Analysis

  • max time kernel
    62s
  • max time network
    185s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    06-07-2021 07:11

General

  • Target

    a66e1fe634f16366d92177630ff2767d.exe

  • Size

    515KB

  • MD5

    a66e1fe634f16366d92177630ff2767d

  • SHA1

    77e6a598044ca41a16f72d136a85caab3e4e9c2f

  • SHA256

    9da99aa6d8ecde5212228db30e5ce4576ab78a7e8abb0dc04a9b7b99ca3237a2

  • SHA512

    6c35703ff405c37a173dcba627848148be19e33961d8d71d06362a11ce076ff0891044c51f9694d6f0a4cfcf262994232c96b4102aac9b1fa14bf4188b155f6b

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\a66e1fe634f16366d92177630ff2767d.exe
    "C:\Users\Admin\AppData\Local\Temp\a66e1fe634f16366d92177630ff2767d.exe"
    1⤵
    • Drops file in Windows directory
    PID:1092
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {69CCE3C6-528B-483A-B1C6-D7FFC99BB599} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1192
    • C:\Users\Admin\AppData\Local\Temp\a66e1fe634f16366d92177630ff2767d.exe
      C:\Users\Admin\AppData\Local\Temp\a66e1fe634f16366d92177630ff2767d.exe start
      2⤵
        PID:1584

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1092-59-0x00000000767B1000-0x00000000767B3000-memory.dmp
      Filesize

      8KB

    • memory/1092-60-0x00000000002B0000-0x00000000002B1000-memory.dmp
      Filesize

      4KB

    • memory/1092-61-0x00000000003F0000-0x00000000003F5000-memory.dmp
      Filesize

      20KB

    • memory/1092-62-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1584-63-0x0000000000000000-mapping.dmp
    • memory/1584-65-0x0000000000380000-0x0000000000381000-memory.dmp
      Filesize

      4KB

    • memory/1584-67-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB