Analysis

  • max time kernel
    149s
  • max time network
    154s
  • 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 21:03

General

  • Target

    cff19385f9abc2d4c672c64c94ae4ebea2dd74e5abd17464f08809d3aebe6317.exe

  • Size

    368KB

  • MD5

    e0e79354e6b6234d87efdbf52c232657

  • SHA1

    b4f62408f5e143cb8a2d82cfdbc6b7d4021a5580

  • SHA256

    cff19385f9abc2d4c672c64c94ae4ebea2dd74e5abd17464f08809d3aebe6317

  • SHA512

    e9bfc75304e7f962f7ccacd46878b58a72782bc73a7d8960edf1dbfc129033206f3abae7f9331bd9fb428213caa4e343aabd6e7b195e992dbe6f4257fd3f918a

  • SSDEEP

    1536:s0PkF42Z/Hmkiw+667MIBf28zPJtC6IoD/QWgxektFAo11Sq:TPA42mLf2RxIfq

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 51 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\cff19385f9abc2d4c672c64c94ae4ebea2dd74e5abd17464f08809d3aebe6317.exe
    "C:\Users\Admin\AppData\Local\Temp\cff19385f9abc2d4c672c64c94ae4ebea2dd74e5abd17464f08809d3aebe6317.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4440
    • C:\Users\Admin\kaaumab.exe
      "C:\Users\Admin\kaaumab.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:2628

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\kaaumab.exe

    Filesize

    368KB

    MD5

    085baba020136d1986e3dcd522def4e9

    SHA1

    f55d2b2f851f07cbde11ff50f6e0e776e727a2eb

    SHA256

    f1950224be2df575fc65f65cbb7cc28dc8796b364c9b7ccb703b7c51610c50d3

    SHA512

    e19ddda6b5df02c1170a9bc3ee239c10b2e86df25d4da1f0d7a63c1edc14cf39bf725933f0f42014d0b029e50b0bb2066bf906dafb4c0baffc107d86098a122c