Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 23:34

General

  • Target

    06524baada7bf3e79daf1b99464821c6_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    06524baada7bf3e79daf1b99464821c6

  • SHA1

    93165e3e625e2567cbeffbb9d84bed49e00a6aa2

  • SHA256

    b4ac9b2ecfa13949bda70c6d4126a572d3ac18a61bc7dbfa0d21a4dce96c2b19

  • SHA512

    f0b7d249be7713ba3d4c9c0e09b9b85cc2946f71068699dfac27e55b7dc6263df17d9ba3cb53b5a0bd19a91f116ddce6d05e5aa6231406e953625a8e68727118

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6F:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5S

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 37 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\06524baada7bf3e79daf1b99464821c6_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\06524baada7bf3e79daf1b99464821c6_JaffaCakes118.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:1320
    • C:\Windows\SysWOW64\bfsyunscre.exe
      bfsyunscre.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:2452
      • C:\Windows\SysWOW64\joryekgs.exe
        C:\Windows\system32\joryekgs.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:2680
    • C:\Windows\SysWOW64\alnwdroobatwsmg.exe
      alnwdroobatwsmg.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2644
    • C:\Windows\SysWOW64\joryekgs.exe
      joryekgs.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:2724
    • C:\Windows\SysWOW64\jbqvfyzqlgahy.exe
      jbqvfyzqlgahy.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2608
    • 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:2548
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1352
    • 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:1800

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Boot or Logon Autostart Execution

    3
    T1547

    Registry Run Keys / Startup Folder

    2
    T1547.001

    Winlogon Helper DLL

    1
    T1547.004

    Privilege Escalation

    Boot or Logon Autostart Execution

    3
    T1547

    Registry Run Keys / Startup Folder

    2
    T1547.001

    Winlogon Helper DLL

    1
    T1547.004

    Defense Evasion

    Hide Artifacts

    2
    T1564

    Hidden Files and Directories

    2
    T1564.001

    Modify Registry

    8
    T1112

    Impair Defenses

    2
    T1562

    Disable or Modify Tools

    2
    T1562.001

    Credential Access

    Unsecured Credentials

    1
    T1552

    Credentials In Files

    1
    T1552.001

    Discovery

    Query Registry

    2
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    1
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      512KB

      MD5

      b4ff46f4d72dba23833639272af3e9f6

      SHA1

      38dddf9c565863f0597e66212065656fe63b6341

      SHA256

      01c74906273fe5c9150ebe69544f60bffabb5e556b1e5587b0784bdd02943362

      SHA512

      fdedf4d343f1b9509ea8af7cc9b2627e3993a20f8a76b334f88456e388ac1a08cf4efb56ae5537371f33c5aa39e88e58d8ae7e58861c177d89220ec10d4b0a75

    • C:\Windows\SysWOW64\alnwdroobatwsmg.exe
      Filesize

      512KB

      MD5

      37633c7371115d16c2920dbff505eb0c

      SHA1

      e5075beeac299b3cc35036b507be24aca8771d5b

      SHA256

      bca0ddbc8aa5b850037d8eac662d006cce0dcc261519ba0ea4780056e5d4cf8b

      SHA512

      0317ee0b1a4f5fabfb087df247b080193848aca9d683bac3f8cfeb3070e894e749d0a76378fea586ace90375813591e489104a678870c14751887804c7f14510

    • C:\Windows\mydoc.rtf
      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\bfsyunscre.exe
      Filesize

      512KB

      MD5

      332fac4126826209d416a5bfa166a689

      SHA1

      dc71e084d08292682f80113c4f77b3d0c45b0056

      SHA256

      1576a52679e1a9f3a3b60cf8f4bc87c79598669faf1b92d4543aac91605cfbac

      SHA512

      d65df5d968d868b05ddaf6523e3cdf5c0b68926ed1002a2ee7bc62fa854558055b24577ee5a9375e5ec73bf6853a1e95ab885432cdc895ffdcade953a46bb546

    • \Windows\SysWOW64\jbqvfyzqlgahy.exe
      Filesize

      512KB

      MD5

      b7072b6d656a496519dbb4fd874e2e3e

      SHA1

      8ce2618e584a892374460807f291c04794ba6bfd

      SHA256

      7cb6ab91351870000865ff547dfab8c3bc98e3cea411e96d3c3ef0aa73f12fa4

      SHA512

      411863720191dd4cdd445b581b76033a686bd37c1e2c58b9353f286fe984e900d527c7ccaa5c58a4ef960518f5e3574cc2b8e2358a18865bdb5e204b97a713c1

    • \Windows\SysWOW64\joryekgs.exe
      Filesize

      512KB

      MD5

      ad7a50c4f402a4af5e55d33e3055d62d

      SHA1

      24257402318f8f7993ba9374c3c16b8fc22b4080

      SHA256

      6261e8ecfb7553428e676e7124a5b2e5a5cc8d52cb2dc4713d422bb8d1b8a338

      SHA512

      7aacbdb9786abd90297fc44cc3e40b93dc1ec5840c3081e04bbadba485f1bcb0ffa63b6189a466724884af8f92a54539c8673f6629f60f590671f8ece884fe69

    • memory/1320-0-0x0000000000400000-0x0000000000496000-memory.dmp
      Filesize

      600KB

    • memory/2548-45-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB