Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    120s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2023, 06:49

General

  • Target

    2c36e0c04e62c8fb4abc889efd743c02.exe

  • Size

    512KB

  • MD5

    2c36e0c04e62c8fb4abc889efd743c02

  • SHA1

    d1c320844326e786b1da04c977b233341be1da6b

  • SHA256

    3718c09380d531cabdfad67dc6a1c71c2b0b6135dd42a7c0e924dd70b273168d

  • SHA512

    7ed944fc3da73dd3991f3820e26b9373c40def31db647faaf3d9631fc55c916e62c15463606a44904ff2a5a78aa656b0c69e5744d7d31d42572c46cd94d2866b

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6W:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm57

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 5 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 5 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 13 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 19 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 20 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2c36e0c04e62c8fb4abc889efd743c02.exe
    "C:\Users\Admin\AppData\Local\Temp\2c36e0c04e62c8fb4abc889efd743c02.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3180
    • C:\Windows\SysWOW64\xczkahdn.exe
      xczkahdn.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2552
    • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Windows\mydoc.rtf" /o ""
      2⤵
      • Drops file in Windows directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:5616
    • C:\Windows\SysWOW64\rylsciebbwxzn.exe
      rylsciebbwxzn.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3156
    • C:\Windows\SysWOW64\ujhzoszpgwqbkjv.exe
      ujhzoszpgwqbkjv.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:6140
    • C:\Windows\SysWOW64\fktkwnpvbe.exe
      fktkwnpvbe.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:324
  • C:\Windows\SysWOW64\xczkahdn.exe
    C:\Windows\system32\xczkahdn.exe
    1⤵
    • Executes dropped EXE
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:3300

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\SysWOW64\fktkwnpvbe.exe

    Filesize

    512KB

    MD5

    46c97cef30e445c59ac78e8370b609b7

    SHA1

    df0b71ae41987039832567a408f49e150f6dd5ad

    SHA256

    f6a2a55850020037493bc6ab91bb7b8ee5afb6ecd665d1814811ec64d5f560ee

    SHA512

    21c1ae1d13dd75dfa56337488b9123ca5b2dd2c700c22c204ac4a6bf33814c60490389572f78d2a27b9ead583f6c29d4318d0f44bef32a209fb50bfee2f30dca

  • C:\Windows\SysWOW64\rylsciebbwxzn.exe

    Filesize

    512KB

    MD5

    b2ad98a4e33b6051bd2b93042708b2f0

    SHA1

    033061123b618f6b68ad095af65145cc555f1798

    SHA256

    f9972d36a1abf5cd2b88aed6a18ac0f452974fb1698b28ada024fc0ad364d11b

    SHA512

    1dd8cddb22d6c7bb959d2752555d4a4097fc9bb3ac4f9afa46411c6dfd363f652f829b441708f1454f5519c51730a5c07bf8d848607a039d89479fbadfa857fc

  • C:\Windows\SysWOW64\ujhzoszpgwqbkjv.exe

    Filesize

    512KB

    MD5

    807a9dd96e14dd0f364d510e869006a5

    SHA1

    b8d9735b7bd56711a84faa481f995646fede4c16

    SHA256

    2fbd55366d6875165987788a206b26b6c6cce3b1436b2eda832058e51d11b8d9

    SHA512

    0471fa088463a5fe1bba777eaf67cc872bc35f9555176b58f264e649534e2caf7e9d8c794b2f3730a59337707a5931c18a26228875ec161d222b8ce0d78ddd9c

  • C:\Windows\SysWOW64\xczkahdn.exe

    Filesize

    512KB

    MD5

    6314aced9b945bfc1071656069b00a9a

    SHA1

    4a71fe4c51c0c47fde2005dd8ddb5a66183f8637

    SHA256

    6bec07a287a050632a01bcb7c9aed236889a02e990165b6f4a9830dd961dd150

    SHA512

    da01bbf98c0dca986183561b57138582329f5dc6ee405212c41933621bb869ee34ca5751b3911304b9032b6260689fd8ced7091f20fe8203bad0badfc1eda432

  • memory/3180-0-0x0000000000400000-0x0000000000496000-memory.dmp

    Filesize

    600KB

  • memory/5616-50-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-44-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-46-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-51-0x00007FF899550000-0x00007FF899560000-memory.dmp

    Filesize

    64KB

  • memory/5616-54-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-55-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-56-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-58-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-57-0x00007FF899550000-0x00007FF899560000-memory.dmp

    Filesize

    64KB

  • memory/5616-53-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-52-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-45-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-49-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-48-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-43-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

    Filesize

    64KB

  • memory/5616-47-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-42-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

    Filesize

    64KB

  • memory/5616-41-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-40-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-39-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

    Filesize

    64KB

  • memory/5616-37-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

    Filesize

    64KB

  • memory/5616-38-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

    Filesize

    64KB

  • memory/5616-114-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-139-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

    Filesize

    64KB

  • memory/5616-141-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-140-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

    Filesize

    2.0MB

  • memory/5616-138-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

    Filesize

    64KB

  • memory/5616-137-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

    Filesize

    64KB

  • memory/5616-136-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

    Filesize

    64KB