Analysis

  • max time kernel
    140s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-08-2023 20:30

General

  • Target

    23540c83cc4620f33d45dea691c6888b.dll

  • Size

    6.1MB

  • MD5

    23540c83cc4620f33d45dea691c6888b

  • SHA1

    bbdb961ad6fd8ad40cc3b8174242ca64f9a446a8

  • SHA256

    b17f6d86a9b9d63e841046b6b999e1197e81b2cf5cc6bcf376be9698e5d0f84b

  • SHA512

    e1a0bdded23488865ed658e53126c00856755a0d80d859ff021cd28eedb0e9ec7678812e61cb08434fcdefd5337f166383abee90d4f9057100ebb0d05cf8a9f5

  • SSDEEP

    98304:Oz3igQYVx9ZE5nYiF/VoazNgNEGlqlls7aJAUMLy6ynCU/W4+EBEA4oPNp:EygQWbe/VooNy10s2ZMLylTtrB

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\23540c83cc4620f33d45dea691c6888b.dll,#1
    1⤵
    • Blocklisted process makes network request
    • Suspicious behavior: EnumeratesProcesses
    PID:5032

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/5032-133-0x00007FFF63CA0000-0x00007FFF64773000-memory.dmp

    Filesize

    10.8MB

  • memory/5032-135-0x00007FFF81940000-0x00007FFF81942000-memory.dmp

    Filesize

    8KB

  • memory/5032-134-0x00007FFF81930000-0x00007FFF81932000-memory.dmp

    Filesize

    8KB

  • memory/5032-136-0x00007FFF80560000-0x00007FFF80562000-memory.dmp

    Filesize

    8KB

  • memory/5032-137-0x00007FFF80570000-0x00007FFF80572000-memory.dmp

    Filesize

    8KB

  • memory/5032-138-0x00007FFF7F3D0000-0x00007FFF7F3D2000-memory.dmp

    Filesize

    8KB

  • memory/5032-139-0x00007FFF7F3E0000-0x00007FFF7F3E2000-memory.dmp

    Filesize

    8KB

  • memory/5032-141-0x00007FFF81950000-0x00007FFF81952000-memory.dmp

    Filesize

    8KB

  • memory/5032-142-0x00007FFF63CA0000-0x00007FFF64773000-memory.dmp

    Filesize

    10.8MB