Analysis

  • max time kernel
    153s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-05-2024 20:14

General

  • Target

    6fb585b4fa8768a55275e9e9f0811e11_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    6fb585b4fa8768a55275e9e9f0811e11

  • SHA1

    947d2321a3d22e92f1cccba0277ec3890d4016d7

  • SHA256

    fadf485c8272484dff579e9f26f2b9ae45088740ccefe4519ac72d8638744136

  • SHA512

    0efbe655f1de08cf57a2d7bd1b619d68bbf0b235417ffe0b2082f3d547ded5defc033888a32322f876e70ad6f4368c5e9e9c1f23baaeb7ab670db6c48b52aba4

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6+:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5D

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 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\6fb585b4fa8768a55275e9e9f0811e11_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\6fb585b4fa8768a55275e9e9f0811e11_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:3620
    • C:\Windows\SysWOW64\dnnjzkgqnx.exe
      dnnjzkgqnx.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:2880
      • C:\Windows\SysWOW64\mzgpunhz.exe
        C:\Windows\system32\mzgpunhz.exe
        3⤵
        • 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:4108
    • C:\Windows\SysWOW64\kcoefjhxmgrvrkr.exe
      kcoefjhxmgrvrkr.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:5072
    • C:\Windows\SysWOW64\mzgpunhz.exe
      mzgpunhz.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:1896
    • C:\Windows\SysWOW64\dzlycfugogjzn.exe
      dzlycfugogjzn.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4736
    • 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:1900
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4088 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4304

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Winlogon Helper DLL

    1
    T1547.004

    Privilege Escalation

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Winlogon Helper DLL

    1
    T1547.004

    Defense Evasion

    Hide Artifacts

    2
    T1564

    Hidden Files and Directories

    2
    T1564.001

    Modify Registry

    6
    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

    4
    T1012

    System Information Discovery

    5
    T1082

    Peripheral Device Discovery

    1
    T1120

    Collection

    Data from Local System

    1
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      512KB

      MD5

      cc563a8c5caa0e10b28e3d8dd4e3a193

      SHA1

      777581e2999e3240efb55514810cf48daebd6ed0

      SHA256

      a73aa130135125e0e57addccbda930186b99249c30baf5514b1124a5b6e4f8ef

      SHA512

      a4d3b5ff5fcdef996dfdf106a40895f8bffb61de9890f67210c1d9f467d6f664c2fd104617d2bb3f602f931397a20bca5c132c299b7604c5ade989e60737a504

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

      239B

      MD5

      12b138a5a40ffb88d1850866bf2959cd

      SHA1

      57001ba2de61329118440de3e9f8a81074cb28a2

      SHA256

      9def83813762ad0c5f6fdd68707d43b7ccd26633b2123254272180d76bc3faaf

      SHA512

      9f69865a791d09dec41df24d68ad2ab8292d1b5beeca8324ba02feba71a66f1ca4bb44954e760c0037c8db1ac00d71581cab4c77acbc3fb741940b17ccc444eb

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

      3KB

      MD5

      a34f34e4252b8718eb8bb4fa4c4f1a76

      SHA1

      0ffb2bf3807348f6b64022cca00aa275557c786d

      SHA256

      fe5068f961b0438c86039eaa1bcaebb73441e7c0a76dc3a49def737555720fb6

      SHA512

      e34fa1c8a92167314f30561f18f95baed996503881cadbf8b1cd3eeb8fd22b9f36e0045120c27c89c83b5ba7b30ede049fd479d46d3fd9f45310b21013e5f3a4

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

      3KB

      MD5

      25b0fed6e14635e42992752bda6052d5

      SHA1

      6dcb1c9d70cce3c9290fb7c0e809dca598cae2a7

      SHA256

      8e0eaddb0de447f89ef82a627975c768595432f05d6257f8bf7348dc2af16061

      SHA512

      59cde7157eee0b7a8855ed8522bfc0c5b1ccabdb3331fefaea3d66461a6f6f6f28fd8c5d216ceea02c427bd6f9c23ed3615170fbb72f76a5d3c94c35072e2b42

    • C:\Users\Admin\Documents\SetEnable.doc.exe
      Filesize

      512KB

      MD5

      714e0d38846744155a6754316df78b46

      SHA1

      0868a97c1cbdbafc80bdd9ab2343c577f4c37820

      SHA256

      0136591c0788950643aa975e0f60c809bbde6d8b292dd792b290208eb82bd4d6

      SHA512

      a4de5be4bf84e7f675d5d92cfa46743068f5b631df23c23b69e82321c7c1de3cc9510f964b3587758a77687eae82d9916cfd8f420209d2e3a0e140bc5bd3b756

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

      512KB

      MD5

      666ab63efe3e6fa707d71212c228ef2f

      SHA1

      b5a1f033a3ed63149925c23b8655a7b744a9e6ab

      SHA256

      3f29706301d9e33f48521a88596b4ad7e5e8a7cd53eed360564ca4e8e77d5aa6

      SHA512

      fdf35c183fa5a4ceaf8e3f6a8037331245cd30ce5b5de52f59b461ed0bd0d53b1fa96a5bb10299895d97b42810fa50be4de9d1eec356e5d16fdd968f426a7c62

