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Analysis

  • max time kernel
    153s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/10/2022, 19:40

General

  • Target

    d834108d5e9137cc01d85f3a3a073f1552397165c766daa570d8580e35dcc10d.exe

  • Size

    244KB

  • MD5

    918a1f09a7a7965c25e3754a613fcdff

  • SHA1

    6e93ff206b53223ae0a5c6b9b0003503e19bf21f

  • SHA256

    d834108d5e9137cc01d85f3a3a073f1552397165c766daa570d8580e35dcc10d

  • SHA512

    1f2624a5fcf54c4cdf45ac714bec44fbf1347fa8bd941d566b75db9efb15a4a717bbc34593cce0a5242d35512346facfa83ca8e989e1949274a05dbc9cf28d05

  • SSDEEP

    3072:hyY+mN+L1fyLFxoMV3CQw4I5coBBBT+42uxcYxG/4aqosAm+w9l:IYpNBIfBTAu+4aqosAm+wP

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
  • 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\d834108d5e9137cc01d85f3a3a073f1552397165c766daa570d8580e35dcc10d.exe
    "C:\Users\Admin\AppData\Local\Temp\d834108d5e9137cc01d85f3a3a073f1552397165c766daa570d8580e35dcc10d.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:4636
    • C:\Users\Admin\giuuz.exe
      "C:\Users\Admin\giuuz.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:4772

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\giuuz.exe

    Filesize

    244KB

    MD5

    7033a8207be1d6cfd0f41825c4e43011

    SHA1

    02e7396d08828eac8b8b1513c518056025b47983

    SHA256

    826174af689e6e834c4bca0520d8311a9ba08dc0d166684f60817106e29506d7

    SHA512

    648b666aa0ad7569727cbc4b0ef34291018f696088cfd1755409ff3309566fca9fa511b9cd4842ed0a3a1b73c15f0aa0543bdd93b30a9a31333b2f9810227344

  • C:\Users\Admin\giuuz.exe

    Filesize

    244KB

    MD5

    7033a8207be1d6cfd0f41825c4e43011

    SHA1

    02e7396d08828eac8b8b1513c518056025b47983

    SHA256

    826174af689e6e834c4bca0520d8311a9ba08dc0d166684f60817106e29506d7

    SHA512

    648b666aa0ad7569727cbc4b0ef34291018f696088cfd1755409ff3309566fca9fa511b9cd4842ed0a3a1b73c15f0aa0543bdd93b30a9a31333b2f9810227344