Analysis

  • max time kernel
    15s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/01/2024, 19:20

General

  • Target

    ab0757415e5a33fde6893ba93d5683ff.exe

  • Size

    512KB

  • MD5

    ab0757415e5a33fde6893ba93d5683ff

  • SHA1

    0836ceb3d65019483a8a1664a80422dffdfec99d

  • SHA256

    677fc2b026079044c61098fc32986c2624095fc78d0f478e74e588a559bba8a0

  • SHA512

    3c13d8a82243d85f1462ad9951abdfe4d07fe3e65e1b63c70f23aebf70a27adaab84c5dff41bcd622d04497ec5e7bb69b0cd5b0ca95e07aab1bcaea6efb63565

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6a:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5n

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
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 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 12 IoCs
  • Drops file in Program Files directory 14 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 20 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ab0757415e5a33fde6893ba93d5683ff.exe
    "C:\Users\Admin\AppData\Local\Temp\ab0757415e5a33fde6893ba93d5683ff.exe"
    1⤵
    • Checks computer location settings
    • 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:1428
    • C:\Windows\SysWOW64\hpygfkhkxiscc.exe
      hpygfkhkxiscc.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4748
    • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Windows\mydoc.rtf" /o ""
      2⤵
      • Drops file in Windows directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:4632
    • C:\Windows\SysWOW64\fulfuowg.exe
      fulfuowg.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:5280
    • C:\Windows\SysWOW64\qblacpivicjqwpe.exe
      qblacpivicjqwpe.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:5792
    • C:\Windows\SysWOW64\gawylqhsbx.exe
      gawylqhsbx.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
      • 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:4788
  • C:\Windows\SysWOW64\fulfuowg.exe
    C:\Windows\system32\fulfuowg.exe
    1⤵
    • Executes dropped EXE
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:6108

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\fulfuowg.exe

          Filesize

          512KB

          MD5

          2e73167ffce3c1ee795e93fc9b460ca2

          SHA1

          5ebb82f6de975fa39c7ed214442ae33b4238d029

          SHA256

          e16775b1861ab14d9d612b7750ace346043d904b1e687ddcf0b27134e8b1eec2

          SHA512

          d9e1947a79b14bc2accfd9592cc25b826b4c20b6fe8b13274021e4569550fff2f821e9f4639c3e0d45f24f601ad8c8a9190ee00879defef866f32a8d390e1d7a

        • C:\Windows\SysWOW64\gawylqhsbx.exe

          Filesize

          512KB

          MD5

          4c39755139839cc3c5a61103b12041e8

          SHA1

          7b71900958e4115d7bb407f8958300ee1b63d4a8

          SHA256

          0dc85a2f12c0d4533a1dfadb5684bafc47f35a9177df1c55403b7f4674b26215

          SHA512

          226fbc3887bcddacf038e58aab5306bcc0dd4247e2bc1f568ec808d535d6635b5b9f6e74ce35dd8c5a836488517aa05bf5fe142fbd18e43c29f294e86a3d00a5

        • C:\Windows\SysWOW64\hpygfkhkxiscc.exe

          Filesize

          92KB

          MD5

          6662b185f19fbf697c56a25c92de7961

          SHA1

          0df0c0df0de3724258df2549c583e3c934aca726

          SHA256

          c11edb9e97848e20319fba876d9382c7193f68323eff1f7ed805bb04303bdc86

          SHA512

          c6e2cb83f68a63ca299dae843d2697d41dab8b565fb4005755b0d255b388779b6c1dad97375009c995f0a3d2e0acb4cc820090ca5dc24ee11e1a3de5b1a4921f

        • C:\Windows\SysWOW64\hpygfkhkxiscc.exe

          Filesize

          93KB

          MD5

          257f28bd5bdc2b725434b7ab570814e7

          SHA1

          972446e0f8d210c5d6f42a57a921391a236d564d

          SHA256

          d80f45a5995ba038d69dbe87f7c12827ffa2b53e79beedb0bc6ee91c10a61688

          SHA512

          c27aa91c3c3605941a1a121021c840fc7886cf27d43e9d6b2c371888a276d9dfd39135600a4f933f62dfa3d46cb6e12de6e31b3f8b939676701ff37f8cc61575

        • C:\Windows\SysWOW64\qblacpivicjqwpe.exe

          Filesize

          512KB

          MD5

          ea2f51ea6ef99570e8f39c0f89affea8

          SHA1

          b690bd9ddc3e7e85f8dd20972644037e3e38a920

          SHA256

          2249319cce3c8c3591c7ca920083609665f3205765f583fb3e5ba7353a1c00ed

          SHA512

          d70c931d905fa688081e120aee903c102cb477bf535fe8690dd1225b36fc3bb7d0bd589a70ccfc87f8cf8287d93b182c36d0d0388ad4f2121197b39b054ce1f7

        • memory/1428-0-0x0000000000400000-0x0000000000496000-memory.dmp

          Filesize

          600KB

        • memory/4632-45-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-42-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

          Filesize

          64KB

        • memory/4632-47-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-50-0x00007FF899550000-0x00007FF899560000-memory.dmp

          Filesize

          64KB

        • memory/4632-57-0x00007FF899550000-0x00007FF899560000-memory.dmp

          Filesize

          64KB

        • memory/4632-58-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-60-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-59-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-56-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-53-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-52-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-51-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-49-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-48-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-41-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-44-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-43-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-46-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-40-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

          Filesize

          64KB

        • memory/4632-39-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-37-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-36-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

          Filesize

          64KB

        • memory/4632-35-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

          Filesize

          64KB

        • memory/4632-38-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

          Filesize

          64KB

        • memory/4632-113-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-114-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-116-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-115-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-117-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-142-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

          Filesize

          64KB

        • memory/4632-144-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-143-0x00007FF8DBE30000-0x00007FF8DC025000-memory.dmp

          Filesize

          2.0MB

        • memory/4632-141-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

          Filesize

          64KB

        • memory/4632-140-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

          Filesize

          64KB

        • memory/4632-139-0x00007FF89BEB0000-0x00007FF89BEC0000-memory.dmp

          Filesize

          64KB