Analysis

  • user interaction
    yes
  • max time kernel
    33s
  • max time network
    37s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    09/11/2026, 12:59

General

  • Target
    $uckyLocker.exe
  • Size 414KB
  • Sample261109-p74bysff63
  • SHA256 86e0eac8c5ce70c4b839ef18af5231b5f92e292b81e440193cdbdc7ed108049f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: HiddenTear, Cryptear

    HiddenTear aka Cryptear is an open-source ransomware available on Github since 2015, with many versions in the wild.

  • Detects HiddenTear Ransomware 1 IoCs
  • Disables Task Manager via registry modification
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\$uckyLocker.exe
    "C:\Users\Admin\AppData\Local\Temp\$uckyLocker.exe"
    1⤵
    • Sets desktop wallpaper using registry
    • System Location Discovery: System Language Discovery
    PID:4520
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1548

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/4520-0-0x00000000009D0000-0x0000000000A3E000-memory.dmp

          memory/4520-1-0x0000000005C30000-0x00000000061D4000-memory.dmp

          memory/4520-2-0x00000000054A0000-0x0000000005532000-memory.dmp

          memory/4520-3-0x0000000005630000-0x0000000005640000-memory.dmp

          memory/4520-4-0x0000000002EE0000-0x0000000002EEA000-memory.dmp

          memory/4520-21-0x0000000005630000-0x0000000005640000-memory.dmp

          memory/4520-22-0x0000000005630000-0x0000000005640000-memory.dmp