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Analysis

  • max time kernel
    148s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-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
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 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 7 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 47 IoCs
  • Suspicious use of SendNotifyMessage 37 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\3e7da65e4464100fe04628d920e52f38.exe
    "C:\Users\Admin\AppData\Local\Temp\3e7da65e4464100fe04628d920e52f38.exe"
    1⤵
    • Loads dropped DLL
    • 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:2060
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Windows\mydoc.rtf"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2572
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:3020
      • C:\Windows\SysWOW64\edfabvqhrebvt.exe
        edfabvqhrebvt.exe
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2860
      • C:\Windows\SysWOW64\kqwjvrme.exe
        kqwjvrme.exe
        2⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2712
      • C:\Windows\SysWOW64\sktveiediwxpzvs.exe
        sktveiediwxpzvs.exe
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2832
      • C:\Windows\SysWOW64\srddkjwtoe.exe
        srddkjwtoe.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
        • Loads dropped DLL
        • 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:2700
    • C:\Windows\SysWOW64\kqwjvrme.exe
      C:\Windows\system32\kqwjvrme.exe
      1⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1980
    • C:\Windows\explorer.exe
      explorer.exe
      1⤵
      • Modifies Installed Components in the registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2520

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\SysWOW64\kqwjvrme.exe

      Filesize

      92KB

      MD5

      6662b185f19fbf697c56a25c92de7961

      SHA1

      0df0c0df0de3724258df2549c583e3c934aca726

      SHA256

      c11edb9e97848e20319fba876d9382c7193f68323eff1f7ed805bb04303bdc86

      SHA512

      c6e2cb83f68a63ca299dae843d2697d41dab8b565fb4005755b0d255b388779b6c1dad97375009c995f0a3d2e0acb4cc820090ca5dc24ee11e1a3de5b1a4921f

    • C:\Windows\SysWOW64\sktveiediwxpzvs.exe

      Filesize

      381KB

      MD5

      30aec9e0b33fbd99234328357879f812

      SHA1

      3c9d37139d4ccfe2b694afba9633170d0f510a92

      SHA256

      15aad0daaaeea2f1eb8d19a8999f42844b2885d6bef949f6787feba7dad46563

      SHA512

      2060f2cc8c90181dd0a9965f0ff3a94aece08c82c4a68454846f66778bc60dade3ba5ddc38be57311ff4a7bd78217b89a9cd09837eee4b5d9893277299dad415

    • C:\Windows\SysWOW64\srddkjwtoe.exe

      Filesize

      512KB

      MD5

      29c74030cca8b12cd9a566d4640ee188

      SHA1

      8b1ceef3e99ed542494fe4a6f90ec441c478f639

      SHA256

      2aca4f516a4d2fdf8257c6f5ebc01f3e3fb965b73250c1900c44bbb63a05012d

      SHA512

      244cddf273012f032a0be204c50b20ade5fa9f9904e81c7979a9283a5b65edd1ec52178796c91b6e92af88cbe5609616bb8bad84744b3d67b8e884ffdd449d63

    • \Windows\SysWOW64\kqwjvrme.exe

      Filesize

      512KB

      MD5

      320d3e217e43ee92dff683bb0dee5dfa

      SHA1

      48827e564d8a29ab3cc26ce8b5b1caa5b2910767

      SHA256

      6037f58573c3d2b7e26cd3672f7afa043a88d4bf2e2d9b9c624ca54e15b0f282

      SHA512

      24e2d1d0f4c89315182134d1d16998e5590758927e626204f1044e6029220b509bf7953dcc63deb68fd6106b151e5ee79ad107e66961f6fe8402223a471562bc

    • \Windows\SysWOW64\sktveiediwxpzvs.exe

      Filesize

      512KB

      MD5

      3ccc4ff45e8faf0f166525c1fbf0f5d9

      SHA1

      c989dff8b9a254d08646f73d06804ac33bdc7a0a

      SHA256

      3738d9c6c99221c52859e6297fa82c32e6e2ea3558a3fdb84d13ab25a069ad42

      SHA512

      8959a21fc9ff6ff3254adcf62c11ab2f0df4af3d5383e98807b2f93139d726352227ef53296578b5c124f51bdb091e302648dca8530c97579128ae0fb4fd72fb

    • memory/2060-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

    • memory/2520-81-0x0000000004320000-0x0000000004321000-memory.dmp

      Filesize

      4KB

    • memory/2520-84-0x0000000004320000-0x0000000004321000-memory.dmp

      Filesize

      4KB

    • memory/2520-89-0x00000000029D0000-0x00000000029E0000-memory.dmp

      Filesize

      64KB

    • memory/2572-46-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2572-47-0x000000007179D000-0x00000000717A8000-memory.dmp

      Filesize

      44KB

    • memory/2572-45-0x000000002F331000-0x000000002F332000-memory.dmp

      Filesize

      4KB

    • memory/2572-82-0x000000007179D000-0x00000000717A8000-memory.dmp

      Filesize

      44KB