Analysis

  • max time kernel
    143s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-08-2023 10:12

General

  • Target

    7ed9f4f6c6f6919e85b0f7b46ab95b356ca7702a1a3d415124753b4c77b12541exe_JC.dll

  • Size

    5.9MB

  • MD5

    23a665ea419877ed603914b0b1e3a319

  • SHA1

    9e44955c216d2b78176476c512d9a7c155734c2a

  • SHA256

    7ed9f4f6c6f6919e85b0f7b46ab95b356ca7702a1a3d415124753b4c77b12541

  • SHA512

    11dbfb00adb1af27b2bb12cdb1fff63c8ffc1b9a860e26a05640fff44d18d862ed7f3961a4a7c7f63619da2c31372fc15432f020e22d03e1c9e366b5cda529ae

  • SSDEEP

    98304:jKtUG8/JhKWuQOGZhGPB1lAiEKU7IHA7wayKz63OTP10tUzxCaIcnnj:jKtUXBkKna51llEvejJWoahzMHc

Malware Config

Extracted

Family

systembc

C2

5.42.65.67:4298

localhost.exchange:4298

Signatures

  • SystemBC

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

  • Blocklisted process makes network request 1 IoCs
  • VMProtect packed file 2 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\7ed9f4f6c6f6919e85b0f7b46ab95b356ca7702a1a3d415124753b4c77b12541exe_JC.dll,#1
    1⤵
    • Blocklisted process makes network request
    • Suspicious behavior: EnumeratesProcesses
    PID:4004

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4004-133-0x00007FFA36590000-0x00007FFA36F8C000-memory.dmp

    Filesize

    10.0MB

  • memory/4004-135-0x00007FFA54A80000-0x00007FFA54A82000-memory.dmp

    Filesize

    8KB

  • memory/4004-134-0x00007FFA54A70000-0x00007FFA54A72000-memory.dmp

    Filesize

    8KB

  • memory/4004-136-0x00007FFA539E0000-0x00007FFA539E2000-memory.dmp

    Filesize

    8KB

  • memory/4004-137-0x00007FFA539F0000-0x00007FFA539F2000-memory.dmp

    Filesize

    8KB

  • memory/4004-138-0x00007FFA52990000-0x00007FFA52992000-memory.dmp

    Filesize

    8KB

  • memory/4004-139-0x00007FFA529A0000-0x00007FFA529A2000-memory.dmp

    Filesize

    8KB

  • memory/4004-141-0x00007FFA54A90000-0x00007FFA54A92000-memory.dmp

    Filesize

    8KB

  • memory/4004-142-0x00007FFA36590000-0x00007FFA36F8C000-memory.dmp

    Filesize

    10.0MB

  • memory/4004-143-0x000002A77BEC0000-0x000002A77BF8D000-memory.dmp

    Filesize

    820KB