Analysis

  • max time kernel
    154s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 01:34

General

  • Target

    38d8cd199b4ff063a47f4919a89f97a95483852330ca3eaaaf6e28be6215c0ea.exe

  • Size

    255KB

  • MD5

    c8b1edc25dbd7dfe7578baedf9a63b2d

  • SHA1

    688a9f06f83463eab66f25cd3f279324d87a456a

  • SHA256

    38d8cd199b4ff063a47f4919a89f97a95483852330ca3eaaaf6e28be6215c0ea

  • SHA512

    03c862c3abc47e691c2fafc4fcb54b9d4d8be50ec75d82ba59715a9a5a05d4821e5123f702a1585abc1bc9f485c010edf9a34837f11d2b29b04150c656633c7d

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJ0:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIR

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 6 IoCs
  • UPX packed file 30 IoCs

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

  • Loads dropped DLL 6 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 13 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 14 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 21 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\38d8cd199b4ff063a47f4919a89f97a95483852330ca3eaaaf6e28be6215c0ea.exe
    "C:\Users\Admin\AppData\Local\Temp\38d8cd199b4ff063a47f4919a89f97a95483852330ca3eaaaf6e28be6215c0ea.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:1800
    • C:\Windows\SysWOW64\gtycmzxdsy.exe
      gtycmzxdsy.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:1108
      • C:\Windows\SysWOW64\eqnbfeba.exe
        C:\Windows\system32\eqnbfeba.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:1912
    • C:\Windows\SysWOW64\xapgvzwkprhtiwp.exe
      xapgvzwkprhtiwp.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1976
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c pxhnavzfxzxsv.exe
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:524
        • C:\Windows\SysWOW64\pxhnavzfxzxsv.exe
          pxhnavzfxzxsv.exe
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:612
    • C:\Windows\SysWOW64\eqnbfeba.exe
      eqnbfeba.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:2024
    • C:\Windows\SysWOW64\pxhnavzfxzxsv.exe
      pxhnavzfxzxsv.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:952
    • 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:1400
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:2032

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      255KB

      MD5

      9f6f8879aa14195229f9260e5e4fe6f4

      SHA1

      5febaafac044bf208037020adb3cf5e9be3dcbed

      SHA256

      dc6fd805eaa006c191230dd19c1990e530acf281adc4aa6ee91e2a5fcaefa421

      SHA512

      3a32bdef8a9fd10368284ce2685a4c0ae40d0518bcde72defe3be1de87e227036227873f53151460a01d3b17a6988362dfafd825584d3ab125764e5d98964b73

    • C:\Windows\SysWOW64\eqnbfeba.exe

      Filesize

      255KB

      MD5

      ac2bd0b0ef8cbeb53f42496a168deced

      SHA1

      3a8bba06e9db1742d677852b21f9bc12c0e9c86f

      SHA256

      99a23bc9b92d4956485c509ba831359db0a6253cdeebebc3f42eb2ec45a7a931

      SHA512

      4c471b5af7035ae70590fde4d7ec8d89a3bffa19994bbc1df5a20f200ef7c96c022191e622df78c002e3cb6ea2dd39814db4899a0dc1ff088eeacd26dc33cdf8

    • C:\Windows\SysWOW64\eqnbfeba.exe

      Filesize

      255KB

      MD5

      ac2bd0b0ef8cbeb53f42496a168deced

      SHA1

      3a8bba06e9db1742d677852b21f9bc12c0e9c86f

      SHA256

      99a23bc9b92d4956485c509ba831359db0a6253cdeebebc3f42eb2ec45a7a931

      SHA512

      4c471b5af7035ae70590fde4d7ec8d89a3bffa19994bbc1df5a20f200ef7c96c022191e622df78c002e3cb6ea2dd39814db4899a0dc1ff088eeacd26dc33cdf8

    • C:\Windows\SysWOW64\eqnbfeba.exe

      Filesize

      255KB

      MD5

      ac2bd0b0ef8cbeb53f42496a168deced

      SHA1

      3a8bba06e9db1742d677852b21f9bc12c0e9c86f

      SHA256

      99a23bc9b92d4956485c509ba831359db0a6253cdeebebc3f42eb2ec45a7a931

      SHA512

      4c471b5af7035ae70590fde4d7ec8d89a3bffa19994bbc1df5a20f200ef7c96c022191e622df78c002e3cb6ea2dd39814db4899a0dc1ff088eeacd26dc33cdf8

    • C:\Windows\SysWOW64\gtycmzxdsy.exe

      Filesize

      255KB

      MD5

      b56dce1a443f79c7d8b8cc0f55b959aa

      SHA1

      3b72f173a07a571e58e18edbba43f3f67cf99725

      SHA256

      2c94c134e1401a9630c345e9575b8cb5d52d20162afa1d141b417065311ab0f0

      SHA512

      bbee3a62d5ceb80577e562e2e1452df0dd1edde98297a1b3c649389ab743a6044ec026c9212a71992ff1accef001af0662a05443bb8b2b5b258d409188361b46

