Analysis

  • max time kernel
    204s
  • max time network
    215s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2022 16:35

General

  • Target

    e78e04ad059b1cac13ed6bbde48aa7fe08e2a4b4fa0798dbf213475d8ad8bb38.exe

  • Size

    790KB

  • MD5

    712b004599fef1662c3a6c6064ad1d76

  • SHA1

    1057b1496e847b35b29723a8e14a65212e3cdae5

  • SHA256

    e78e04ad059b1cac13ed6bbde48aa7fe08e2a4b4fa0798dbf213475d8ad8bb38

  • SHA512

    c1ff57e268e151af8f94eaf06335f3e5299f76b61843ec66e45479a839223cda94075b05057b1dd310289524436b21dfd406b7b354ade08b9a3c1fd32db94e81

  • SSDEEP

    1536:+EfFNvtgmAl7z5dKY6yuJPW8K43w9NXOM1aRl/i6JWT0S9yXnBibnouy8gHn2JX:+YLmGO4W849NXO9RlK6gOxiDouto2N

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 18 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • UAC bypass 3 TTPs 3 IoCs
  • Windows security bypass 2 TTPs 4 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Sets file execution options in registry 2 TTPs 64 IoCs
  • UPX packed file 12 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 15 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Control Panel 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 24 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Modifies registry class 24 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • System policy modification 1 TTPs 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e78e04ad059b1cac13ed6bbde48aa7fe08e2a4b4fa0798dbf213475d8ad8bb38.exe
    "C:\Users\Admin\AppData\Local\Temp\e78e04ad059b1cac13ed6bbde48aa7fe08e2a4b4fa0798dbf213475d8ad8bb38.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5088
    • C:\Users\Admin\E696D64614\winlogon.exe
      "C:\Users\Admin\E696D64614\winlogon.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3152
      • C:\Users\Admin\E696D64614\winlogon.exe
        "C:\Users\Admin\E696D64614\winlogon.exe"
        3⤵
        • Modifies firewall policy service
        • Modifies security service
        • Modifies visibility of file extensions in Explorer
        • Modifies visiblity of hidden/system files in Explorer
        • UAC bypass
        • Windows security bypass
        • Disables RegEdit via registry modification
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Sets file execution options in registry
        • Windows security modification
        • Checks whether UAC is enabled
        • Modifies Control Panel
        • Modifies Internet Explorer settings
        • Modifies Internet Explorer start page
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • System policy modification
        PID:2520
  • C:\Program Files (x86)\Internet Explorer\ielowutil.exe
    "C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
    1⤵
      PID:4552
    • 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:1532
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1532 CREDAT:17410 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:4936

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\E696D64614\winlogon.exe

      Filesize

      790KB

      MD5

      712b004599fef1662c3a6c6064ad1d76

      SHA1

      1057b1496e847b35b29723a8e14a65212e3cdae5

      SHA256

      e78e04ad059b1cac13ed6bbde48aa7fe08e2a4b4fa0798dbf213475d8ad8bb38

      SHA512

      c1ff57e268e151af8f94eaf06335f3e5299f76b61843ec66e45479a839223cda94075b05057b1dd310289524436b21dfd406b7b354ade08b9a3c1fd32db94e81

    • C:\Users\Admin\E696D64614\winlogon.exe

      Filesize

      790KB

      MD5

      712b004599fef1662c3a6c6064ad1d76

      SHA1

      1057b1496e847b35b29723a8e14a65212e3cdae5

      SHA256

      e78e04ad059b1cac13ed6bbde48aa7fe08e2a4b4fa0798dbf213475d8ad8bb38

      SHA512

      c1ff57e268e151af8f94eaf06335f3e5299f76b61843ec66e45479a839223cda94075b05057b1dd310289524436b21dfd406b7b354ade08b9a3c1fd32db94e81

    • C:\Users\Admin\E696D64614\winlogon.exe

      Filesize

      790KB

      MD5

      712b004599fef1662c3a6c6064ad1d76

      SHA1

      1057b1496e847b35b29723a8e14a65212e3cdae5

      SHA256

      e78e04ad059b1cac13ed6bbde48aa7fe08e2a4b4fa0798dbf213475d8ad8bb38

      SHA512

      c1ff57e268e151af8f94eaf06335f3e5299f76b61843ec66e45479a839223cda94075b05057b1dd310289524436b21dfd406b7b354ade08b9a3c1fd32db94e81

    • memory/2520-144-0x0000000000000000-mapping.dmp

    • memory/2520-145-0x0000000000400000-0x000000000043F000-memory.dmp

      Filesize

      252KB

    • memory/2520-148-0x0000000000400000-0x000000000043F000-memory.dmp

      Filesize

      252KB

    • memory/2520-149-0x0000000000400000-0x000000000043F000-memory.dmp

      Filesize

      252KB

    • memory/2520-152-0x0000000000400000-0x000000000043F000-memory.dmp

      Filesize

      252KB

    • memory/3152-136-0x0000000000000000-mapping.dmp

    • memory/3152-142-0x0000000000400000-0x0000000000447000-memory.dmp

      Filesize

      284KB

    • memory/3152-143-0x0000000000400000-0x0000000000447000-memory.dmp

      Filesize

      284KB

    • memory/5088-135-0x0000000000400000-0x0000000000447000-memory.dmp

      Filesize

      284KB

    • memory/5088-139-0x0000000000400000-0x0000000000447000-memory.dmp

      Filesize

      284KB

    • memory/5088-132-0x0000000000400000-0x0000000000447000-memory.dmp

      Filesize

      284KB