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Analysis

  • max time kernel
    98s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2022, 00:57

General

  • Target

    b841d11d7d29a9a5daade263e3ebe1696d5a04cd1515dc1f16e009e9a508b80a.dll

  • Size

    472KB

  • MD5

    6e3822811ba96fcd3b60efd611190ac6

  • SHA1

    2512580dc7747a3511b1f0cd603fab1ca493770b

  • SHA256

    b841d11d7d29a9a5daade263e3ebe1696d5a04cd1515dc1f16e009e9a508b80a

  • SHA512

    7f57d7c68ea2c3f7dcb7bd980a47263697f33597b11cc343f1d0232fe0e4c97f7a47b8a166ef9566aa7bfcd55f3d960ffac95311236cb6577bed5677142d6ecf

  • SSDEEP

    12288:VejaCF02l0HV6Ih/DVRIAyKwxMUyAREA81:maCF0xDVRFKMUyARnE

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Modifies Internet Explorer settings 1 TTPs 35 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b841d11d7d29a9a5daade263e3ebe1696d5a04cd1515dc1f16e009e9a508b80a.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1600
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\b841d11d7d29a9a5daade263e3ebe1696d5a04cd1515dc1f16e009e9a508b80a.dll
      2⤵
      • Adds Run key to start application
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      PID:1156
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1868
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1868 CREDAT:275457 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:1776

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\FMPWW1AK.txt

    Filesize

    608B

    MD5

    c4e850f1402ac0bbc2c07e14439974b8

    SHA1

    aaeb0a15cf49ae66a1c8a7b0ade3601ac4be68fa

    SHA256

    a3d0450cd45a81a53398516a697420db299c9627756b9f1c106c55733b242b15

    SHA512

    da2a2c9f5344b80c325f159373213bbd95f7a65614e8fb62e7c8cb1dc27447978dc69b466cef9ac78e0a3c634a2a2771d9df84071ecc7fce8b755b5fb2d23b92

  • memory/1156-56-0x0000000076461000-0x0000000076463000-memory.dmp

    Filesize

    8KB

  • memory/1600-54-0x000007FEFBB51000-0x000007FEFBB53000-memory.dmp

    Filesize

    8KB