Analysis

  • max time kernel
    139s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-12-2023 06:47

General

  • Target

    116b4384045499357f6f24f896623da8.exe

  • Size

    512KB

  • MD5

    116b4384045499357f6f24f896623da8

  • SHA1

    a45cb30244dd322c32b47946d4bbf18d49a9812d

  • SHA256

    1eb0d1a63f92f68b8cc3a843cdf5805560a4b6b2d94a8fbaf6b86e5cb6a2e776

  • SHA512

    04da26637f5c456750ece1f66032feaa9f65d0896dd71cba08a9d39c9dbf9f6adccf9321701ad277da9fd0967a890080960a9d6e4e7ee2df7088998fa771867a

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6k:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5L

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 1 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\116b4384045499357f6f24f896623da8.exe
    "C:\Users\Admin\AppData\Local\Temp\116b4384045499357f6f24f896623da8.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:2756
    • C:\Windows\SysWOW64\kegwdgmuyf.exe
      kegwdgmuyf.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:4040
      • C:\Windows\SysWOW64\geuavwtn.exe
        C:\Windows\system32\geuavwtn.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:4684
    • 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:2100
    • C:\Windows\SysWOW64\jdxhahcvfxxxj.exe
      jdxhahcvfxxxj.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:5056
    • C:\Windows\SysWOW64\geuavwtn.exe
      geuavwtn.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:2956
    • C:\Windows\SysWOW64\miwqeuztxsjxlfh.exe
      miwqeuztxsjxlfh.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1056

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2100-45-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-43-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-44-0x00007FFE37F10000-0x00007FFE37F20000-memory.dmp

    Filesize

    64KB

  • memory/2100-47-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-50-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-53-0x00007FFE358C0000-0x00007FFE358D0000-memory.dmp

    Filesize

    64KB

  • memory/2100-54-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-55-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-56-0x00007FFE358C0000-0x00007FFE358D0000-memory.dmp

    Filesize

    64KB

  • memory/2100-52-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-51-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-49-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-48-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-46-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-134-0x00007FFE37F10000-0x00007FFE37F20000-memory.dmp

    Filesize

    64KB

  • memory/2100-36-0x00007FFE37F10000-0x00007FFE37F20000-memory.dmp

    Filesize

    64KB

  • memory/2100-40-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-39-0x00007FFE37F10000-0x00007FFE37F20000-memory.dmp

    Filesize

    64KB

  • memory/2100-38-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-37-0x00007FFE37F10000-0x00007FFE37F20000-memory.dmp

    Filesize

    64KB

  • memory/2100-35-0x00007FFE37F10000-0x00007FFE37F20000-memory.dmp

    Filesize

    64KB

  • memory/2100-110-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-111-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-112-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-136-0x00007FFE37F10000-0x00007FFE37F20000-memory.dmp

    Filesize

    64KB

  • memory/2100-139-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-138-0x00007FFE77E90000-0x00007FFE78085000-memory.dmp

    Filesize

    2.0MB

  • memory/2100-137-0x00007FFE37F10000-0x00007FFE37F20000-memory.dmp

    Filesize

    64KB

  • memory/2100-135-0x00007FFE37F10000-0x00007FFE37F20000-memory.dmp

    Filesize

    64KB

  • memory/2756-0-0x0000000000400000-0x0000000000496000-memory.dmp

    Filesize

    600KB