Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    05-06-2024 02:13

General

  • Target

    cc5bb638cb34cbd386a906b7708eb62e05e3fc991a20bd060e1d84f722d29ff1.exe

  • Size

    16KB

  • MD5

    c661a77c31f83c413a96b5537ad31989

  • SHA1

    8a5a47e39a9efa9dc4de447d2ae4cd5e375e3557

  • SHA256

    cc5bb638cb34cbd386a906b7708eb62e05e3fc991a20bd060e1d84f722d29ff1

  • SHA512

    b86e45d36d8566b51f932f660ee9c3d79cea1a2eb34a9f7da7b2ccc5e50c74f319e8005e43d719c5722ec148ddddf1351a7f9edc430888e572b3884d1610b1aa

  • SSDEEP

    384:rC+AHNZw/WnlrobdglGbLMoy+yG+yir1dV:r0gklrydgQP1yO67V

Score
10/10

Malware Config

Extracted

Family

systembc

C2

clwtumberaero.cyou:4001

185.43.220.45:4001

Signatures

  • SystemBC

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

  • Executes dropped EXE 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cc5bb638cb34cbd386a906b7708eb62e05e3fc991a20bd060e1d84f722d29ff1.exe
    "C:\Users\Admin\AppData\Local\Temp\cc5bb638cb34cbd386a906b7708eb62e05e3fc991a20bd060e1d84f722d29ff1.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:2164
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {6F5BF438-31D6-4F52-B483-099E98347D9C} S-1-5-21-3691908287-3775019229-3534252667-1000:UOTHCPHQ\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:856
    • C:\ProgramData\mbhwt\vtaglq.exe
      C:\ProgramData\mbhwt\vtaglq.exe start2
      2⤵
      • Executes dropped EXE
      PID:2732
    • C:\ProgramData\mbhwt\vtaglq.exe
      C:\ProgramData\mbhwt\vtaglq.exe start2
      2⤵
      • Executes dropped EXE
      PID:348

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\ProgramData\mbhwt\vtaglq.exe

    Filesize

    16KB

    MD5

    c661a77c31f83c413a96b5537ad31989

    SHA1

    8a5a47e39a9efa9dc4de447d2ae4cd5e375e3557

    SHA256

    cc5bb638cb34cbd386a906b7708eb62e05e3fc991a20bd060e1d84f722d29ff1

    SHA512

    b86e45d36d8566b51f932f660ee9c3d79cea1a2eb34a9f7da7b2ccc5e50c74f319e8005e43d719c5722ec148ddddf1351a7f9edc430888e572b3884d1610b1aa