Analysis

  • max time kernel
    228s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 16:39

General

  • Target

    438e0c1d70994ba71cf01215068bbc4aa3a8b904230b1a013f9a676606616cd2.exe

  • Size

    255KB

  • MD5

    58ed188bab1917c868bcbe550899e403

  • SHA1

    3e3ff4a1643fed988f68046e3e6294b52c52737a

  • SHA256

    438e0c1d70994ba71cf01215068bbc4aa3a8b904230b1a013f9a676606616cd2

  • SHA512

    7aa3159cf3429f6446b62fc07ea281c0f9697e17aab2a3b56e341a88072daaca855b09c8280503a651c452fdf64dc74cf392e7602e2d1bebb6b93866e0505748

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJ6:1xlZam+akqx6YQJXcNlEHUIQeE3mmBID

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
  • Executes dropped EXE 5 IoCs
  • UPX packed file 29 IoCs

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

  • 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 4 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 12 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 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\438e0c1d70994ba71cf01215068bbc4aa3a8b904230b1a013f9a676606616cd2.exe
    "C:\Users\Admin\AppData\Local\Temp\438e0c1d70994ba71cf01215068bbc4aa3a8b904230b1a013f9a676606616cd2.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:268
    • C:\Windows\SysWOW64\wgbghqowby.exe
      wgbghqowby.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:2040
      • C:\Windows\SysWOW64\hjemwpfu.exe
        C:\Windows\system32\hjemwpfu.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1316
    • C:\Windows\SysWOW64\hjemwpfu.exe
      hjemwpfu.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:792
    • C:\Windows\SysWOW64\acndwtmiffeeh.exe
      acndwtmiffeeh.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1408
    • C:\Windows\SysWOW64\tnhvlhducwcwszo.exe
      tnhvlhducwcwszo.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1352
    • 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:944
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1592

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe

      Filesize

      255KB

      MD5

      353a5e9f193f7273e2fe0ef3713f199d

      SHA1

      771c9d07949a8f66d03aaca498dfbadf02a65973

      SHA256

      7ecf353c664bc8de3d5ea8570b87afb8a246b32982f0080bf8e8be1d99e21228

      SHA512

      63a61cd089d2aaf223f9a6f0a6611c19fc55e176541cd98cd2d0fb9cde7b96f4791cf6eb58b028f8ac4a9793e07a2c6a6b4a4f0505eda67fd9ff460b80edcf21

    • C:\Windows\SysWOW64\acndwtmiffeeh.exe

      Filesize

      255KB

      MD5

      a6f3e5f57d317d2214e9302122255391

      SHA1

      1ab9922d8374d35a839640bc280e9e9dbbb58ff1

      SHA256

      3b054af7861e0867d818d56f8805c2202c9390d99254ae46dc569659c0e8e92e

      SHA512

      746e78c1afc98ad8b781bb8fa6cc03eb1c38c9c3cf63539b806a4c13bcb3bf9644cb105294addc5b74141a94eba325dd4f01b7fcd783fe66ff6c0e6fae0407f1

    • C:\Windows\SysWOW64\acndwtmiffeeh.exe

      Filesize

      255KB

      MD5

      a6f3e5f57d317d2214e9302122255391

      SHA1

      1ab9922d8374d35a839640bc280e9e9dbbb58ff1

      SHA256

      3b054af7861e0867d818d56f8805c2202c9390d99254ae46dc569659c0e8e92e

      SHA512

      746e78c1afc98ad8b781bb8fa6cc03eb1c38c9c3cf63539b806a4c13bcb3bf9644cb105294addc5b74141a94eba325dd4f01b7fcd783fe66ff6c0e6fae0407f1

    • C:\Windows\SysWOW64\hjemwpfu.exe

      Filesize

      255KB

      MD5

      2a985a04a480b13e8be326d8c6b99296

      SHA1

      80ef1d99693a09aefb187752cc82a89beff239d1

      SHA256

      57833fb50a7f7c714194c45aa46a768b15802196384d418925064679dc8c1fe2

      SHA512

      67248fc4c21e7922548b760d513639fa750bbf1932a8406dc1de12e9d6087132aafb4e9d5dc308aa439a692a2cea848a08487893f861a01500d81c851a1a56e6

