Analysis

  • max time kernel
    106s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 17:15

General

  • Target

    62714a724abbfc87f6d3e46a446d5fbf.exe

  • Size

    32KB

  • MD5

    62714a724abbfc87f6d3e46a446d5fbf

  • SHA1

    eacf4b82e080c80d1bd121bcdfc35c52a28b4f0e

  • SHA256

    a62751453618735964f32c88d8dbf08d5e27d17b3109a2bb48a15f4ad661a372

  • SHA512

    b4f2d8339309b6c742eb4b9027b4486b1b2dafa28c0287bd8a28df9265df7cab2dd7542e263faccc20992e8d6b89f293bae7728efb16961697706976c028e1d1

  • SSDEEP

    768:HqPzUdiJ8dayafVcCSWYVYnPrryFbnpoJo2qKc6ziFg:YLJ8dayaaupDobnpo2RGh

Score
10/10

Malware Config

Extracted

Family

systembc

C2

89.248.163.218:443

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\62714a724abbfc87f6d3e46a446d5fbf.exe
    "C:\Users\Admin\AppData\Local\Temp\62714a724abbfc87f6d3e46a446d5fbf.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:896
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {DAAB5A7F-41D5-40EE-8C99-ADFCB0002733} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1168
    • C:\ProgramData\wnakgbf\nxdok.exe
      C:\ProgramData\wnakgbf\nxdok.exe start
      2⤵
      • Executes dropped EXE
      PID:2044

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\ProgramData\wnakgbf\nxdok.exe

    Filesize

    32KB

    MD5

    62714a724abbfc87f6d3e46a446d5fbf

    SHA1

    eacf4b82e080c80d1bd121bcdfc35c52a28b4f0e

    SHA256

    a62751453618735964f32c88d8dbf08d5e27d17b3109a2bb48a15f4ad661a372

    SHA512

    b4f2d8339309b6c742eb4b9027b4486b1b2dafa28c0287bd8a28df9265df7cab2dd7542e263faccc20992e8d6b89f293bae7728efb16961697706976c028e1d1

  • C:\ProgramData\wnakgbf\nxdok.exe

    Filesize

    32KB

    MD5

    62714a724abbfc87f6d3e46a446d5fbf

    SHA1

    eacf4b82e080c80d1bd121bcdfc35c52a28b4f0e

    SHA256

    a62751453618735964f32c88d8dbf08d5e27d17b3109a2bb48a15f4ad661a372

    SHA512

    b4f2d8339309b6c742eb4b9027b4486b1b2dafa28c0287bd8a28df9265df7cab2dd7542e263faccc20992e8d6b89f293bae7728efb16961697706976c028e1d1

  • memory/896-54-0x0000000075E31000-0x0000000075E33000-memory.dmp

    Filesize

    8KB

  • memory/2044-56-0x0000000000000000-mapping.dmp