Analysis

  • max time kernel
    144s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    01-02-2022 08:52

General

  • Target

    ee42a34b83f4c27c57ebfa79f78d4702cdf5c845443b929b9e9d3246409aacca.exe

  • Size

    76KB

  • MD5

    1b0c09e2348b91bcb0b3f5310789863a

  • SHA1

    916420085c30d8b96a4bd93647803c0d662cce18

  • SHA256

    ee42a34b83f4c27c57ebfa79f78d4702cdf5c845443b929b9e9d3246409aacca

  • SHA512

    45c08923dfbb514bd6c3525d07f813954daa5254723b107e2d3ac8139366bb3304d6c681f64bb377c84cfd79a0f6f1844cc2edd68daf3901754b350b49da6e6e

Score
10/10

Malware Config

Extracted

Family

systembc

C2

141.255.166.149:4125

5.188.62.165:4125

Signatures

  • SystemBC

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

  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ee42a34b83f4c27c57ebfa79f78d4702cdf5c845443b929b9e9d3246409aacca.exe
    "C:\Users\Admin\AppData\Local\Temp\ee42a34b83f4c27c57ebfa79f78d4702cdf5c845443b929b9e9d3246409aacca.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:804
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {5A1461A0-2219-4DA9-AA95-694BF904D5CB} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:524
    • C:\ProgramData\kqcbpg\mdcnhh.exe
      C:\ProgramData\kqcbpg\mdcnhh.exe start
      2⤵
      • Executes dropped EXE
      PID:1340

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\kqcbpg\mdcnhh.exe
    MD5

    1b0c09e2348b91bcb0b3f5310789863a

    SHA1

    916420085c30d8b96a4bd93647803c0d662cce18

    SHA256

    ee42a34b83f4c27c57ebfa79f78d4702cdf5c845443b929b9e9d3246409aacca

    SHA512

    45c08923dfbb514bd6c3525d07f813954daa5254723b107e2d3ac8139366bb3304d6c681f64bb377c84cfd79a0f6f1844cc2edd68daf3901754b350b49da6e6e

  • C:\ProgramData\kqcbpg\mdcnhh.exe
    MD5

    1b0c09e2348b91bcb0b3f5310789863a

    SHA1

    916420085c30d8b96a4bd93647803c0d662cce18

    SHA256

    ee42a34b83f4c27c57ebfa79f78d4702cdf5c845443b929b9e9d3246409aacca

    SHA512

    45c08923dfbb514bd6c3525d07f813954daa5254723b107e2d3ac8139366bb3304d6c681f64bb377c84cfd79a0f6f1844cc2edd68daf3901754b350b49da6e6e

  • memory/804-54-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/804-55-0x0000000075341000-0x0000000075343000-memory.dmp
    Filesize

    8KB

  • memory/804-56-0x00000000002E0000-0x00000000002EA000-memory.dmp
    Filesize

    40KB

  • memory/1340-60-0x0000000000260000-0x000000000026A000-memory.dmp
    Filesize

    40KB