Overview

overview

7

Static

static

acbf36d9c2...c9.exe

windows7_x64

7

acbf36d9c2...c9.exe

windows10-2004_x64

7

Analysis

  • max time kernel
    4265107s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    17/01/2022, 06:41

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General

  • Target
    acbf36d9c2468a7a08cdf9463629bdc9.exe
  • Size 1.5MB
  • Sample220117-hfsb2shban
  • SHA256 dca75ab5314cd4b2e9a5afa203862991c02ee5b2ed16b6a5b9667bc3a1a704eb
  • MD5 SHA1 SHA512
Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\acbf36d9c2468a7a08cdf9463629bdc9.exe
    "C:\Users\Admin\AppData\Local\Temp\acbf36d9c2468a7a08cdf9463629bdc9.exe"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Windows\SysWOW64\control.exe
      "C:\Windows\System32\control.exe" "C:\Users\Admin\AppData\Local\Temp\8JMMFZF.cpl",
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1772
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\system32\rundll32.exe" Shell32.dll,Control_RunDLL "C:\Users\Admin\AppData\Local\Temp\8JMMFZF.cpl",
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: GetForegroundWindowSpam
        PID:3844
  • C:\Windows\system32\MusNotification.exe
    C:\Windows\system32\MusNotification.exe
    1⤵
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    PID:4052

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/3016-130-0x0000000000270000-0x0000000000271000-memory.dmp
        Download

        memory/3016-131-0x0000000000270000-0x0000000000271000-memory.dmp
        Download

        memory/3844-137-0x0000000005190000-0x000000002FACD000-memory.dmp
        Download