Analysis

  • max time kernel
    74s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    20-01-2022 14:32

General

  • Target

    135.148.74.241_HCrypt/new/ExeToHta.txt.html

  • Size

    87KB

  • MD5

    5cdda3ce9f4ec5929f041ae1271d89cb

  • SHA1

    18ad6442b91e80f3023056f8e7c34d4d50990b35

  • SHA256

    d128aa6332948a130c38ebec9cb4a62b33aa9e0a530ed5c70f99e29a04b66c86

  • SHA512

    ace13ce14aa31046bfd942ad41264367b0141cbda25a14e491699d9413107a11d0ee57e6cccf7404a2233c69961b2072c243db59197f9774566fcc0b64a35784

Score
8/10

Malware Config

Signatures

  • Sets service image path in registry 2 TTPs
  • Modifies Internet Explorer settings 1 TTPs 29 IoCs
  • Modifies data under HKEY_USERS 41 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\135.148.74.241_HCrypt\new\ExeToHta.txt.html
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:320
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:320 CREDAT:17410 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:2624
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p
    1⤵
      PID:3864
    • C:\Windows\System32\WaaSMedicAgent.exe
      C:\Windows\System32\WaaSMedicAgent.exe 2d953570aa0d20d49fd7757e99cf1926 r47ChdGul0a9kBdCP4mQbw.0.1.0.0.0
      1⤵
      • Modifies data under HKEY_USERS
      PID:3728

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    2
    T1112

    Replay Monitor

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    Downloads