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Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/01/2024, 16:42

General

  • Target

    3e7da65e4464100fe04628d920e52f38.exe

  • Size

    512KB

  • MD5

    3e7da65e4464100fe04628d920e52f38

  • SHA1

    d29b7aabb30f052964e86c0e54687613e5729ecb

  • SHA256

    546e8920984bcb58f73d4d7c6a8a5cc1b201807da16ee7396a50c0ab13b622ba

  • SHA512

    11631b9e8dc4b271e70fd662e7738da94a939bdcb0a3c470c57eb7c7a6910fa508c7bf3248f48c0c3703098937a1b5f85b1e1c9d9dd2ac9e8437e6cccaecfcc9

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6U:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5d

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 2 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 13 IoCs
  • Drops file in Program Files directory 14 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\3e7da65e4464100fe04628d920e52f38.exe
    "C:\Users\Admin\AppData\Local\Temp\3e7da65e4464100fe04628d920e52f38.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:3152
    • C:\Windows\SysWOW64\cnbkkalrtz.exe
      cnbkkalrtz.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:1996
      • C:\Windows\SysWOW64\uxpcjekt.exe
        C:\Windows\system32\uxpcjekt.exe
        3⤵
        • 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:540
    • C:\Windows\SysWOW64\szdfgutqvzwqr.exe
      szdfgutqvzwqr.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2892
    • 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:4312
    • C:\Windows\SysWOW64\uxpcjekt.exe
      uxpcjekt.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:2604
    • C:\Windows\SysWOW64\lhqyaevhvfhpasm.exe
      lhqyaevhvfhpasm.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2472

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/3152-0-0x0000000000400000-0x0000000000496000-memory.dmp

    Filesize

    600KB

  • memory/4312-44-0x00007FFBF59D0000-0x00007FFBF59E0000-memory.dmp

    Filesize

    64KB

  • memory/4312-42-0x00007FFBF59D0000-0x00007FFBF59E0000-memory.dmp

    Filesize

    64KB

  • memory/4312-48-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-50-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-53-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-54-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-56-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-58-0x00007FFBF3810000-0x00007FFBF3820000-memory.dmp

    Filesize

    64KB

  • memory/4312-59-0x00007FFC33F00000-0x00007FFC33FCD000-memory.dmp

    Filesize

    820KB

  • memory/4312-57-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-55-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-52-0x00007FFBF3810000-0x00007FFBF3820000-memory.dmp

    Filesize

    64KB

  • memory/4312-51-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-49-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-47-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-46-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-45-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-43-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-41-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-37-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-38-0x00007FFBF59D0000-0x00007FFBF59E0000-memory.dmp

    Filesize

    64KB

  • memory/4312-36-0x00007FFBF59D0000-0x00007FFBF59E0000-memory.dmp

    Filesize

    64KB

  • memory/4312-35-0x00007FFBF59D0000-0x00007FFBF59E0000-memory.dmp

    Filesize

    64KB

  • memory/4312-126-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-127-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-128-0x00007FFC33F00000-0x00007FFC33FCD000-memory.dmp

    Filesize

    820KB

  • memory/4312-148-0x00007FFBF59D0000-0x00007FFBF59E0000-memory.dmp

    Filesize

    64KB

  • memory/4312-149-0x00007FFBF59D0000-0x00007FFBF59E0000-memory.dmp

    Filesize

    64KB

  • memory/4312-152-0x00007FFBF59D0000-0x00007FFBF59E0000-memory.dmp

    Filesize

    64KB

  • memory/4312-153-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-155-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-154-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-151-0x00007FFC35950000-0x00007FFC35B45000-memory.dmp

    Filesize

    2.0MB

  • memory/4312-150-0x00007FFBF59D0000-0x00007FFBF59E0000-memory.dmp

    Filesize

    64KB

  • memory/4312-156-0x00007FFC33F00000-0x00007FFC33FCD000-memory.dmp

    Filesize

    820KB