Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-11-2022 03:23

General

  • Target

    a1ec4376c13b0068c9a974f3576a47c67e19225748f91fac340e961d3961ed36.exe

  • Size

    224KB

  • MD5

    4428c6aa6f609d9a2effa332b9178c60

  • SHA1

    aa30dd66b4d67dde1bbaf037f07c959f45a8bfb2

  • SHA256

    a1ec4376c13b0068c9a974f3576a47c67e19225748f91fac340e961d3961ed36

  • SHA512

    500eb085b9165a7b71e1bd02197648817fb23090285989d0a642dc92bdd803c6259c4ca07bfa5d163acd57006558eff06eb172f7b90cb896670fecce5b6fb59f

  • SSDEEP

    3072:sRJ0TzFkLNzq4ZA4j88xrqzojYvebJNCpdAI9mifH6x0cdg/4:sRIRSs4K4j88xrqzKYmXCDjfHu0U

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 29 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1ec4376c13b0068c9a974f3576a47c67e19225748f91fac340e961d3961ed36.exe
    "C:\Users\Admin\AppData\Local\Temp\a1ec4376c13b0068c9a974f3576a47c67e19225748f91fac340e961d3961ed36.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5016
    • C:\Users\Admin\haecuuq.exe
      "C:\Users\Admin\haecuuq.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3488
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:376

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\haecuuq.exe

      Filesize

      224KB

      MD5

      4428c6aa6f609d9a2effa332b9178c60

      SHA1

      aa30dd66b4d67dde1bbaf037f07c959f45a8bfb2

      SHA256

      a1ec4376c13b0068c9a974f3576a47c67e19225748f91fac340e961d3961ed36

      SHA512

      500eb085b9165a7b71e1bd02197648817fb23090285989d0a642dc92bdd803c6259c4ca07bfa5d163acd57006558eff06eb172f7b90cb896670fecce5b6fb59f

    • C:\Users\Admin\haecuuq.exe

      Filesize

      224KB

      MD5

      4428c6aa6f609d9a2effa332b9178c60

      SHA1

      aa30dd66b4d67dde1bbaf037f07c959f45a8bfb2

      SHA256

      a1ec4376c13b0068c9a974f3576a47c67e19225748f91fac340e961d3961ed36

      SHA512

      500eb085b9165a7b71e1bd02197648817fb23090285989d0a642dc92bdd803c6259c4ca07bfa5d163acd57006558eff06eb172f7b90cb896670fecce5b6fb59f