Analysis

  • max time kernel
    139s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/04/2024, 17:46

General

  • Target
    28135bb818682c71869768c1105e91595367c2f633c6e68b8c2ccb8611911972.exe
  • Size 16KB
  • Sample240419-wcczvaba83
  • SHA256 28135bb818682c71869768c1105e91595367c2f633c6e68b8c2ccb8611911972
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • systembc

C2
  • 45.140.147.91:4001

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 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\28135bb818682c71869768c1105e91595367c2f633c6e68b8c2ccb8611911972.exe
    "C:\Users\Admin\AppData\Local\Temp\28135bb818682c71869768c1105e91595367c2f633c6e68b8c2ccb8611911972.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:1740
  • C:\ProgramData\ihfrepo\obbvqlh.exe
    C:\ProgramData\ihfrepo\obbvqlh.exe start2
    1⤵
    • Executes dropped EXE
    PID:1692
  • C:\ProgramData\ihfrepo\obbvqlh.exe
    C:\ProgramData\ihfrepo\obbvqlh.exe start2
    1⤵
    • Executes dropped EXE
    PID:1412

Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        obbvqlh.exe

        • Path C:\ProgramData\ihfrepo\obbvqlh.exe
        • Size 16KB
        • SHA256 28135bb818682c71869768c1105e91595367c2f633c6e68b8c2ccb8611911972
        • MD5 SHA1 SHA512 SSDEEP