    • C:\Windows\SysWOW64\hjemwpfu.exe

      Filesize

      255KB

      MD5

      2a985a04a480b13e8be326d8c6b99296

      SHA1

      80ef1d99693a09aefb187752cc82a89beff239d1

      SHA256

      57833fb50a7f7c714194c45aa46a768b15802196384d418925064679dc8c1fe2

      SHA512

      67248fc4c21e7922548b760d513639fa750bbf1932a8406dc1de12e9d6087132aafb4e9d5dc308aa439a692a2cea848a08487893f861a01500d81c851a1a56e6

    • C:\Windows\SysWOW64\hjemwpfu.exe

      Filesize

      255KB

      MD5

      2a985a04a480b13e8be326d8c6b99296

      SHA1

      80ef1d99693a09aefb187752cc82a89beff239d1

      SHA256

      57833fb50a7f7c714194c45aa46a768b15802196384d418925064679dc8c1fe2

      SHA512

      67248fc4c21e7922548b760d513639fa750bbf1932a8406dc1de12e9d6087132aafb4e9d5dc308aa439a692a2cea848a08487893f861a01500d81c851a1a56e6

    • C:\Windows\SysWOW64\tnhvlhducwcwszo.exe

      Filesize

      255KB

      MD5

      642ba89426ecd7cd10ff95619b5ee7ac

      SHA1

      083234450addc795fb0d683c6f3fa64ad3c4553e

      SHA256

      1b1090ce67c0c79e2a06570a0041b09c39810145904df107bb7b448020caf77a

      SHA512

      f8ac489790e213c454d0d22b392c5082655e51d54aae05f784e1b4b0c080027344333653b63679b238ac3af73413426ac69061bdf9402ea350b55724a473c910

    • C:\Windows\SysWOW64\tnhvlhducwcwszo.exe

      Filesize

      255KB

      MD5

      642ba89426ecd7cd10ff95619b5ee7ac

      SHA1

      083234450addc795fb0d683c6f3fa64ad3c4553e

      SHA256

      1b1090ce67c0c79e2a06570a0041b09c39810145904df107bb7b448020caf77a

      SHA512

      f8ac489790e213c454d0d22b392c5082655e51d54aae05f784e1b4b0c080027344333653b63679b238ac3af73413426ac69061bdf9402ea350b55724a473c910

    • C:\Windows\SysWOW64\wgbghqowby.exe

      Filesize

      255KB

      MD5

      b44059eb98208aaf480b9928047bb73f

      SHA1

      4e2622a6e7df6d0d8fc1c0896b6aa57d838acdc6

      SHA256

      f7e438ec4679bffcb7aae50921924a8511e767c06eae425a8bf1375ffc1b1358

      SHA512

      a2281ad09a27dacccc3eced27523885cc1d21d3545b7383af6d73596044c11dea32a17fffc499935e8d60a2ac5e3ba6c7154a7553bbc51ee0c29bc7de2afa8f3

    • C:\Windows\SysWOW64\wgbghqowby.exe

      Filesize

      255KB

      MD5

      b44059eb98208aaf480b9928047bb73f

      SHA1

      4e2622a6e7df6d0d8fc1c0896b6aa57d838acdc6

      SHA256

      f7e438ec4679bffcb7aae50921924a8511e767c06eae425a8bf1375ffc1b1358

      SHA512

      a2281ad09a27dacccc3eced27523885cc1d21d3545b7383af6d73596044c11dea32a17fffc499935e8d60a2ac5e3ba6c7154a7553bbc51ee0c29bc7de2afa8f3

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\acndwtmiffeeh.exe

      Filesize

      255KB

      MD5

      a6f3e5f57d317d2214e9302122255391

      SHA1

      1ab9922d8374d35a839640bc280e9e9dbbb58ff1

      SHA256

      3b054af7861e0867d818d56f8805c2202c9390d99254ae46dc569659c0e8e92e

      SHA512

      746e78c1afc98ad8b781bb8fa6cc03eb1c38c9c3cf63539b806a4c13bcb3bf9644cb105294addc5b74141a94eba325dd4f01b7fcd783fe66ff6c0e6fae0407f1

