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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/04/2024, 08:16

General

  • Target

    0735fe97a869d158d178917687cba38b_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    0735fe97a869d158d178917687cba38b

  • SHA1

    255a1bc0456365e8bf1382cd4e59c938eeffa9b9

  • SHA256

    2ce93a0ce28c4e7aa1e970b3880e057842e3dd19135ca7124eae8e86088813a9

  • SHA512

    b141d76e6da578edf8f10357a9d66e0eb7e6fc7d2c6d5fc9884b7589af4974dbac9490a930d25568766327828e8d35132ce6bb05c04e36a731061215564056ab

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6f:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm54

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 10 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 13 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 19 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\0735fe97a869d158d178917687cba38b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0735fe97a869d158d178917687cba38b_JaffaCakes118.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:1580
    • C:\Windows\SysWOW64\bbuyqnchsv.exe
      bbuyqnchsv.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:3736
      • C:\Windows\SysWOW64\vdajiaep.exe
        C:\Windows\system32\vdajiaep.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1652
    • C:\Windows\SysWOW64\dkcyhcbeckowiln.exe
      dkcyhcbeckowiln.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:588
    • C:\Windows\SysWOW64\vdajiaep.exe
      vdajiaep.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3928
    • C:\Windows\SysWOW64\ywafazpmszzra.exe
      ywafazpmszzra.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1384
    • 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:2220

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe

    Filesize

    512KB

    MD5

    6917496186b94edae8ac523bb306541a

    SHA1

    d34dd63d9146fe2ebe77c2e2c3ddd28ca15c867b

    SHA256

    f5e7a6ebd632b76e42a3e89e835e01ffa46f720903cbe9759025949a8ee8f402

    SHA512

    a957282d1ccf8fb83ba9a03fa7b57763240f90107246ddac1e51ace14f062d206ad57ab2e067cd8269f6ce40e189f244c10efce7f5e9c037ad23e1600ba41b2c

  • C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe

    Filesize

    512KB

    MD5

    25d2c2d40a2a7cdecf8e573c058b0ed4

    SHA1

    5d0605582d3a21d687a5c9ceac113a436b87c1e5

    SHA256

    b7d9953ba763abcaaa12a843b59a5caf2bef9aa019cad8204a30cdf0cc7d85b2

    SHA512

    f7239da4fe54e5fc154fbe62dfa6ca302d764722a92d839f70b2208f2498820dc16c1b3ebc2aa1db4afd9a3657c88f93cdbdb99bf3ab1bb73b58c167a05b2088

  • C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat

    Filesize

    239B

    MD5

    29c06012a024bb04d9da99412a6dec90

    SHA1

    b4bda8f492bed71799b96b43470cb65e724d9f6b

    SHA256

    fc8dc7b910e0f95654329a7cfd24b231b530136b7888b55a12e4a9cfc204f067

    SHA512

    75fab3d4e514be28b392609bca2744702ea4090bf14e96643d8536e22b49dff7c43c4d1bf420499064ac56d67e60a29cfe7de68bb28116af62bb7c7cab1ec88f

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms

    Filesize

    3KB

    MD5

    794402d961678dcbf09b3fc3f7fea2b8

    SHA1

    85d3efeefbde7d41eee2a2b91bb5b3e48d3892d4

    SHA256

    eb51ac502e2b7d538934e5e1c1f6f1aefe9cf29f734a03ad98f9db0ab73b5b4f

    SHA512

    8b63f4dab11f14565baa459aeb91b983758857158c61b3c6d8330686963b89a48e52a70df9b987a3e81e6db1b240465315fb492b31b6034cc6be9cb0e75f678e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms

    Filesize

    3KB

    MD5

    4d59751bcfae7541ccc27c81921904b9

    SHA1

    2d9e4f419c3e5d675ff16a42d1b53cd5d76a72a2

    SHA256

    8e60cf01732436406acadb6cb372fb180de9263e63772efc1f7454f2294bbac0

    SHA512

    76808b6dd433beb637bafc839654d4794ae9330f500a3d64164646f752a9071d7308f6af3b54ba8563d89e3fec52e23909d30f5dfe8a6e3f7cd54d902afeffe9

  • C:\Users\Admin\Documents\SaveSelect.doc.exe

    Filesize

    512KB

    MD5

    de4eb06ce54d3a29edfe93bf1a04adce

    SHA1

    78c2e9c0fdbd30f2288d98d0f992856b166ee9fb

    SHA256

    0335f12004b717e1e9a368f9b864333b118697b2aef5f52004331df62ba915fd

    SHA512

    a5f1166f30e9dc91edb8c6942912ea16d3f7ba949f8a9599c091f9ac9515e542188891ad7d80d00671c4f65ce1794a616e5119282998594f6a361d3c802ea37e

  • C:\Windows\SysWOW64\bbuyqnchsv.exe

    Filesize

    512KB

    MD5

    f6ea3e908fe1f94e656806f7206ce28b

    SHA1

    0217dfba84ca7eb13b5c9469e492029bbf161a2b

    SHA256

    03bad5509c656c5cd86d82d4f8281fd68c4c3d1b0fb9ea784d863529f9679672

    SHA512

    90e8ef388cf0a7a76a39eb043cf0ec24c326a2d05a28ef91337eb0ba25c89b800d199eff3f173d9dfe2fc718b43240192f58373e271ab4f16f29a7d5ced46c22

