Analysis

  • max time kernel
    15s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2023 02:59

General

  • Target

    4e6932d087ea67cc04844599c9ab1efe.exe

  • Size

    512KB

  • MD5

    4e6932d087ea67cc04844599c9ab1efe

  • SHA1

    f96a9dfb0eb8a0e16412fbd38e2dca3ec7d69a3a

  • SHA256

    aa7a29bcfdbcaf4b1ea6ba3dd0bcc1b9576b8062b4ad99e2f4249c46a49ba08e

  • SHA512

    0ba78a9de9f949528e86e6fabf2cd2baf81ee0a4fbb4e43f8a52c710f94125f3c853f633eeb87cd8fda8642c8bf0e043249b03942f9e54ea8af3a74e8e65b1c8

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6Z:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5m

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 4 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 13 IoCs
  • Drops file in Program Files directory 22 IoCs
  • Drops file in Windows directory 3 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\4e6932d087ea67cc04844599c9ab1efe.exe
    "C:\Users\Admin\AppData\Local\Temp\4e6932d087ea67cc04844599c9ab1efe.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:3268
    • C:\Windows\SysWOW64\pqtipufj.exe
      pqtipufj.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:212
    • 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:2820
    • C:\Windows\SysWOW64\tpyymsmckyiuc.exe
      tpyymsmckyiuc.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4688
    • C:\Windows\SysWOW64\wazzemfngvllwcs.exe
      wazzemfngvllwcs.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:736
    • C:\Windows\SysWOW64\eizakcslmv.exe
      eizakcslmv.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:1232
  • C:\Windows\SysWOW64\pqtipufj.exe
    C:\Windows\system32\pqtipufj.exe
    1⤵
    • Executes dropped EXE
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:4248

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\eizakcslmv.exe

    Filesize

    512KB

    MD5

    7f729a30e936a1050f4b3e24c5c85ae7

    SHA1

    2b661fb40a8b54a723a6f70959828e0eefdb75b6

    SHA256

    f62ed5c392b056d1fce56c6f4fe5e1ef4dab819f1a95b5aa96e4f2795a91d5c6

    SHA512

    5da4018f7c4eb8a4fc17f465c2d52c25f5101cbb987df5c8ba40afd12b82242a7f5b5763c2bb89281826db35ec0764bd1fc1cdf631fbb8ccf709c7da1577ba66

  • C:\Windows\SysWOW64\wazzemfngvllwcs.exe

    Filesize

    512KB

    MD5

    64e93982bbe230023733d5454a98706d

    SHA1

    977e77267e06e660e4c073370f55fc9307ef0a6c

    SHA256

    af8135780fe3e79f401c24fff25f6457e11ec6c0e3b744d6df3289bff6a05216

    SHA512

    b0f36f69c31ace31e1951d34821827360cc3140a38292365e1102c25a600eabd86fd8fae552b901134258d88335a18175584d0b2bc9bc0230e2433506daad90b

  • memory/2820-54-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-48-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-43-0x00007FFF72B90000-0x00007FFF72BA0000-memory.dmp

    Filesize

    64KB

  • memory/2820-50-0x00007FFF707B0000-0x00007FFF707C0000-memory.dmp

    Filesize

    64KB

  • memory/2820-52-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-44-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-56-0x00007FFF707B0000-0x00007FFF707C0000-memory.dmp

    Filesize

    64KB

  • memory/2820-57-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-55-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-53-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-51-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-49-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-47-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-45-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-162-0x00007FFF72B90000-0x00007FFF72BA0000-memory.dmp

    Filesize

    64KB

  • memory/2820-46-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-41-0x00007FFF72B90000-0x00007FFF72BA0000-memory.dmp

    Filesize

    64KB

  • memory/2820-40-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-38-0x00007FFF72B90000-0x00007FFF72BA0000-memory.dmp

    Filesize

    64KB

  • memory/2820-37-0x00007FFF72B90000-0x00007FFF72BA0000-memory.dmp

    Filesize

    64KB

  • memory/2820-42-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-39-0x00007FFF72B90000-0x00007FFF72BA0000-memory.dmp

    Filesize

    64KB

  • memory/2820-140-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-164-0x00007FFF72B90000-0x00007FFF72BA0000-memory.dmp

    Filesize

    64KB

  • memory/2820-163-0x00007FFF72B90000-0x00007FFF72BA0000-memory.dmp

    Filesize

    64KB

  • memory/2820-168-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-167-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-166-0x00007FFFB2B10000-0x00007FFFB2D05000-memory.dmp

    Filesize

    2.0MB

  • memory/2820-165-0x00007FFF72B90000-0x00007FFF72BA0000-memory.dmp

    Filesize

    64KB

  • memory/3268-0-0x0000000000400000-0x0000000000496000-memory.dmp

    Filesize

    600KB