    • C:\Windows\SysWOW64\gtycmzxdsy.exe

      Filesize

      255KB

      MD5

      b56dce1a443f79c7d8b8cc0f55b959aa

      SHA1

      3b72f173a07a571e58e18edbba43f3f67cf99725

      SHA256

      2c94c134e1401a9630c345e9575b8cb5d52d20162afa1d141b417065311ab0f0

      SHA512

      bbee3a62d5ceb80577e562e2e1452df0dd1edde98297a1b3c649389ab743a6044ec026c9212a71992ff1accef001af0662a05443bb8b2b5b258d409188361b46

    • C:\Windows\SysWOW64\pxhnavzfxzxsv.exe

      Filesize

      255KB

      MD5

      63b537990b8ec95ffa14d21a2fd6da67

      SHA1

      40945b776791f2f75a5d63e384d06b9eb6cd7fe2

      SHA256

      b999ab8310d9976e56cd64e5a41b12e3139fcf01032797e6aea1c3d06ad5bba0

      SHA512

      1a33a7023b518b72c8805ef4968e788d14e3de28f7ceaa059b4f34e785dda5a1e128b3a2a4d431c4c19b95921c229fb4ec9675f7584980f285cc452a65384aa1

    • C:\Windows\SysWOW64\pxhnavzfxzxsv.exe

      Filesize

      255KB

      MD5

      63b537990b8ec95ffa14d21a2fd6da67

      SHA1

      40945b776791f2f75a5d63e384d06b9eb6cd7fe2

      SHA256

      b999ab8310d9976e56cd64e5a41b12e3139fcf01032797e6aea1c3d06ad5bba0

      SHA512

      1a33a7023b518b72c8805ef4968e788d14e3de28f7ceaa059b4f34e785dda5a1e128b3a2a4d431c4c19b95921c229fb4ec9675f7584980f285cc452a65384aa1

    • C:\Windows\SysWOW64\pxhnavzfxzxsv.exe

      Filesize

      255KB

      MD5

      63b537990b8ec95ffa14d21a2fd6da67

      SHA1

      40945b776791f2f75a5d63e384d06b9eb6cd7fe2

      SHA256

      b999ab8310d9976e56cd64e5a41b12e3139fcf01032797e6aea1c3d06ad5bba0

      SHA512

      1a33a7023b518b72c8805ef4968e788d14e3de28f7ceaa059b4f34e785dda5a1e128b3a2a4d431c4c19b95921c229fb4ec9675f7584980f285cc452a65384aa1

    • C:\Windows\SysWOW64\xapgvzwkprhtiwp.exe

      Filesize

      255KB

      MD5

      d0d7729661367c86b393f85ea4123743

      SHA1

      5afd63418e4bc3c5ccdfcaa0f0ba8093f6fc9ae9

      SHA256

      b77c4c14888911c36ea0762bfe1b396a6cf76c9477ab4883cecdcf09d6bc6cc7

      SHA512

      3574d1a0c19cd3b6431d49434ecc2db747adeeb1a0c0f64895930a4d46fda1c4f1cae93c4b7299239d8d9882886db59388d17d30703dfc25fb2ea5caaac5d5b2

    • C:\Windows\SysWOW64\xapgvzwkprhtiwp.exe

      Filesize

      255KB

      MD5

      d0d7729661367c86b393f85ea4123743

      SHA1

      5afd63418e4bc3c5ccdfcaa0f0ba8093f6fc9ae9

      SHA256

      b77c4c14888911c36ea0762bfe1b396a6cf76c9477ab4883cecdcf09d6bc6cc7

      SHA512

      3574d1a0c19cd3b6431d49434ecc2db747adeeb1a0c0f64895930a4d46fda1c4f1cae93c4b7299239d8d9882886db59388d17d30703dfc25fb2ea5caaac5d5b2

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\eqnbfeba.exe

      Filesize

      255KB

      MD5

      ac2bd0b0ef8cbeb53f42496a168deced

      SHA1

      3a8bba06e9db1742d677852b21f9bc12c0e9c86f

      SHA256

      99a23bc9b92d4956485c509ba831359db0a6253cdeebebc3f42eb2ec45a7a931

      SHA512

      4c471b5af7035ae70590fde4d7ec8d89a3bffa19994bbc1df5a20f200ef7c96c022191e622df78c002e3cb6ea2dd39814db4899a0dc1ff088eeacd26dc33cdf8

