Analysis

  • max time kernel
    85s
  • max time network
    103s
  • platform
    windows7_x64
  • resource
    win7-20220331-en
  • submitted
    03-04-2022 20:46

General

  • Target

    0f28f76319032731d48add6e6151dd43.exe

  • Size

    233KB

  • MD5

    0f28f76319032731d48add6e6151dd43

  • SHA1

    c3eb544fd54c82318b46de7db1480bc91160dbbf

  • SHA256

    f75ff7d2557cde3b8745dc14ac93ea6c6876449549ee3f135a47b523e1cb6c6f

  • SHA512

    c65c1da71400098c2baaa0281c0c6407955f5f54eb7d532304c085798ba52eeb0881704fcb1fa5c56702b7ea10236d2d12a64477efb8776bf4b89d7ca662b69b

Score
10/10

Malware Config

Extracted

Family

systembc

C2

104.144.69.123:4001

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\0f28f76319032731d48add6e6151dd43.exe
    "C:\Users\Admin\AppData\Local\Temp\0f28f76319032731d48add6e6151dd43.exe"
    1⤵
    • Drops file in Windows directory
    PID:1052
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {9F0675BB-A8E6-4C07-905A-8DB5E451366A} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:944
    • C:\Users\Admin\AppData\Local\Temp\0f28f76319032731d48add6e6151dd43.exe
      C:\Users\Admin\AppData\Local\Temp\0f28f76319032731d48add6e6151dd43.exe start
      2⤵
        PID:1716

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1052-54-0x000000000026F000-0x0000000000278000-memory.dmp

      Filesize

      36KB

    • memory/1052-55-0x0000000075F71000-0x0000000075F73000-memory.dmp

      Filesize

      8KB

    • memory/1052-56-0x000000000026F000-0x0000000000278000-memory.dmp

      Filesize

      36KB

    • memory/1052-57-0x0000000000240000-0x0000000000245000-memory.dmp

      Filesize

      20KB

    • memory/1052-58-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB

    • memory/1716-59-0x0000000000000000-mapping.dmp

    • memory/1716-60-0x000000000028F000-0x0000000000298000-memory.dmp

      Filesize

      36KB

    • memory/1716-62-0x000000000028F000-0x0000000000298000-memory.dmp

      Filesize

      36KB

    • memory/1716-63-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB