Analysis

  • max time kernel
    158s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    07/06/2022, 10:46

General

  • Target
    49AFBB1CB5C5233A0ABB79E7011481B751EB3598C1A177E8BEFF7B5D746C9734.exe
  • Size 2.5MB
  • Sample220607-mt26mahfdk
  • SHA256 49afbb1cb5c5233a0abb79e7011481b751eb3598c1a177e8beff7b5d746c9734
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 5 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\49AFBB1CB5C5233A0ABB79E7011481B751EB3598C1A177E8BEFF7B5D746C9734.exe
    "C:\Users\Admin\AppData\Local\Temp\49AFBB1CB5C5233A0ABB79E7011481B751EB3598C1A177E8BEFF7B5D746C9734.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2724
    • C:\Users\Admin\AppData\Local\Temp\49AFBB1CB5C5233A0ABB79E7011481B751EB3598C1A177E8BEFF7B5D746C9734.exe
      "C:\Users\Admin\AppData\Local\Temp\49AFBB1CB5C5233A0ABB79E7011481B751EB3598C1A177E8BEFF7B5D746C9734.exe" dog 393282
      2⤵
        PID:3816

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          DreamApslop.dll

          • Path C:\Users\Admin\AppData\Local\Temp\plugin\DreamApslop.dll
          • Size 2.6MB
          • SHA256 22696773e65fbbf4d348f9190ff318bdf1b6dbfc4726033b5e35b2436bb5a9cc
          • MD5 SHA1 SHA512 SSDEEP