Analysis

  • max time kernel
    46s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    09/05/2022, 07:50

General

  • Target
    fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe
  • Size 692KB
  • Sample220509-jpctdsfeem
  • SHA256 fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Family
  • arkei

Botnet
  • Default

C2
  • http://62.204.41.69/p8jG9WvgbE.php

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe
    "C:\Users\Admin\AppData\Local\Temp\fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1628
    • C:\Users\Admin\AppData\Local\Temp\dcaqbmme.exe
      "C:\Users\Admin\AppData\Local\Temp\dcaqbmme.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1036
    • C:\Users\Admin\AppData\Local\Temp\fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe
      "C:\Users\Admin\AppData\Local\Temp\fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe"
      2⤵
        PID:1004

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          dcaqbmme.exe

          • Path C:\Users\Admin\AppData\Local\Temp\dcaqbmme.exe
          • Size 324KB
          • SHA256 326923ce18fd7a9c8210697d8ffab62481db036588c12f05a21798fcf67bd9a6
          • MD5 SHA1 SHA512 SSDEEP

          dcaqbmme.exe

          • Path \Users\Admin\AppData\Local\Temp\dcaqbmme.exe
          • Size 324KB
          • SHA256 326923ce18fd7a9c8210697d8ffab62481db036588c12f05a21798fcf67bd9a6
          • MD5 SHA1 SHA512 SSDEEP

          dcaqbmme.exe

          • Path \Users\Admin\AppData\Local\Temp\dcaqbmme.exe
          • Size 324KB
          • SHA256 326923ce18fd7a9c8210697d8ffab62481db036588c12f05a21798fcf67bd9a6
          • MD5 SHA1 SHA512 SSDEEP

          memory/1004-65-0x0000000000400000-0x000000000043C000-memory.dmp

          memory/1628-56-0x0000000075EF1000-0x0000000075EF3000-memory.dmp

          memory/1628-64-0x0000000000AA0000-0x0000000000AA7000-memory.dmp