Analysis

  • max time kernel
    137s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-08-2024 18:47

General

  • Target

    bf3278465406b491b1e311f2dfe6a44e_JaffaCakes118.exe

  • Size

    138KB

  • MD5

    bf3278465406b491b1e311f2dfe6a44e

  • SHA1

    5b0a11e0e6b0df23e64ffb6bc80c8d71b14021e5

  • SHA256

    5a757a91732dbe9c76b92d7b86501897b14d6aa92074d05ae7d0fd822d3349e9

  • SHA512

    44a8e97ea6fb799a5a19b5bc89c3bbf6bdb7dbb684a126f96cb5f6734b0fa7d803be39eeeb2038b72fdbe0a6ac027dfc148b9226775bf12c86240cde867f5652

  • SSDEEP

    3072:GSaP0Z050tfQQMvmkBN3WvRrMogdE/7/pPwyP:GSaPC050tfQwkv3wwouE9P

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf3278465406b491b1e311f2dfe6a44e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\bf3278465406b491b1e311f2dfe6a44e_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3148
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c start iexplore -embedding
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4040
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" -embedding
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1416
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1416 CREDAT:17410 /prefetch:2
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:4228
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\cWY63AB.bat"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4180
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3148 -s 564
      2⤵
      • Program crash
      PID:692
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3148 -ip 3148
    1⤵
      PID:3032

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verDCF2.tmp

      Filesize

      15KB

      MD5

      1a545d0052b581fbb2ab4c52133846bc

      SHA1

      62f3266a9b9925cd6d98658b92adec673cbe3dd3

      SHA256

      557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

      SHA512

      bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\GENTSNHI\suggestions[1].en-US

      Filesize

      17KB

      MD5

      5a34cb996293fde2cb7a4ac89587393a

      SHA1

      3c96c993500690d1a77873cd62bc639b3a10653f

      SHA256

      c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

      SHA512

      e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

    • C:\Users\Admin\AppData\Local\Temp\cWY63AB.bat

      Filesize

      188B

      MD5

      e9bdccb1ad61a6757db09aaccd42adb9

      SHA1

      2811a92636f6c9f2d8140ba548aa7b84b5e0bef6

      SHA256

      2def1b4e48fe5cadc358d1ad2c20fda04ea25df3ee2f63bd1bd6b80d2e55d6d7

      SHA512

      cee0b1559cd5d6a4a6bf78ef28caf867e7b28d99494d322e383af5591aa47c7ab50564aa5155a160739dd988fb8e6515f9e0a1d621df7d5475174cfd478f0cff

    • C:\Users\Admin\AppData\Local\Temp\cWY63AB.tmp

      Filesize

      72KB

      MD5

      0343c8bd4abbb882345e1b70ad53c38b

      SHA1

      a68b56aa6edf4c60d02ffa9ee827f07b13961688

      SHA256

      5a4227ac3ce660043f15fa602ca40535420e3e8f17da393fa7d38cd873c04082

      SHA512

      2e2d0072eae4fd04c6e55435d8dda219c0278d2fbea390440e17b473d63862b81d0ef48c6bb2a4d746e9a4cb0aeea7828a15b76d9bb424cf616cf9d7e1d735f6