Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-12-2022 02:40

General

  • Target

    81f6316114e0a6220d4d387fb8b2913cfd6283610c77b1c2a4be39ab5754ff16.exe

  • Size

    324KB

  • MD5

    20d970d1de4ba4219d3d572c946cb642

  • SHA1

    8feb7ba6eabfc713b114793c8d9bf9a8c9bcc830

  • SHA256

    81f6316114e0a6220d4d387fb8b2913cfd6283610c77b1c2a4be39ab5754ff16

  • SHA512

    8f179068027864d9ea0dc8bae4446ec2bdb09564eeb1977965cd2c221f36b22861b363bccba130f293358d268041b93f82aeff2362ba60a03e2472cdb2ab4640

  • SSDEEP

    3072:lKYmMFjMIJqOifVqfug8xfu3YOUtCPgCr0bM2C2VxZx89bRsVM8fnkTgFG3zsUix:lK1aiJHG0s0bM2CEDV+8fnkSUut

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 55 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\81f6316114e0a6220d4d387fb8b2913cfd6283610c77b1c2a4be39ab5754ff16.exe
    "C:\Users\Admin\AppData\Local\Temp\81f6316114e0a6220d4d387fb8b2913cfd6283610c77b1c2a4be39ab5754ff16.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3284
    • C:\Users\Admin\kuuuqot.exe
      "C:\Users\Admin\kuuuqot.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4868

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\kuuuqot.exe

    Filesize

    324KB

    MD5

    a10a56a3c3af0b0a25407bad3d789654

    SHA1

    486dcb8cd98f605d956fa3abf888ca730604f43e

    SHA256

    0c0314a1fb134a1ffbdb1ec06f2898dccc467eb7fd69da14ba07f8a61854ac43

    SHA512

    61787b6197f1bd03e756cd4067458dbd1e5e16cb32f245a39524213b8f128a49dada31787ecb4418bdb8bb1f89451e01331c207aa124c1699c8f03f8a7d2e08c

  • C:\Users\Admin\kuuuqot.exe

    Filesize

    324KB

    MD5

    a10a56a3c3af0b0a25407bad3d789654

    SHA1

    486dcb8cd98f605d956fa3abf888ca730604f43e

    SHA256

    0c0314a1fb134a1ffbdb1ec06f2898dccc467eb7fd69da14ba07f8a61854ac43

    SHA512

    61787b6197f1bd03e756cd4067458dbd1e5e16cb32f245a39524213b8f128a49dada31787ecb4418bdb8bb1f89451e01331c207aa124c1699c8f03f8a7d2e08c

  • memory/3284-132-0x0000000000400000-0x0000000000451000-memory.dmp

    Filesize

    324KB

  • memory/3284-141-0x0000000000400000-0x0000000000451000-memory.dmp

    Filesize

    324KB

  • memory/4868-140-0x0000000000400000-0x0000000000451000-memory.dmp

    Filesize

    324KB

  • memory/4868-142-0x0000000000400000-0x0000000000451000-memory.dmp

    Filesize

    324KB