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

      512KB

      MD5

      3b8e369137e11c05785f4142b4345489

      SHA1

      8e2a282db8544d52788236c45378c55279fcfb8f

      SHA256

      bbb19c57a951161bb7f9239e3b096856b807099b5d8bb831f638a0604f1fc650

      SHA512

      7d6d6b208fa5235d42a0f045fd6947eca965cce2f65ba1aae6c67e48600698b7c25653c6ba6cba63e75b0577c7f552aa0a9bf613d7f0dc83fa668191ae4ed629

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

      512KB

      MD5

      c39abed44e89c6987d3f3fb0385c4ca4

      SHA1

      a1eedb2a6d0d2e815721db2a938021bd637f66d7

      SHA256

      6d1a87ee55d2d171f9d5ea649e5951abb4f3ab4c183ece86ac8e35ab40be58a9

      SHA512

      547bb91a70e6d23dc1052a6c43c9156edc7534546d579685e449693764989d4e4d808a6cf1b7b6f5037427ad78c02e693de1df6b43279e4e0ab6b4959983752b

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

      512KB

      MD5

      196f51822161dffa2aa2cc11180075f2

      SHA1

      e7c868ab0a682abd765ace6ae117334935efa4a1

      SHA256

      4fe65c30a0b4b973395017acd88cbc70cd75f6d4f23336457eb87fbdd09581b4

      SHA512

      3b2deb1f81e941ebeebee4b295c33fbb071e2e3612297986d1d3e65ab91687e0317c756cb40dccc374bdbee3126948f46a66225ca7be0b110f7e6ac6ba2b6499

    • C:\Windows\mydoc.rtf
      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe
      Filesize

      512KB

      MD5

      cdbdbe51fecf63214bb2d23e8361081f

      SHA1

      2b2a66eafbded5c6711b00d2ed7866dca61c653d

      SHA256

      f4af53ece3612f5de58956769c5f1443d60e4ff5396f7133d726e55fdc576e37

      SHA512

      b32c2e82dd98557eaf7322104609daa014707a6cb3f5a95c261e7e7802c9ef6492e5cc401472a7190c7cab1db6f35840929255a67b6e4b8c184cdec7b837d22f

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

      512KB

      MD5

      4e3391950c02214452af57e594185f89

      SHA1

      20d02135ee59728be2a2beb7edc85f022a6f6650

      SHA256

      ce9a6222e582137a38681bbc166106925db43a94a23c0d83d27f36b80a7e7e66

      SHA512

      5dbbd9c51879bef43026993468ec66e5548bbcfbd7eb944f38f2c34d816e55f5db7c78039c63d5fdb1ab736a3d6e91ca4af1dab57b4bc67dd89c18a1583f2137

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

      512KB

      MD5

      efcf5157b80e2402a7a7cf266264db4a

      SHA1

      0eb978826a27dcc6f00c0d06e46ed92f1dbb1db0

      SHA256

      4e20ad0864add58a2158d5213c89fa81a5eeae81d73f6c013f976d5b06ce89e3

      SHA512

      9b05c892390de9b9bc0951468cf5a3ba1a625bf4580bb9b8afcb8d77b5d5ad2e99e243370c89fc8ece7fd551fb2551957c0ac5cb0b475b31e2a378e000cd85d5

    • memory/1900-37-0x00007FFFB6D30000-0x00007FFFB6D40000-memory.dmp
      Filesize

      64KB

    • memory/1900-38-0x00007FFFB6D30000-0x00007FFFB6D40000-memory.dmp
      Filesize

      64KB

    • memory/1900-41-0x00007FFFB6D30000-0x00007FFFB6D40000-memory.dmp
      Filesize

      64KB

    • memory/1900-39-0x00007FFFB6D30000-0x00007FFFB6D40000-memory.dmp
      Filesize

      64KB

    • memory/1900-40-0x00007FFFB6D30000-0x00007FFFB6D40000-memory.dmp
      Filesize

      64KB

    • memory/1900-42-0x00007FFFB4610000-0x00007FFFB4620000-memory.dmp
      Filesize

      64KB

    • memory/1900-43-0x00007FFFB4610000-0x00007FFFB4620000-memory.dmp
      Filesize

      64KB

    • memory/1900-126-0x00007FFFB6D30000-0x00007FFFB6D40000-memory.dmp
      Filesize

      64KB

    • memory/1900-125-0x00007FFFB6D30000-0x00007FFFB6D40000-memory.dmp
      Filesize

      64KB

    • memory/1900-124-0x00007FFFB6D30000-0x00007FFFB6D40000-memory.dmp
      Filesize

      64KB

    • memory/1900-123-0x00007FFFB6D30000-0x00007FFFB6D40000-memory.dmp
      Filesize

      64KB

    • memory/3620-0-0x0000000000400000-0x0000000000496000-memory.dmp
      Filesize

      600KB