    • \Windows\SysWOW64\hjemwpfu.exe

      Filesize

      255KB

      MD5

      2a985a04a480b13e8be326d8c6b99296

      SHA1

      80ef1d99693a09aefb187752cc82a89beff239d1

      SHA256

      57833fb50a7f7c714194c45aa46a768b15802196384d418925064679dc8c1fe2

      SHA512

      67248fc4c21e7922548b760d513639fa750bbf1932a8406dc1de12e9d6087132aafb4e9d5dc308aa439a692a2cea848a08487893f861a01500d81c851a1a56e6

    • \Windows\SysWOW64\hjemwpfu.exe

      Filesize

      255KB

      MD5

      2a985a04a480b13e8be326d8c6b99296

      SHA1

      80ef1d99693a09aefb187752cc82a89beff239d1

      SHA256

      57833fb50a7f7c714194c45aa46a768b15802196384d418925064679dc8c1fe2

      SHA512

      67248fc4c21e7922548b760d513639fa750bbf1932a8406dc1de12e9d6087132aafb4e9d5dc308aa439a692a2cea848a08487893f861a01500d81c851a1a56e6

    • \Windows\SysWOW64\tnhvlhducwcwszo.exe

      Filesize

      255KB

      MD5

      642ba89426ecd7cd10ff95619b5ee7ac

      SHA1

      083234450addc795fb0d683c6f3fa64ad3c4553e

      SHA256

      1b1090ce67c0c79e2a06570a0041b09c39810145904df107bb7b448020caf77a

      SHA512

      f8ac489790e213c454d0d22b392c5082655e51d54aae05f784e1b4b0c080027344333653b63679b238ac3af73413426ac69061bdf9402ea350b55724a473c910

    • \Windows\SysWOW64\wgbghqowby.exe

      Filesize

      255KB

      MD5

      b44059eb98208aaf480b9928047bb73f

      SHA1

      4e2622a6e7df6d0d8fc1c0896b6aa57d838acdc6

      SHA256

      f7e438ec4679bffcb7aae50921924a8511e767c06eae425a8bf1375ffc1b1358

      SHA512

      a2281ad09a27dacccc3eced27523885cc1d21d3545b7383af6d73596044c11dea32a17fffc499935e8d60a2ac5e3ba6c7154a7553bbc51ee0c29bc7de2afa8f3

    • memory/268-83-0x00000000033B0000-0x0000000003450000-memory.dmp

      Filesize

      640KB

    • memory/268-58-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/268-55-0x0000000076931000-0x0000000076933000-memory.dmp

      Filesize

      8KB

    • memory/268-57-0x00000000033B0000-0x0000000003450000-memory.dmp

      Filesize

      640KB

    • memory/268-54-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/268-89-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/792-85-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/792-98-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/792-67-0x0000000000000000-mapping.dmp

    • memory/944-95-0x000000007160D000-0x0000000071618000-memory.dmp

      Filesize

      44KB

    • memory/944-91-0x0000000070621000-0x0000000070623000-memory.dmp

      Filesize

      8KB

    • memory/944-92-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/944-90-0x0000000072BA1000-0x0000000072BA4000-memory.dmp

      Filesize

      12KB

    • memory/944-88-0x0000000000000000-mapping.dmp

    • memory/1316-87-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1316-79-0x0000000000000000-mapping.dmp

    • memory/1316-100-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1352-84-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1352-97-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1352-63-0x0000000000000000-mapping.dmp

    • memory/1408-71-0x0000000000000000-mapping.dmp

    • memory/1408-86-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1408-99-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1592-103-0x000007FEFC0B1000-0x000007FEFC0B3000-memory.dmp

      Filesize

      8KB

    • memory/1592-102-0x0000000000000000-mapping.dmp

    • memory/2040-59-0x0000000000000000-mapping.dmp

    • memory/2040-96-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/2040-82-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB