Analysis

  • max time kernel
    120s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-11-2024 20:57

General

  • Target

    be5f3a41ef84efe97393c07dcac7162a516631ff1d22046ab4be6b222a50e477.exe

  • Size

    288KB

  • MD5

    124d87cc3f2c7e27222bf8c13e94b884

  • SHA1

    3043b032c75ec153dd015155e09ea7c54bd8c006

  • SHA256

    be5f3a41ef84efe97393c07dcac7162a516631ff1d22046ab4be6b222a50e477

  • SHA512

    09a4f6e8ed62d2debabc9e964440589276d708f34152f037f201f6dd516b68db2c09ae740b8911a5d21a249fe42b7fd4998a0f2695233e23004ad4907628d426

  • SSDEEP

    1536:fopUMphvcBESxGFVYguSXq/fiTvlATmeX4Z4R4H4i4/o9FKs0z2xoetEPnyexeyC:IPc98+guucz9/tBH3H3+n

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 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 1 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 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\be5f3a41ef84efe97393c07dcac7162a516631ff1d22046ab4be6b222a50e477.exe
    "C:\Users\Admin\AppData\Local\Temp\be5f3a41ef84efe97393c07dcac7162a516631ff1d22046ab4be6b222a50e477.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4992
    • C:\Users\Admin\guahiix.exe
      "C:\Users\Admin\guahiix.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
      • Suspicious use of WriteProcessMemory
      PID:3736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\guahiix.exe

    Filesize

    288KB

    MD5

    f0b826eb67290a3fbab1eadbc51f1741

    SHA1

    8a6af9b50e289a248567372d0263ab337200ec49

    SHA256

    0a918cc0283a16a0aac6d06e0f1a20500642385014bc908f5c9ade0b73e0bdd5

    SHA512

    67d6baaf54f1790f4607accf721cd637187a9c01263279e1c3a9d8eeadacf4ceccf6ad675ca5288a6c2200d0ecad431900cbc8a3958e30c48dd98ea7b04fb008

  • memory/3736-33-0x0000000000400000-0x0000000000439000-memory.dmp

    Filesize

    228KB

  • memory/3736-38-0x0000000000400000-0x0000000000439000-memory.dmp

    Filesize

    228KB

  • memory/4992-0-0x0000000000400000-0x0000000000439000-memory.dmp

    Filesize

    228KB

  • memory/4992-37-0x0000000000400000-0x0000000000439000-memory.dmp

    Filesize

    228KB