Analysis

  • max time kernel
    150s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 06:24

General

  • Target

    6a065dd1770bd82e5074cb544503727d_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    6a065dd1770bd82e5074cb544503727d

  • SHA1

    a9f1b72cecc728d538780b8df10c147a7032fd05

  • SHA256

    cdb7b46d261a3effb53583585210e60d1102a5a6cf2dc971839e9edc07b0f4c5

  • SHA512

    33b90458826a8359c8cf1fc68b4f6e96f616f4aca6e80e6747b17a3259fd0714f478b6d3c06364dafe0cfb08eefe16a8f62e38a11177d976369d0c619d679885

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6r:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5o

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 9 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 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\6a065dd1770bd82e5074cb544503727d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\6a065dd1770bd82e5074cb544503727d_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:544
    • C:\Windows\SysWOW64\bskbgpksuz.exe
      bskbgpksuz.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:4572
      • C:\Windows\SysWOW64\mtzjtbkd.exe
        C:\Windows\system32\mtzjtbkd.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:1340
    • C:\Windows\SysWOW64\dclaxqjpudczygq.exe
      dclaxqjpudczygq.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2416
    • C:\Windows\SysWOW64\mtzjtbkd.exe
      mtzjtbkd.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:4984
    • C:\Windows\SysWOW64\iekbjkkjoeoqk.exe
      iekbjkkjoeoqk.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1488
    • 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:1016
  • 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 --field-trial-handle=4124,i,13035806169561352434,1332896185314862791,262144 --variations-seed-version --mojo-platform-channel-handle=4072 /prefetch:8
    1⤵
      PID:2568

    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

      1844cbb4fb115ff99aa64616dbe90ff4

      SHA1

      38e49a812724580f4379f1616202de0ed2434398

      SHA256

      8e96f282c9e81249735bf1ede52493dc4fb51a8fb9b4b0a8150ff7e17c914ff2

      SHA512

      4e79e6814955134efe66690f907c0719025aae170c82425a9be95fc525f4a878987606a7ee2700fc59f82301e8abfbf4aa67573f8cf145a1349045d7eb402a00

    • C:\Users\Admin\AppData\Local\Temp\TCD33A3.tmp\sist02.xsl
      Filesize

      245KB

      MD5

      f883b260a8d67082ea895c14bf56dd56

      SHA1

      7954565c1f243d46ad3b1e2f1baf3281451fc14b

      SHA256

      ef4835db41a485b56c2ef0ff7094bc2350460573a686182bc45fd6613480e353

      SHA512

      d95924a499f32d9b4d9a7d298502181f9e9048c21dbe0496fa3c3279b263d6f7d594b859111a99b1a53bd248ee69b867d7b1768c42e1e40934e0b990f0ce051e

    • 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

      065a899baeb81ac67e2cf014f7c10ce3

      SHA1

      fc70f90df012e551bdf8d0f7432e96a7f02c2714

      SHA256

      7f1770a73d7b8772f84f06c09b175a457dc2c73c7522110b1a40f288eff7ecb9

      SHA512

      22b1983c030c22e432eeb8e0e83ddddb2b770bb5df08455114b0849bc0578f34a4a00af21f4d7cda17aa888dd9aa94470351fdc03fba23101e6d3e515c41ec6e

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

      3KB

      MD5

      af54e2148ce40046a5aa43b35b2be04b

      SHA1

      f5eb24b3ae6ccc9f06577f34c05525c6d8e8f738

      SHA256

      abc4422a45f4738a93e3f7de972b2b1cdbf54903db16349e1acce65dbb66aa3b

      SHA512

      ba410c5426d9f1aa1fa24924a16c22b7b70fee7e9ac95f3c21f43f2ceed0af8d9e67257b7891d8a6a8659a444b1c72a3c836db441436e11fcc17e1267930e1b1

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

      512KB

      MD5

      7776f968b949e58c388030fbabbdd1ef

      SHA1

      0c6ebef3501e55e30cd2891c2c616ff8d514671c

      SHA256

      77eb80419091f4b72a56965f65bed020d5f5bf0771f02ebdba6a77ddbd8fe6cc

      SHA512

      3572e4bf5225e0f4e5e7a21716a93a08a27af8857c8fc3e94fff6a1e2cea4eabc4e0fe80d5cbde3f7b88a52fe5e68e01f338cc6f3af8b1af484d2ab4430842c1

