Analysis

  • max time kernel
    186s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 21:03

General

  • Target

    7460505c406472e17992c33deb228d2a9f0691c5f1f4062f8fb6d0ff5ef9b606.exe

  • Size

    255KB

  • MD5

    78ea1e583aa099223934b0e9e03ce7f6

  • SHA1

    b45cc23a899bb492e4687662b53c8b1c040a9cb0

  • SHA256

    7460505c406472e17992c33deb228d2a9f0691c5f1f4062f8fb6d0ff5ef9b606

  • SHA512

    c27d8ed05c87b5c7dec91bb56da1718ed57b72d24b4c33eb11be7f586a5c95ca86d015d16d6da1cc4bc56a32c35728164b56a5db9ee1a1bdffbcd3d22d66eeb0

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJr:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIg

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 28 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 9 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\7460505c406472e17992c33deb228d2a9f0691c5f1f4062f8fb6d0ff5ef9b606.exe
    "C:\Users\Admin\AppData\Local\Temp\7460505c406472e17992c33deb228d2a9f0691c5f1f4062f8fb6d0ff5ef9b606.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:1728
    • C:\Windows\SysWOW64\gwyejoqlvb.exe
      gwyejoqlvb.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:1316
      • C:\Windows\SysWOW64\oehlsgjb.exe
        C:\Windows\system32\oehlsgjb.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:328
    • C:\Windows\SysWOW64\kmyrfcpfeqnaris.exe
      kmyrfcpfeqnaris.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1068
    • C:\Windows\SysWOW64\oehlsgjb.exe
      oehlsgjb.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:868
    • C:\Windows\SysWOW64\zuegorhzroeej.exe
      zuegorhzroeej.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1348
    • 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:584
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1980

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      255KB

      MD5

      71362953fc405f84c97a3dcaf10ad61a

      SHA1

      ecd4a26ac6e064a3bfa6e953094e8b907c677d6c

      SHA256

      eb01746e5c1e94cd203f839cb7b12afde2393c3fb1bc5fded2f63c7d6fcf7206

      SHA512

      298496e4b555716e6bcf5d01df9d2146919d13ba86c6d59cbccc6e8f66df06f07ec2f8de1b17b71668aee3f7acae3a46a2ad7d507efe45b57a6f445799148f4d

    • C:\Users\Admin\AppData\Roaming\UnlockCompare.doc.exe

      Filesize

      255KB

      MD5

      320f02ee328dbd631ade5b72d77989b9

      SHA1

      ac5ccc8a456ed7c5187d451f4b58cce4ae47ae2a

      SHA256

      006b72cdb03f3eacae79fb523427266d9498c114d63f42bf8be2a9935333e337

      SHA512

      4304ce6d217040cfe55ab962331f40bff23c3547534ee994fc6fa73f42d8580addef7488d254f8058110574e176b45dc2e7caffb868309bd589a7c592f842ccc

    • C:\Users\Admin\Desktop\WatchClose.doc.exe

      Filesize

      255KB

      MD5

      b3bbbbb85919d7f12ee81671b4ca021b

      SHA1

      a27e64068b312ea2b73f96802146ecb37e64231e

      SHA256

      4dbc004226edf6bd73df1afd702955b66a16a716752ef862672e2fa1c0a09175

      SHA512

      9978756a389e026e1d07c9f30c284c03ff26c0a5ea9939aeceed5c26cd8a2de6e4bc9bb699fa05039f629fa35a4015a6cfb5d039158637d8eb919c26d77eb832

    • C:\Windows\SysWOW64\gwyejoqlvb.exe

      Filesize

      255KB

      MD5

      264cd67f9b091450d0c02a30138d040b

      SHA1

      ea710ca17c7c65e334e7192a31e660efd2b94f55

      SHA256

      d9a64d4974a9ff0011b572cc293d507d746c4a64fe15fa0e9e20f7133e790aac

      SHA512

      38f969f43a1640c4b1310723f5e9f147d40cd195d9ad984cce40de398d8b606569b51a556edbba84403720ffd14ddb95deee7503c84aea06d8ce34ec13b2f981

    • C:\Windows\SysWOW64\gwyejoqlvb.exe

      Filesize

      255KB

      MD5

      264cd67f9b091450d0c02a30138d040b

      SHA1

      ea710ca17c7c65e334e7192a31e660efd2b94f55

      SHA256

      d9a64d4974a9ff0011b572cc293d507d746c4a64fe15fa0e9e20f7133e790aac

      SHA512

      38f969f43a1640c4b1310723f5e9f147d40cd195d9ad984cce40de398d8b606569b51a556edbba84403720ffd14ddb95deee7503c84aea06d8ce34ec13b2f981

