Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    30-03-2021 13:42

General

  • Target

    69f38d5d3e6f1a2d110cfff202678426e1e2007260d0fbb1d58fa5a080d40db6.exe

  • Size

    137KB

  • MD5

    d5927b50fee01b5fc563ece542455e23

  • SHA1

    15c86056e1c53a9aad940d29c614e22cfde541d1

  • SHA256

    69f38d5d3e6f1a2d110cfff202678426e1e2007260d0fbb1d58fa5a080d40db6

  • SHA512

    cb08f4a454686612b33a5f1dc62ce00f4209738b8ddcdb0da867871cf341cbef2937ba3913a8cc1a0643b079905e7c3c4cb75e4ea1f264acf51874f8261ea2da

Score
10/10

Malware Config

Extracted

Family

systembc

C2

178.20.41.149:4001

Signatures

  • SystemBC

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

  • Drops file in Windows directory 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\69f38d5d3e6f1a2d110cfff202678426e1e2007260d0fbb1d58fa5a080d40db6.exe
    "C:\Users\Admin\AppData\Local\Temp\69f38d5d3e6f1a2d110cfff202678426e1e2007260d0fbb1d58fa5a080d40db6.exe"
    1⤵
    • Drops file in Windows directory
    PID:776
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {E731CFEA-4823-4278-B07D-844F911A62FD} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1528
    • C:\Users\Admin\AppData\Local\Temp\69f38d5d3e6f1a2d110cfff202678426e1e2007260d0fbb1d58fa5a080d40db6.exe
      C:\Users\Admin\AppData\Local\Temp\69f38d5d3e6f1a2d110cfff202678426e1e2007260d0fbb1d58fa5a080d40db6.exe start
      2⤵
        PID:1380

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/776-2-0x00000000030E0000-0x00000000030F1000-memory.dmp
      Filesize

      68KB

    • memory/776-3-0x0000000076071000-0x0000000076073000-memory.dmp
      Filesize

      8KB

    • memory/776-4-0x0000000000020000-0x0000000000025000-memory.dmp
      Filesize

      20KB

    • memory/776-5-0x0000000000400000-0x0000000000407000-memory.dmp
      Filesize

      28KB

    • memory/1380-6-0x0000000000000000-mapping.dmp
    • memory/1380-7-0x0000000002DB0000-0x0000000002DC1000-memory.dmp
      Filesize

      68KB