    • \Windows\SysWOW64\eqnbfeba.exe

      Filesize

      255KB

      MD5

      ac2bd0b0ef8cbeb53f42496a168deced

      SHA1

      3a8bba06e9db1742d677852b21f9bc12c0e9c86f

      SHA256

      99a23bc9b92d4956485c509ba831359db0a6253cdeebebc3f42eb2ec45a7a931

      SHA512

      4c471b5af7035ae70590fde4d7ec8d89a3bffa19994bbc1df5a20f200ef7c96c022191e622df78c002e3cb6ea2dd39814db4899a0dc1ff088eeacd26dc33cdf8

    • \Windows\SysWOW64\gtycmzxdsy.exe

      Filesize

      255KB

      MD5

      b56dce1a443f79c7d8b8cc0f55b959aa

      SHA1

      3b72f173a07a571e58e18edbba43f3f67cf99725

      SHA256

      2c94c134e1401a9630c345e9575b8cb5d52d20162afa1d141b417065311ab0f0

      SHA512

      bbee3a62d5ceb80577e562e2e1452df0dd1edde98297a1b3c649389ab743a6044ec026c9212a71992ff1accef001af0662a05443bb8b2b5b258d409188361b46

    • \Windows\SysWOW64\pxhnavzfxzxsv.exe

      Filesize

      255KB

      MD5

      63b537990b8ec95ffa14d21a2fd6da67

      SHA1

      40945b776791f2f75a5d63e384d06b9eb6cd7fe2

      SHA256

      b999ab8310d9976e56cd64e5a41b12e3139fcf01032797e6aea1c3d06ad5bba0

      SHA512

      1a33a7023b518b72c8805ef4968e788d14e3de28f7ceaa059b4f34e785dda5a1e128b3a2a4d431c4c19b95921c229fb4ec9675f7584980f285cc452a65384aa1

    • \Windows\SysWOW64\pxhnavzfxzxsv.exe

      Filesize

      255KB

      MD5

      63b537990b8ec95ffa14d21a2fd6da67

      SHA1

      40945b776791f2f75a5d63e384d06b9eb6cd7fe2

      SHA256

      b999ab8310d9976e56cd64e5a41b12e3139fcf01032797e6aea1c3d06ad5bba0

      SHA512

      1a33a7023b518b72c8805ef4968e788d14e3de28f7ceaa059b4f34e785dda5a1e128b3a2a4d431c4c19b95921c229fb4ec9675f7584980f285cc452a65384aa1

    • \Windows\SysWOW64\xapgvzwkprhtiwp.exe

      Filesize

      255KB

      MD5

      d0d7729661367c86b393f85ea4123743

      SHA1

      5afd63418e4bc3c5ccdfcaa0f0ba8093f6fc9ae9

      SHA256

      b77c4c14888911c36ea0762bfe1b396a6cf76c9477ab4883cecdcf09d6bc6cc7

      SHA512

      3574d1a0c19cd3b6431d49434ecc2db747adeeb1a0c0f64895930a4d46fda1c4f1cae93c4b7299239d8d9882886db59388d17d30703dfc25fb2ea5caaac5d5b2

    • memory/524-76-0x0000000000000000-mapping.dmp

    • memory/612-81-0x0000000000000000-mapping.dmp

    • memory/612-104-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/612-92-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/952-102-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/952-70-0x0000000000000000-mapping.dmp

    • memory/952-89-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1108-56-0x0000000000000000-mapping.dmp

    • memory/1108-99-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1108-86-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1108-90-0x0000000003C80000-0x0000000003D20000-memory.dmp

      Filesize

      640KB

    • memory/1400-84-0x0000000000000000-mapping.dmp

    • memory/1400-110-0x00000000713BD000-0x00000000713C8000-memory.dmp

      Filesize

      44KB

    • memory/1400-93-0x0000000072951000-0x0000000072954000-memory.dmp

      Filesize

      12KB

    • memory/1400-94-0x00000000703D1000-0x00000000703D3000-memory.dmp

      Filesize

      8KB

    • memory/1400-95-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1400-97-0x00000000713BD000-0x00000000713C8000-memory.dmp

      Filesize

      44KB

    • memory/1400-109-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1400-105-0x00000000713BD000-0x00000000713C8000-memory.dmp

      Filesize

      44KB

    • memory/1800-85-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1800-54-0x0000000075241000-0x0000000075243000-memory.dmp

      Filesize

      8KB

    • memory/1912-103-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1912-91-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1912-77-0x0000000000000000-mapping.dmp

    • memory/1976-60-0x0000000000000000-mapping.dmp

    • memory/1976-100-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1976-87-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/2024-65-0x0000000000000000-mapping.dmp

    • memory/2024-101-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/2024-88-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/2032-107-0x0000000000000000-mapping.dmp

    • memory/2032-108-0x000007FEFBE61000-0x000007FEFBE63000-memory.dmp

      Filesize

      8KB