    • C:\Windows\SysWOW64\kmyrfcpfeqnaris.exe

      Filesize

      255KB

      MD5

      34365157a38678052c73fe9e81aa035a

      SHA1

      493bf59f033f100b1c9c4b0561dd4e1d130d447a

      SHA256

      6b20a0e531a8ac290c0f1dc8f4be5208e15d2f4ec446a1918147494a6bf0e311

      SHA512

      589fddc45eba9df90245df52724d709dab6ac200b970d5674772c65c5c1776b8a899b61663f6d3c1edf4c0e20835c112d4429b7f04e089bc7824181bd9a1864c

    • C:\Windows\SysWOW64\kmyrfcpfeqnaris.exe

      Filesize

      255KB

      MD5

      34365157a38678052c73fe9e81aa035a

      SHA1

      493bf59f033f100b1c9c4b0561dd4e1d130d447a

      SHA256

      6b20a0e531a8ac290c0f1dc8f4be5208e15d2f4ec446a1918147494a6bf0e311

      SHA512

      589fddc45eba9df90245df52724d709dab6ac200b970d5674772c65c5c1776b8a899b61663f6d3c1edf4c0e20835c112d4429b7f04e089bc7824181bd9a1864c

    • C:\Windows\SysWOW64\oehlsgjb.exe

      Filesize

      255KB

      MD5

      29ab89459b034fe2005972204dfe2217

      SHA1

      5e3ecca259ef350e43d17201fd2e99b21517cce7

      SHA256

      692eb43516e5a79d257dca6b883f068ca712f55471caf2185b5d7b89db93ee16

      SHA512

      8bc89a2c9a405c5042f8feb10638f75d00d4a6bbcd7dd8c9fe656a5e37cbad4ba0b10d8dcb84a45a3fe0d9e94266aa58e3cd55963362531a5098d1f2054ff191

    • C:\Windows\SysWOW64\oehlsgjb.exe

      Filesize

      255KB

      MD5

      29ab89459b034fe2005972204dfe2217

      SHA1

      5e3ecca259ef350e43d17201fd2e99b21517cce7

      SHA256

      692eb43516e5a79d257dca6b883f068ca712f55471caf2185b5d7b89db93ee16

      SHA512

      8bc89a2c9a405c5042f8feb10638f75d00d4a6bbcd7dd8c9fe656a5e37cbad4ba0b10d8dcb84a45a3fe0d9e94266aa58e3cd55963362531a5098d1f2054ff191

    • C:\Windows\SysWOW64\oehlsgjb.exe

      Filesize

      255KB

      MD5

      29ab89459b034fe2005972204dfe2217

      SHA1

      5e3ecca259ef350e43d17201fd2e99b21517cce7

      SHA256

      692eb43516e5a79d257dca6b883f068ca712f55471caf2185b5d7b89db93ee16

      SHA512

      8bc89a2c9a405c5042f8feb10638f75d00d4a6bbcd7dd8c9fe656a5e37cbad4ba0b10d8dcb84a45a3fe0d9e94266aa58e3cd55963362531a5098d1f2054ff191

    • C:\Windows\SysWOW64\zuegorhzroeej.exe

      Filesize

      255KB

      MD5

      41b073c1b914ec427094ae02165625ca

      SHA1

      ac3bf0aa24c6573aa26ce8ebebff492d4550212d

      SHA256

      59aeeb8a3a74e539daa92e9c72498136240f3cf950d91758702e70bc5d1d10ff

      SHA512

      8d96d10b20744573b4d1b028a89e1bc8b93ea7aee98b376d4e1debc79c0a2c6c1d54982c41bc95bd8e1d0d0482a356bc4feedd512652ba012cd929ac67c4055a

    • C:\Windows\SysWOW64\zuegorhzroeej.exe

      Filesize

      255KB

      MD5

      41b073c1b914ec427094ae02165625ca

      SHA1

      ac3bf0aa24c6573aa26ce8ebebff492d4550212d

      SHA256

      59aeeb8a3a74e539daa92e9c72498136240f3cf950d91758702e70bc5d1d10ff

      SHA512

      8d96d10b20744573b4d1b028a89e1bc8b93ea7aee98b376d4e1debc79c0a2c6c1d54982c41bc95bd8e1d0d0482a356bc4feedd512652ba012cd929ac67c4055a

