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Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    25/12/2023, 20:48

General

  • Target

    3c415d5af2c85fde8f34cbc488575884.exe

  • Size

    512KB

  • MD5

    3c415d5af2c85fde8f34cbc488575884

  • SHA1

    09d9590db6103bf7c6ef4a703633549573836932

  • SHA256

    64987c5eda9958d49fd547d39cc9e55b991d6495f7ac70144db2da9ed6c863c1

  • SHA512

    7f0aaa6213c284f49a168887921ee87603748153462e60872b8b6efa6d500e008eea4a4467a92413bf0681f7fb763cc0820610437d71abdb00d599e92449fc1b

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6Z:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5M

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 6 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 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 33 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\3c415d5af2c85fde8f34cbc488575884.exe
    "C:\Users\Admin\AppData\Local\Temp\3c415d5af2c85fde8f34cbc488575884.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:2040
    • C:\Windows\SysWOW64\wmmddpquvl.exe
      wmmddpquvl.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:2812
      • C:\Windows\SysWOW64\uutgqmno.exe
        C:\Windows\system32\uutgqmno.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        PID:2588
    • C:\Windows\SysWOW64\dwtdxqqgunffwap.exe
      dwtdxqqgunffwap.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2816
    • C:\Windows\SysWOW64\kqrnmnymofrkb.exe
      kqrnmnymofrkb.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2864
    • C:\Windows\SysWOW64\uutgqmno.exe
      uutgqmno.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:2772
    • 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:3052
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1824
    • 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:2940

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      512KB

      MD5

      029833bf683e64cd3cb7ffc044f8b850

      SHA1

      2738faeb8ddb2d0ab651430604e689201fdde4e8

      SHA256

      64409b8d5541b69ea7bc42fdd71957a69e34e834dedad707aecba7666d8f2ae1

      SHA512

      bbfa39f8d1c0ad898c4f082bf2e84bd58c3b5bb8aa0a5aa7525c0a4b0621f0f86890e2ec953783f02de616312d1c060bf29428e55a420b7a60960619880abd5b

    • C:\Windows\SysWOW64\dwtdxqqgunffwap.exe

      Filesize

      512KB

      MD5

      186dd1c23388af28e5568d0755bc187d

      SHA1

      cb24de5a758fa4c96f792078e82cce55f6d5c478

      SHA256

      f266de2e2001f4ecebaf02591fbd32253121edd8058f0ce4c467461347c3a8bc

      SHA512

      b5cda94f09b55ce88b08b03c26fc00867fedc5d347df620202d49cf207fbca1b8976536d243858c723ac0feea96a0ae9190ad506b71f3ef7b4da6c4762a847fb

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\kqrnmnymofrkb.exe

      Filesize

      512KB

      MD5

      79ad43785fbf1c0cdcbbc7b5d1f9918f

      SHA1

      5cc346477d299235755b0929132e8e90db58ca42

      SHA256

      9c45ab10250b1d15515dc23c774d243f89d5a7d697a2cbd3831804523a420e02

      SHA512

      fdfb9ce523a29e785a97a9845a7e7c9a01d0f66fe277e5d91e3a071a075b5dc2c15d49e521b843dfa21df4e139cceb184e005d228c240e4348c36c77243609ca

    • \Windows\SysWOW64\uutgqmno.exe

      Filesize

      512KB

      MD5

      dad1ca3d33b55b9e018ebf3c2baa3ea2

      SHA1

      c0b31b027cbfca9a1afc2d74027e71f10e4521b2

      SHA256

      a88c02a84f4cb3484cd5f2d68a4c22ea9877e7b56590f5a8296c1b6ec9d29998

      SHA512

      6294c35fbd40b3021197836ff1d1e28b760eeaf477caa50f9286fe7d2363495b49c740acad783ed1842ef36abeb1cfad37b8eb72dc2b1861c2c336bfbed297e6

    • \Windows\SysWOW64\wmmddpquvl.exe

      Filesize

      512KB

      MD5

      979c067e8600574428b1659220af3a7c

      SHA1

      e16de8123cae4069bf4193eeec33befaff985c22

      SHA256

      bf5fb312c232eec122329db3069d48047ee51a078bd98c5af6e969e5ee9bb5f1

      SHA512

      7ead8b3bac8ef3d0f30e1c4a18a2c4fc45ef3f4f5ee40a38c4635e737e4f3c78dfb41eed6c2b0d77e88cf8c03c49d2c8756b540336e8b3552d62ac9a2b6cabf8

    • memory/2040-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

    • memory/2940-75-0x0000000004230000-0x0000000004231000-memory.dmp

      Filesize

      4KB

    • memory/2940-78-0x0000000004230000-0x0000000004231000-memory.dmp

      Filesize

      4KB

    • memory/2940-84-0x00000000039A0000-0x00000000039B0000-memory.dmp

      Filesize

      64KB

    • memory/3052-45-0x000000002FF51000-0x000000002FF52000-memory.dmp

      Filesize

      4KB

    • memory/3052-46-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/3052-47-0x000000007182D000-0x0000000071838000-memory.dmp

      Filesize

      44KB

    • memory/3052-77-0x000000007182D000-0x0000000071838000-memory.dmp

      Filesize

      44KB