Analysis

  • max time kernel
    35s
  • 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
    26/12/2023, 13:09

General

  • Target

    7113b135e3aa1171c71a32f24713aa16.exe

  • Size

    512KB

  • MD5

    7113b135e3aa1171c71a32f24713aa16

  • SHA1

    016c2fe146252d75d849f96c5a1573eec6ebc6ad

  • SHA256

    ef606bab3ea486c3c7c48a11eb19867021ee3d42098802f7dffbb2fa241394cd

  • SHA512

    785780acdb1c880941b9ec713f0a7958403ec0779c5f550c988006501f30f728659c8f831db6a7c21a83347c6d72ac8b011d39e19aca42c5b814e6fbfd47e820

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6R:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5A

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 6 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\7113b135e3aa1171c71a32f24713aa16.exe
    "C:\Users\Admin\AppData\Local\Temp\7113b135e3aa1171c71a32f24713aa16.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:1480
    • C:\Windows\SysWOW64\equywjcdfmrsaou.exe
      equywjcdfmrsaou.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:112
    • 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:4300
    • C:\Windows\SysWOW64\jlgggsmttystt.exe
      jlgggsmttystt.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1868
    • C:\Windows\SysWOW64\ltihtmot.exe
      ltihtmot.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:2092
    • C:\Windows\SysWOW64\hmcyptufpa.exe
      hmcyptufpa.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:216
  • C:\Windows\SysWOW64\ltihtmot.exe
    C:\Windows\system32\ltihtmot.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:3632

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\equywjcdfmrsaou.exe

    Filesize

    92KB

    MD5

    6662b185f19fbf697c56a25c92de7961

    SHA1

    0df0c0df0de3724258df2549c583e3c934aca726

    SHA256

    c11edb9e97848e20319fba876d9382c7193f68323eff1f7ed805bb04303bdc86

    SHA512

    c6e2cb83f68a63ca299dae843d2697d41dab8b565fb4005755b0d255b388779b6c1dad97375009c995f0a3d2e0acb4cc820090ca5dc24ee11e1a3de5b1a4921f

  • C:\Windows\SysWOW64\equywjcdfmrsaou.exe

    Filesize

    512KB

    MD5

    09c4de1c492dc63f6acaa04b6ca47495

    SHA1

    821bccfd92d56304e54bc5207d2cdac65cf8889a

    SHA256

    2925bbeef348a3e209e038ab1cf2ad09d261df480f5239de64ef91d5b05a48aa

    SHA512

    20f1c6d528b8a8ee0330429c74c7f943d23f9218f07dc734b1be66b1b9504b7f09b13c7b6d28076c3d1fcfcc9454a6e444118e9dd4fc1036dacc4e80e1d150de

  • C:\Windows\SysWOW64\hmcyptufpa.exe

    Filesize

    512KB

    MD5

    187f39f834c726efdb8bb1cbafb5b084

    SHA1

    1b33ad2bfe55e49a3c80177a8416fc83042f39dd

    SHA256

    da97b8aa6da78c9f949192b675f2af7357d7bbb6d8f278326a0bdc14c7911fcb

    SHA512

    0d4950bf385db8824b052713f6cf8f75dc75a84485c2f4c762b8f7780df7a52bc4a4ae0e56344badf29f3dae607e2c6f9452334baa077edbce6b2cca0b2b1e1d

  • C:\Windows\SysWOW64\hmcyptufpa.exe

    Filesize

    381KB

    MD5

    30aec9e0b33fbd99234328357879f812

    SHA1

    3c9d37139d4ccfe2b694afba9633170d0f510a92

    SHA256

    15aad0daaaeea2f1eb8d19a8999f42844b2885d6bef949f6787feba7dad46563

    SHA512

    2060f2cc8c90181dd0a9965f0ff3a94aece08c82c4a68454846f66778bc60dade3ba5ddc38be57311ff4a7bd78217b89a9cd09837eee4b5d9893277299dad415

  • memory/1480-0-0x0000000000400000-0x0000000000496000-memory.dmp

    Filesize

    600KB

  • memory/4300-37-0x00007FFDBE3D0000-0x00007FFDBE3E0000-memory.dmp

    Filesize

    64KB

  • memory/4300-46-0x00007FFDFE350000-0x00007FFDFE545000-memory.dmp

    Filesize

    2.0MB

  • memory/4300-49-0x00007FFDFE350000-0x00007FFDFE545000-memory.dmp

    Filesize

    2.0MB

  • memory/4300-53-0x00007FFDBBF00000-0x00007FFDBBF10000-memory.dmp

    Filesize

    64KB

  • memory/4300-48-0x00007FFDFE350000-0x00007FFDFE545000-memory.dmp

    Filesize

    2.0MB

  • memory/4300-47-0x00007FFDFE350000-0x00007FFDFE545000-memory.dmp

    Filesize

    2.0MB

  • memory/4300-42-0x00007FFDFE350000-0x00007FFDFE545000-memory.dmp

    Filesize

    2.0MB

  • memory/4300-41-0x00007FFDBE3D0000-0x00007FFDBE3E0000-memory.dmp

    Filesize

    64KB

  • memory/4300-39-0x00007FFDFE350000-0x00007FFDFE545000-memory.dmp

    Filesize

    2.0MB

  • memory/4300-38-0x00007FFDBE3D0000-0x00007FFDBE3E0000-memory.dmp

    Filesize

    64KB

  • memory/4300-52-0x00007FFDFE350000-0x00007FFDFE545000-memory.dmp

    Filesize

    2.0MB

  • memory/4300-36-0x00007FFDFE350000-0x00007FFDFE545000-memory.dmp

    Filesize

    2.0MB

  • memory/4300-50-0x00007FFDBBF00000-0x00007FFDBBF10000-memory.dmp

    Filesize

    64KB

  • memory/4300-51-0x00007FFDFE350000-0x00007FFDFE545000-memory.dmp

    Filesize

    2.0MB

  • memory/4300-45-0x00007FFDBE3D0000-0x00007FFDBE3E0000-memory.dmp

    Filesize

    64KB

  • memory/4300-40-0x00007FFDFE350000-0x00007FFDFE545000-memory.dmp

    Filesize

    2.0MB

  • memory/4300-35-0x00007FFDBE3D0000-0x00007FFDBE3E0000-memory.dmp

    Filesize

    64KB

  • memory/4300-106-0x00007FFDFE350000-0x00007FFDFE545000-memory.dmp

    Filesize

    2.0MB

  • memory/4300-107-0x00007FFDFE350000-0x00007FFDFE545000-memory.dmp

    Filesize

    2.0MB

  • memory/4300-108-0x00007FFDFE350000-0x00007FFDFE545000-memory.dmp

    Filesize

    2.0MB

  • memory/4300-135-0x00007FFDFE350000-0x00007FFDFE545000-memory.dmp

    Filesize

    2.0MB

  • memory/4300-134-0x00007FFDFE350000-0x00007FFDFE545000-memory.dmp

    Filesize

    2.0MB

  • memory/4300-133-0x00007FFDBE3D0000-0x00007FFDBE3E0000-memory.dmp

    Filesize

    64KB

  • memory/4300-132-0x00007FFDBE3D0000-0x00007FFDBE3E0000-memory.dmp

    Filesize

    64KB

  • memory/4300-131-0x00007FFDBE3D0000-0x00007FFDBE3E0000-memory.dmp

    Filesize

    64KB

  • memory/4300-130-0x00007FFDBE3D0000-0x00007FFDBE3E0000-memory.dmp

    Filesize

    64KB