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Analysis

  • max time kernel
    120s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/09/2024, 08:11

General

  • Target

    2a39251d4e0d3c049c367ba43b1d3600N.exe

  • Size

    284KB

  • MD5

    2a39251d4e0d3c049c367ba43b1d3600

  • SHA1

    f7d8c1a977b3caea6c1cbc0baab3389ae66547ea

  • SHA256

    61f4765d3b25fd9b797e345d76a31af8c777f7a1982b68954638e78f530c47a0

  • SHA512

    2317022d6c2ad38f98a971c129ee908756beb20049286aac88e74aecfacacd27ccd78f66e1acaeab2cc82bccef3964b65bb827532625b7c19ceab1b82ae4b8bb

  • SSDEEP

    6144:R7FaiFChL5Rjda3P/fis6Do/uP+tFb84ly7ac:dFaiFCF5xI3PH96DoWPYb8n

Malware Config

Signatures

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

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 53 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2a39251d4e0d3c049c367ba43b1d3600N.exe
    "C:\Users\Admin\AppData\Local\Temp\2a39251d4e0d3c049c367ba43b1d3600N.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1244
    • C:\Users\Admin\faajo.exe
      "C:\Users\Admin\faajo.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4884

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\faajo.exe

    Filesize

    284KB

    MD5

    05db7ad106056744f10439a55efe2c63

    SHA1

    6785577a95d83c618b6397044230cbfab25d2cd9

    SHA256

    d95fc245397ff489f433d229c776511186af1255113001c0db5ff2a3a85c7baa

    SHA512

    b79a5b52295938c8b59f2706feea5fe69a651b7c8d34e773645f3c7c094ad9015ddbab1bba90d89b9bd54db97bb0d2b785d4eb1d10365d2c88e8ded5d7357e01