  • C:\Windows\SysWOW64\dkcyhcbeckowiln.exe

    Filesize

    512KB

    MD5

    84b63ccf2f87936bf80b241e232c8e4a

    SHA1

    8cfd8792dc4f7954a9bc60a64eda9e5a622d7684

    SHA256

    fc8e6fc781f6cd4f9476d30c9d935c429a2bd95e7659d96f000c6df6ebc49fa7

    SHA512

    84481adff3906436c15c14398215fd44c8e81343c7c758ce57383132841f5d790f20d51d4ca6ff06c3a46d23fe2736b2d8473b72c98bf7ee0f5f56c89a60185a

  • C:\Windows\SysWOW64\vdajiaep.exe

    Filesize

    512KB

    MD5

    e3c0d224f095367449ff9589902172b5

    SHA1

    68fd6a2db616655b0b88a3f277489be8c64957a9

    SHA256

    a3d3c509fbec6a25a122541c8b3e5431e60547eacf98ff089417aba056a8ed6a

    SHA512

    90a108d08529744ff9e3f2b47b7d451d3f1ab5a788eb4dd30aaa5b1543a59680c3bbc1e0bd7381e389187fcfea1f4e61b38cc0dbc71c0e727adf5f026151bb33

  • C:\Windows\SysWOW64\ywafazpmszzra.exe

    Filesize

    512KB

    MD5

    96428057acf0789816ed91bb491a7186

    SHA1

    9260d2fc1eaf4e7c57d8f810c34ca6325637a56e

    SHA256

    a3f38df374a00eaef9b5ef6dbb4f189d22b0e9b9518a52b4a44231c70c10cf22

    SHA512

    c1f54842b2b23bfc08a4ac3908919216cc81ffe74771dbf5a6d176d22e72c5f7709ed1ae80658199aabcd3d1f5536d99c505af2843cce8db4323aad9ffc543d0

  • C:\Windows\mydoc.rtf

    Filesize

    223B

    MD5

    06604e5941c126e2e7be02c5cd9f62ec

    SHA1

    4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

    SHA256

    85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

    SHA512

    803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

  • \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe

    Filesize

    512KB

    MD5

    c24b9e283ce49c2a02b37237a0bb6e0c

    SHA1

    befd080914a9eb34f03a40878bd5da9d478f2853

    SHA256

    4bcbea967e6d0a8d6ea59de62bbf03b18845c0f1ae6d659eb3607b70a8dbb9b8

    SHA512

    5f578880f0ef6d7464a1ae4d3047a3ec14c694d15d749fa51097dd7459af0af20ac5107066ff6e607f85a9050571677eee1593f8f5f7c98e3bcff066d7216d18

  • \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe

    Filesize

    512KB

    MD5

    85d43f37db777a9e14cacd3191c53c05

    SHA1

    143f1db173441efd106285d0d321bb069bfa1252

    SHA256

    8b551b33194de7b2b8ca5535e2ed3823a74d44a6a25e6e8e8a5e9ac97c5026e4

    SHA512

    90b1fa14d119ebc7dcfe27731064b0f8b28c23e50ce7a3b2dc6911d36b27f46dab07d84a1b310e4b9d28e738fcf72f3fa5269cb0e24eab8a1cf93dcfcbaae2b7

  • memory/1580-0-0x0000000000400000-0x0000000000496000-memory.dmp

    Filesize

    600KB

  • memory/2220-39-0x00007FFBF93D0000-0x00007FFBF93E0000-memory.dmp

    Filesize

    64KB

  • memory/2220-38-0x00007FFBF93D0000-0x00007FFBF93E0000-memory.dmp

    Filesize

    64KB

  • memory/2220-36-0x00007FFBF93D0000-0x00007FFBF93E0000-memory.dmp

    Filesize

    64KB

  • memory/2220-37-0x00007FFBF93D0000-0x00007FFBF93E0000-memory.dmp

    Filesize

    64KB

  • memory/2220-35-0x00007FFBF93D0000-0x00007FFBF93E0000-memory.dmp

    Filesize

    64KB

  • memory/2220-43-0x00007FFBF6EC0000-0x00007FFBF6ED0000-memory.dmp

    Filesize

    64KB

  • memory/2220-40-0x00007FFBF6EC0000-0x00007FFBF6ED0000-memory.dmp

    Filesize

    64KB

  • memory/2220-113-0x00007FFBF93D0000-0x00007FFBF93E0000-memory.dmp

    Filesize

    64KB

  • memory/2220-114-0x00007FFBF93D0000-0x00007FFBF93E0000-memory.dmp

    Filesize

    64KB

  • memory/2220-112-0x00007FFBF93D0000-0x00007FFBF93E0000-memory.dmp

    Filesize

    64KB

  • memory/2220-115-0x00007FFBF93D0000-0x00007FFBF93E0000-memory.dmp

    Filesize

    64KB