Analysis

  • max time kernel
    131s
  • max time network
    138s
  • 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 09:33

General

  • Target

    b2b82c1977c17aec7ba0074f56c0d61100e616a0ce72dab748ec4269db6c0793.dll

  • Size

    6.0MB

  • MD5

    62813c6cab9234e83949fcc563c33b57

  • SHA1

    474c9abc14fea035d0e80128dbd7260f0cbc42b2

  • SHA256

    b2b82c1977c17aec7ba0074f56c0d61100e616a0ce72dab748ec4269db6c0793

  • SHA512

    a29cdda3218566509cfc3d07b50bfe9ece45fd6a57cb12b649b283204191326e30746bc9d33c63b2e8281b65fd1f19cc79092b81e8cd67d593010c3574986542

  • SSDEEP

    98304:Yk/CgBuUFSDyJ6FqBh2Rvtu9+GdULsSuPbm5u1et8yDD27AadUEpnoj:DBumcyJ6O3LdCgPbSket8yDDTsGj

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\b2b82c1977c17aec7ba0074f56c0d61100e616a0ce72dab748ec4269db6c0793.dll,#1
    1⤵
    • Blocklisted process makes network request
    • Suspicious behavior: EnumeratesProcesses
    PID:4228

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4228-134-0x00007FF935330000-0x00007FF935DB4000-memory.dmp

    Filesize

    10.5MB

  • memory/4228-133-0x00007FF952EF0000-0x00007FF952EF2000-memory.dmp

    Filesize

    8KB

  • memory/4228-135-0x00007FF952F00000-0x00007FF952F02000-memory.dmp

    Filesize

    8KB

  • memory/4228-136-0x00007FF952AD0000-0x00007FF952AD2000-memory.dmp

    Filesize

    8KB

  • memory/4228-137-0x00007FF952AE0000-0x00007FF952AE2000-memory.dmp

    Filesize

    8KB

  • memory/4228-138-0x00007FF950980000-0x00007FF950982000-memory.dmp

    Filesize

    8KB

  • memory/4228-139-0x00007FF950990000-0x00007FF950992000-memory.dmp

    Filesize

    8KB

  • memory/4228-140-0x00007FF952F10000-0x00007FF952F12000-memory.dmp

    Filesize

    8KB

  • memory/4228-141-0x00007FF935330000-0x00007FF935DB4000-memory.dmp

    Filesize

    10.5MB