Analysis

  • max time kernel
    121s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    28-11-2021 21:32

General

  • Target

    aecd79e61e087039809b61fe69802c21.exe

  • Size

    296KB

  • MD5

    aecd79e61e087039809b61fe69802c21

  • SHA1

    3dd2487251cb032074b1e0ab9d2f51dc1441de93

  • SHA256

    240ee6db893981a6dd47ffc0932dcf343d09517e8aebc07dc712e6745ee59a27

  • SHA512

    d60b096f79063b28220f64222157c8639561d56565c955921824e43c6df086ae3886acec7ca70d290e331032009269e389cd8ad710d389e105fe3f02dce4ca92

Score
10/10

Malware Config

Extracted

Family

systembc

C2

178.20.41.173:4001

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\aecd79e61e087039809b61fe69802c21.exe
    "C:\Users\Admin\AppData\Local\Temp\aecd79e61e087039809b61fe69802c21.exe"
    1⤵
    • Drops file in Windows directory
    PID:1584
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {63B789F1-BE10-40C6-BD42-D2AA4846DBC6} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1280
    • C:\Users\Admin\AppData\Local\Temp\aecd79e61e087039809b61fe69802c21.exe
      C:\Users\Admin\AppData\Local\Temp\aecd79e61e087039809b61fe69802c21.exe start
      2⤵
        PID:1856

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1584-55-0x0000000001D7B000-0x0000000001D8C000-memory.dmp

      Filesize

      68KB

    • memory/1584-56-0x0000000074F21000-0x0000000074F23000-memory.dmp

      Filesize

      8KB

    • memory/1584-57-0x0000000000220000-0x0000000000225000-memory.dmp

      Filesize

      20KB

    • memory/1584-58-0x0000000000400000-0x0000000001C00000-memory.dmp

      Filesize

      24.0MB

    • memory/1856-59-0x0000000000000000-mapping.dmp

    • memory/1856-60-0x0000000001D7B000-0x0000000001D8C000-memory.dmp

      Filesize

      68KB

    • memory/1856-62-0x0000000000400000-0x0000000001C00000-memory.dmp

      Filesize

      24.0MB