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

      512KB

      MD5

      f4777660c75d46c4ebbed4b328cd6d59

      SHA1

      6cdf1914dc3db1140884cf290a007204b09c574a

      SHA256

      79f140562585207273ddbb88277f4fd503245a59c5dfe17db52f215e0d129ce8

      SHA512

      9b86a9ed429c5a5bbed8917bd394bd8cdec36e291bcd9478942f8c8d834262ddb3fc71d6c75a3fd484a129d2913f493fa63ec6f03b45f9216a0b8041387024df

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

      512KB

      MD5

      eb929038f693ccb198faaf2cc81322e0

      SHA1

      207e5a8627bae72b1f497e9b1aa209c2632137f3

      SHA256

      426c9fcba7b7b04b81dd1f38813bfe0ec517e112808f56606536935e92b89231

      SHA512

      fd15f168a9f81de389b892331c4e011f735ab4fe78e33e62fc704b36d5cbfec9b69d45782765f1f74297c5bbc56e60f8f8f0b88f27b9dbc8db23423ea1d5e8d8

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

      512KB

      MD5

      064e79ddd703bfe88cff1f7c8273d679

      SHA1

      c69f7943024f840b3b35d9fa0d758e9ff3107a6d

      SHA256

      13941249166c42385ad249a865f263e6f2d5f736c9043d2b93d2b617997c4dfa

      SHA512

      c1139ea98e9b1cfcbc616fef932566a58f0aed821782e7614eaca6fbb1b33abb47c08957479164e7059340ccd3a45b4548333c5cbb1e4abb8db93a072b83e3a8

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

      512KB

      MD5

      aaad5f89707a792c1aed9f0bb8a5ec75

      SHA1

      c8baab767643cbc7983f1a3ec0633505d6507abf

      SHA256

      efd304232f47720a7fc22d6f26ae8ccbd13aa96800bcda5de7f0ad550ac10664

      SHA512

      9dee3a1f0ec83e16ad7fd0a7ca4f53edd576751092ed6306eebdf9ccbf669002757dbc8f8702420a3f64a35c09b04954139d667637e9432620fe0ba0024d47d3

    • C:\Windows\mydoc.rtf
      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

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

      512KB

      MD5

      c3388c25fb699f155a1c4e58db637dcb

      SHA1

      823c9aecef173afba5c2930a5cc4b58fe1930740

      SHA256

      e4d1db1544f042cf6741a1f650bdca9416e66c285c5efc763043be20b8645838

      SHA512

      be0d48ff6216203d6f445b181062da157eaf73a341d2e04e7d09e2abd15912a910e8045783388bc9a05fb7ec8bc010c7508f1e2dfa3270ea5164c9fa6ac58204

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

      512KB

      MD5

      4d2a631ebddbf76a81d001468e9dd607

      SHA1

      c13093602a50da163dc9fd497d6e15d97211f29a

      SHA256

      5916cc9dfb757dda3bd2d93abe42702b21471eae6b8da7e492e9a81fead94587

      SHA512

      7ec19b0a753c97647cf63aef0f868d662a2a3e13dfa42fae7353cce2bca877603e848172932091506fbdeba0c3b48434b87a2d6cf14f4ab20b64283ae77bf9e2

    • memory/544-0-0x0000000000400000-0x0000000000496000-memory.dmp
      Filesize

      600KB

    • memory/1016-39-0x00007FFC86C70000-0x00007FFC86C80000-memory.dmp
      Filesize

      64KB

    • memory/1016-38-0x00007FFC86C70000-0x00007FFC86C80000-memory.dmp
      Filesize

      64KB

    • memory/1016-36-0x00007FFC86C70000-0x00007FFC86C80000-memory.dmp
      Filesize

      64KB

    • memory/1016-37-0x00007FFC86C70000-0x00007FFC86C80000-memory.dmp
      Filesize

      64KB

    • memory/1016-35-0x00007FFC86C70000-0x00007FFC86C80000-memory.dmp
      Filesize

      64KB

    • memory/1016-43-0x00007FFC84310000-0x00007FFC84320000-memory.dmp
      Filesize

      64KB

    • memory/1016-40-0x00007FFC84310000-0x00007FFC84320000-memory.dmp
      Filesize

      64KB

    • memory/1016-601-0x00007FFC86C70000-0x00007FFC86C80000-memory.dmp
      Filesize

      64KB

    • memory/1016-602-0x00007FFC86C70000-0x00007FFC86C80000-memory.dmp
      Filesize

      64KB

    • memory/1016-600-0x00007FFC86C70000-0x00007FFC86C80000-memory.dmp
      Filesize

      64KB

    • memory/1016-603-0x00007FFC86C70000-0x00007FFC86C80000-memory.dmp
      Filesize

      64KB