Analysis

  • max time kernel
    140s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-08-2023 16:23

General

  • Target

    d0861b2aed04474e7e0f524c0cf6f8495494fc509b0fb8dc94d89dd1dcbacc5e_JC.dll

  • Size

    5.8MB

  • MD5

    bb4e3b588aedce8e203361b0879d9113

  • SHA1

    1b7161fe8b076b9bd5eea6652a5b7f9e329b242e

  • SHA256

    d0861b2aed04474e7e0f524c0cf6f8495494fc509b0fb8dc94d89dd1dcbacc5e

  • SHA512

    53f1df93fa7868a215aae133c528eb0d4f32a1404909dbd836ae21fdc0d53ad56e6ac03ffea8948898cb6ff98f8cf23bebc84a1488e6dc4ea162ab34aeb45ea9

  • SSDEEP

    98304:hqxMdwv65XzQ7bbf2ptVi58VQV6mS+O17/8s7WUpi7epveUN97lU0EpE7rbTgQ:MSKStQ72pPVA6L+DsqwiBsuaX

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\d0861b2aed04474e7e0f524c0cf6f8495494fc509b0fb8dc94d89dd1dcbacc5e_JC.dll,#1
    1⤵
    • Blocklisted process makes network request
    • Suspicious behavior: EnumeratesProcesses
    PID:1548

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1548-134-0x00007FF8C6F50000-0x00007FF8C79A7000-memory.dmp

    Filesize

    10.3MB

  • memory/1548-133-0x00007FF8E4AF0000-0x00007FF8E4AF2000-memory.dmp

    Filesize

    8KB

  • memory/1548-135-0x00007FF8E4B00000-0x00007FF8E4B02000-memory.dmp

    Filesize

    8KB

  • memory/1548-136-0x00007FF8E39D0000-0x00007FF8E39D2000-memory.dmp

    Filesize

    8KB

  • memory/1548-137-0x00007FF8E3DD0000-0x00007FF8E3DD2000-memory.dmp

    Filesize

    8KB

  • memory/1548-138-0x00007FF8E22E0000-0x00007FF8E22E2000-memory.dmp

    Filesize

    8KB

  • memory/1548-139-0x00007FF8E22F0000-0x00007FF8E22F2000-memory.dmp

    Filesize

    8KB

  • memory/1548-141-0x00007FF8E4B10000-0x00007FF8E4B12000-memory.dmp

    Filesize

    8KB

  • memory/1548-142-0x00007FF8C6F50000-0x00007FF8C79A7000-memory.dmp

    Filesize

    10.3MB