C:\ProgramData\msep\bnhbmn.exe
    C:\ProgramData\msep\bnhbmn.exe start
    1⤵
    • Executes dropped EXE
    PID:1920

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        bnhbmn.exe

        • Path C:\ProgramData\msep\bnhbmn.exe
        • Size 856KB
        • SHA256 722aff7500dfce8737389cef11282becce37827df3ca9069b68bac66efb02287
        • MD5 SHA1 SHA512 SSDEEP