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Analysis

  • max time kernel
    152s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/11/2022, 15:21

General

  • Target

    5a8fc8967a5bc599dc9f5e056e9a264255d1b973d1de6883a9b9440cc4f1e26f.exe

  • Size

    260KB

  • MD5

    0467c66c52a0079bfac187038f0ec17e

  • SHA1

    5fbec7002be8e4402671f02f7b0a36fb3453b5d4

  • SHA256

    5a8fc8967a5bc599dc9f5e056e9a264255d1b973d1de6883a9b9440cc4f1e26f

  • SHA512

    14131dc67738f4b3b8c430c36fcf859621bca039c306996b738f093cff2f4edc7d75eebb3b06eb4bbd864a1962726a1839520b7ece2041310382495342a904af

  • SSDEEP

    3072:FgfAlNZovh25n/kZoSUjMqXnpWAkpAmTSrMaIOYt/jo7LAtPhjjtZnfHFEoWBfGs:FdDgTSrMaIl/jcLijfHFEHWzXvjT85R

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 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 52 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\5a8fc8967a5bc599dc9f5e056e9a264255d1b973d1de6883a9b9440cc4f1e26f.exe
    "C:\Users\Admin\AppData\Local\Temp\5a8fc8967a5bc599dc9f5e056e9a264255d1b973d1de6883a9b9440cc4f1e26f.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4572
    • C:\Users\Admin\huioke.exe
      "C:\Users\Admin\huioke.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:384

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\huioke.exe

    Filesize

    260KB

    MD5

    f26b639cd05dacd49415951b126dde9e

    SHA1

    5819016f15d8a90d768721d1b30d151f684dfc90

    SHA256

    693efe283ac933111095344bdb3a8218094059b583c5abbb1a27fa74e2cf312f

    SHA512

    2e7639257de696ae947af22bc1e0c978304f21dcbc1a7cde9805604214de5387867df3e7ad20209e4a2351ae17e6e28b3a9063fbe208cb0dc8844c1e28b9c806

  • C:\Users\Admin\huioke.exe

    Filesize

    260KB

    MD5

    f26b639cd05dacd49415951b126dde9e

    SHA1

    5819016f15d8a90d768721d1b30d151f684dfc90

    SHA256

    693efe283ac933111095344bdb3a8218094059b583c5abbb1a27fa74e2cf312f

    SHA512

    2e7639257de696ae947af22bc1e0c978304f21dcbc1a7cde9805604214de5387867df3e7ad20209e4a2351ae17e6e28b3a9063fbe208cb0dc8844c1e28b9c806