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\gwyejoqlvb.exe

      Filesize

      255KB

      MD5

      264cd67f9b091450d0c02a30138d040b

      SHA1

      ea710ca17c7c65e334e7192a31e660efd2b94f55

      SHA256

      d9a64d4974a9ff0011b572cc293d507d746c4a64fe15fa0e9e20f7133e790aac

      SHA512

      38f969f43a1640c4b1310723f5e9f147d40cd195d9ad984cce40de398d8b606569b51a556edbba84403720ffd14ddb95deee7503c84aea06d8ce34ec13b2f981

    • \Windows\SysWOW64\kmyrfcpfeqnaris.exe

      Filesize

      255KB

      MD5

      34365157a38678052c73fe9e81aa035a

      SHA1

      493bf59f033f100b1c9c4b0561dd4e1d130d447a

      SHA256

      6b20a0e531a8ac290c0f1dc8f4be5208e15d2f4ec446a1918147494a6bf0e311

      SHA512

      589fddc45eba9df90245df52724d709dab6ac200b970d5674772c65c5c1776b8a899b61663f6d3c1edf4c0e20835c112d4429b7f04e089bc7824181bd9a1864c

    • \Windows\SysWOW64\oehlsgjb.exe

      Filesize

      255KB

      MD5

      29ab89459b034fe2005972204dfe2217

      SHA1

      5e3ecca259ef350e43d17201fd2e99b21517cce7

      SHA256

      692eb43516e5a79d257dca6b883f068ca712f55471caf2185b5d7b89db93ee16

      SHA512

      8bc89a2c9a405c5042f8feb10638f75d00d4a6bbcd7dd8c9fe656a5e37cbad4ba0b10d8dcb84a45a3fe0d9e94266aa58e3cd55963362531a5098d1f2054ff191

    • \Windows\SysWOW64\oehlsgjb.exe

      Filesize

      255KB

      MD5

      29ab89459b034fe2005972204dfe2217

      SHA1

      5e3ecca259ef350e43d17201fd2e99b21517cce7

      SHA256

      692eb43516e5a79d257dca6b883f068ca712f55471caf2185b5d7b89db93ee16

      SHA512

      8bc89a2c9a405c5042f8feb10638f75d00d4a6bbcd7dd8c9fe656a5e37cbad4ba0b10d8dcb84a45a3fe0d9e94266aa58e3cd55963362531a5098d1f2054ff191

    • \Windows\SysWOW64\zuegorhzroeej.exe

      Filesize

      255KB

      MD5

      41b073c1b914ec427094ae02165625ca

      SHA1

      ac3bf0aa24c6573aa26ce8ebebff492d4550212d

      SHA256

      59aeeb8a3a74e539daa92e9c72498136240f3cf950d91758702e70bc5d1d10ff

      SHA512

      8d96d10b20744573b4d1b028a89e1bc8b93ea7aee98b376d4e1debc79c0a2c6c1d54982c41bc95bd8e1d0d0482a356bc4feedd512652ba012cd929ac67c4055a

    • memory/328-80-0x0000000000000000-mapping.dmp

    • memory/328-97-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/328-84-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/584-88-0x0000000070041000-0x0000000070043000-memory.dmp

      Filesize

      8KB

    • memory/584-92-0x000000007102D000-0x0000000071038000-memory.dmp

      Filesize

      44KB

    • memory/584-89-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/584-98-0x000000007102D000-0x0000000071038000-memory.dmp

      Filesize

      44KB

    • memory/584-104-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/584-85-0x0000000000000000-mapping.dmp

    • memory/584-87-0x00000000725C1000-0x00000000725C4000-memory.dmp

      Filesize

      12KB

    • memory/584-105-0x000000007102D000-0x0000000071038000-memory.dmp

      Filesize

      44KB

    • memory/868-95-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/868-65-0x0000000000000000-mapping.dmp

    • memory/1068-94-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1068-72-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1068-61-0x0000000000000000-mapping.dmp

    • memory/1316-57-0x0000000000000000-mapping.dmp

    • memory/1316-93-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1316-70-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1348-82-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1348-96-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1348-68-0x0000000000000000-mapping.dmp

    • memory/1728-86-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1728-55-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1728-71-0x0000000003310000-0x00000000033B0000-memory.dmp

      Filesize

      640KB

    • memory/1728-54-0x0000000076301000-0x0000000076303000-memory.dmp

      Filesize

      8KB

    • memory/1980-100-0x000007FEFBAD1000-0x000007FEFBAD3000-memory.dmp

      Filesize

      8KB

    • memory/1980-99-0x0000000000000000-mapping.dmp