Analysis

  • max time kernel
    139s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28/05/2024, 00:00

General

  • Target
    7b013a3308489cbabb6964a744bc70ee_JaffaCakes118.exe
  • Size 130KB
  • Sample240528-aahxesgb23
  • SHA256 163649231f5422ad974ff6edb760b3eac67c17c15440e4dd4d286b54b87e9567
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 32 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 6 IoCs
  • Modifies Internet Explorer settings 1 TTPs 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1200
      • C:\Users\Admin\AppData\Local\Temp\7b013a3308489cbabb6964a744bc70ee_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\7b013a3308489cbabb6964a744bc70ee_JaffaCakes118.exe"
        2⤵
        • Loads dropped DLL
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2020
        • C:\Users\Admin\AppData\Local\Temp\nsj8BED.tmp\9377mycs_Y_mgaz2_01.exe
          9377mycs_Y_mgaz2_01.exe
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in Program Files directory
          • Suspicious use of WriteProcessMemory
          PID:2264
          • C:\Program Files (x86)\9377÷ÈÓ°´«Ëµ\MYLogger.exe
            "C:\Program Files (x86)\9377÷ÈÓ°´«Ëµ\MYLogger.exe" "C:\Program Files (x86)\9377÷ÈÓ°´«Ëµ\MeiYing.dll" 2
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1988
          • C:\Program Files (x86)\9377÷ÈÓ°´«Ëµ\MYLogger.exe
            "C:\Program Files (x86)\9377÷ÈÓ°´«Ëµ\MYLogger.exe" "C:\Program Files (x86)\9377÷ÈÓ°´«Ëµ\MeiYing.dll" 1
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:2112
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" http://k.alishantea-tw.com/7b013a3308489cbabb6964a744bc70ee_JaffaCakes118.exe/40.jpg
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1148
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1148 CREDAT:275457 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1596

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          MYLogger.ini

          • Path C:\Program Files (x86)\9377÷ÈÓ°´«Ëµ\MYLogger.ini
          • Size 230B
          • SHA256 6c8b496525477dda3da66c510cf4ba334968c672268ad10ccb578ab01ca72385
          • MD5 SHA1 SHA512

          MeiYing.dll

          • Path C:\Program Files (x86)\9377÷ÈÓ°´«Ëµ\MeiYing.dll
          • Size 463KB
          • SHA256 aab3e362c47d454e48f265213bab6e582c3b5c6b7167e54d477c68b9d3dc5b8e
          • MD5 SHA1 SHA512 SSDEEP

          uninstall.exe

          • Path C:\Program Files (x86)\9377÷ÈÓ°´«Ëµ\uninstall.exe
          • Size 76KB
          • SHA256 68237bdfcda9fdf8747e65df044a8b3668ea5dd26451335e78bf311999cf05e5
          • MD5 SHA1 SHA512 SSDEEP

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
          • Size 68KB
          • SHA256 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
          • MD5 SHA1 SHA512 SSDEEP

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 f279b1ee9981cba9eaf925930055d42fd3e6730a5945bf468dd338e64099128f
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 290057e0fc7c4cb925b899d6e9333fb2d4171b6eafc62668334b43ce8c97a668
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 f20fd85beeca4167b015dc3af08b316de2f6d0c71f06c186f2c85841fde1fa76
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 413053cf68e6403e0d8541396437a46493b2927007b170551b617a9bc4253589
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 6bda88a9a3223f341af0792fa50c5ff02b490c4bd1f3f829f752b0e5c3750b30
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 fe2f01df161dc129f7a31654c7fcb6bbe12d45499a2539912b21d0ad9f4e42ec
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 53e026962ef2c526ea2fb52723b95847be32f785344f983b73381430c78a65a8
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 5d22492a4448bace82b9dea3115f4e49199d7f4b33f4a5ca0c85d4e6f1ef7f16
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 eb9e95794a86ac81245d9a6d4189918af3f4263fd47c8bb20ead6e7140ecf97c
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 a43c14b8daa832b4e01a7f5f8f0a8f3a044528edd3baf6849851d160d19f8c29
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 f142e79df8bb1ee3a4b0c8a8d762d9af4218d11df7d684419fdcb41f2c6e4cbe
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 c576a28bece191962e47c73a202c6e3c096041136186eab921f633cc9f404060
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 ace18a2c5eb404e8d2292b6b79a9f2e04aa606ba03e2c4eac1e4cf3a96f85090
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 34872e2b7178c85613992c81386ab997767e1a43a93c84c4f97d63a4522f6746
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 da39063096c15672599c805ae43d42fdccd9ef4a7c9b1086487612f72a188acb
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 1c3ee0f4649ef28574c6f2de97a7c8390e69e5253fb0629448b60d45e22c24c9
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 740ef75c4bf59ec22287eab0de9ca56c2a58fa8da004adcf1b3b3eb781f1e629
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 cc03248939aff15b7136884dd9f0351ad3ffdf9365296754223f51a94af045a7
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 e149737f8efdfa75d43c2aa34089972e8093622d3df795d3781e464bf81935fd
          • MD5 SHA1 SHA512

