Analysis

  • max time kernel
    61s
  • max time network
    185s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    06-07-2021 06:24

General

  • Target

    825a13bbff9b5cc4d1f19d896aa31c64.exe

  • Size

    780KB

  • MD5

    825a13bbff9b5cc4d1f19d896aa31c64

  • SHA1

    a2026995b7871f84fbdd86f2596d51ce4f05f8b1

  • SHA256

    78047ece6080c704f47d91545e8cce53095342a4595b9e20ee5efeba4c679e41

  • SHA512

    ef52dcfecf5d916cb4eb17e03771d45d051c561c48564c114815a299cf77dd98d6547a1e2bfc3e133e2e97337b4bb258b776cadbe43a0b3beb0c987bb16d7197

Score
10/10

Malware Config

Extracted

Family

systembc

C2

185.215.113.32:4000

78.47.64.46:4000

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\825a13bbff9b5cc4d1f19d896aa31c64.exe
    "C:\Users\Admin\AppData\Local\Temp\825a13bbff9b5cc4d1f19d896aa31c64.exe"
    1⤵
    • Drops file in Windows directory
    PID:748
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {DE68806E-7E8F-4DCE-8AAC-F6D2437EC1E0} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1276
    • C:\Users\Admin\AppData\Local\Temp\825a13bbff9b5cc4d1f19d896aa31c64.exe
      C:\Users\Admin\AppData\Local\Temp\825a13bbff9b5cc4d1f19d896aa31c64.exe start
      2⤵
        PID:1252

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/748-59-0x0000000075A71000-0x0000000075A73000-memory.dmp
      Filesize

      8KB

    • memory/748-61-0x00000000003E0000-0x00000000003E5000-memory.dmp
      Filesize

      20KB

    • memory/748-60-0x00000000001C0000-0x00000000001C1000-memory.dmp
      Filesize

      4KB

    • memory/748-62-0x0000000000400000-0x00000000004C8000-memory.dmp
      Filesize

      800KB

    • memory/1252-63-0x0000000000000000-mapping.dmp
    • memory/1252-65-0x00000000002F0000-0x00000000002F1000-memory.dmp
      Filesize

      4KB

    • memory/1252-67-0x0000000000400000-0x00000000004C8000-memory.dmp
      Filesize

      800KB