          CabB34A.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\CabB34A.tmp
          • Size 65KB
          • SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
          • MD5 SHA1 SHA512 SSDEEP

          TarB47B.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\TarB47B.tmp
          • Size 177KB
          • SHA256 67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
          • MD5 SHA1 SHA512 SSDEEP

          1.ico

          • Path C:\Users\Admin\AppData\Local\Temp\nsj8BED.tmp\1.ico
          • Size 160KB
          • SHA256 862709c2c33bc7df87b87a50f03350d8068cdbddaccafd7a4b56235a653a326c
          • MD5 SHA1 SHA512 SSDEEP

          9377÷ÈÓ°´«Ëµ.lnk

          • Path C:\Users\Public\Desktop\9377÷ÈÓ°´«Ëµ.lnk
          • Size 1KB
          • SHA256 6449a8eb6c08949b518783c803d19039dc0e45f5ca35b6b523d0561ed2dfcc84
          • MD5 SHA1 SHA512

          MYLogger.exe

          • Path \Program Files (x86)\9377÷ÈÓ°´«Ëµ\MYLogger.exe
          • Size 377KB
          • SHA256 cc6d069c6e4ce7da54901094753cd9df36dcb095b9ead758e809887c2643a5ba
          • MD5 SHA1 SHA512 SSDEEP

          Uninstall.exe

          • Path \Program Files (x86)\Feisu8\Uninstall.exe
          • Size 130KB
          • SHA256 163649231f5422ad974ff6edb760b3eac67c17c15440e4dd4d286b54b87e9567
          • MD5 SHA1 SHA512 SSDEEP

          System.dll

          • Path \Users\Admin\AppData\Local\Temp\nsj43A7.tmp\System.dll
          • Size 11KB
          • SHA256 dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
          • MD5 SHA1 SHA512 SSDEEP

          ip.dll

          • Path \Users\Admin\AppData\Local\Temp\nsj43A7.tmp\ip.dll
          • Size 16KB
          • SHA256 7744a495ceacf8584d4f6786699e94a09935a94929d4861142726562af53faa4
          • MD5 SHA1 SHA512 SSDEEP

          9377mycs_Y_mgaz2_01.exe

          • Path \Users\Admin\AppData\Local\Temp\nsj8BED.tmp\9377mycs_Y_mgaz2_01.exe
          • Size 649KB
          • SHA256 dc0ddb5f676959234ec39c703187a741af91d8e6e17d084dfa256f3770336366
          • MD5 SHA1 SHA512 SSDEEP

          Inetc.dll

          • Path \Users\Admin\AppData\Local\Temp\nsj8BED.tmp\Inetc.dll
          • Size 20KB
          • SHA256 6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6
          • MD5 SHA1 SHA512 SSDEEP

          NSISdl.dll

          • Path \Users\Admin\AppData\Local\Temp\nsj8BED.tmp\NSISdl.dll
          • Size 14KB
          • SHA256 fd0e8be2135f3d326b65520383a3468c3983fa32c9c93594d986b16709d80f28
          • MD5 SHA1 SHA512 SSDEEP

          System.dll

          • Path \Users\Admin\AppData\Local\Temp\nsj8BED.tmp\System.dll
          • Size 11KB
          • SHA256 dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3
          • MD5 SHA1 SHA512 SSDEEP

          nsProcess.dll

          • Path \Users\Admin\AppData\Local\Temp\nsj8BED.tmp\nsProcess.dll
          • Size 4KB
          • SHA256 95fe9d92512ff2318cc2520311ef9145b2cee01209ab0e1b6e45c7ce1d4d0e89
          • MD5 SHA1 SHA512

          memory/1200-160-0x0000000003820000-0x0000000003821000-memory.dmp