Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/05/2024, 13:59

General

  • Target
    846411f3355d163525ca69b1490f7efc_JaffaCakes118.exe
  • Size 277KB
  • Sample240530-rapteaca85
  • SHA256 05e33c8feffb663b27884fa6533681ee0dedfb7bf4098e004dead95c717e8870
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\846411f3355d163525ca69b1490f7efc_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\846411f3355d163525ca69b1490f7efc_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1240
    • C:\Users\Admin\AppData\Local\Temp\nst3635.tmp\installer.exe
      C:\Users\Admin\AppData\Local\Temp\nst3635.tmp\installer.exe 4f96c0af-ae48-469a-a08c-2bb95bc06f2f.exe /t /dT131891819S /e2831539 /u4f96c0af-ae48-469a-a08c-2bb95bc06f2f
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:1368
      • C:\Users\Admin\AppData\Local\Temp\nst3635.tmp\4f96c0af-ae48-469a-a08c-2bb95bc06f2f.exe
        "C:\Users\Admin\AppData\Local\Temp\nst3635.tmp\4f96c0af-ae48-469a-a08c-2bb95bc06f2f.exe" /t /dT131891819S /e2831539 /u4f96c0af-ae48-469a-a08c-2bb95bc06f2f
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4620

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        8EDCF682921FE94F4A02A43CD1A28E6B

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EDCF682921FE94F4A02A43CD1A28E6B
        • Size 604B
        • SHA256 5fab31aa7540eaebb07d0315e540564b06d612b4b4eb3f2a645fd86a59e6b37c
        • MD5 SHA1 SHA512

        955CAB6FF6A24D5820D50B5BA1CF79C7_AD9E7615297A3A83320AACE5801A04F9

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\955CAB6FF6A24D5820D50B5BA1CF79C7_AD9E7615297A3A83320AACE5801A04F9
        • Size 5B
        • SHA256 bebe2853a3485d1c2e5c5be4249183e0ddaff9f87de71652371700a89d937128
        • MD5 SHA1 SHA512

        8EDCF682921FE94F4A02A43CD1A28E6B

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EDCF682921FE94F4A02A43CD1A28E6B
        • Size 188B
        • SHA256 8d657d08363e94b1d72b069e1c788596507c8d051c779a7082bc14f1febead36
        • MD5 SHA1 SHA512

        955CAB6FF6A24D5820D50B5BA1CF79C7_AD9E7615297A3A83320AACE5801A04F9

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\955CAB6FF6A24D5820D50B5BA1CF79C7_AD9E7615297A3A83320AACE5801A04F9
        • Size 404B
        • SHA256 4d0938146d044767c4fc1a0704a63f83ac2b2b32963ef3ccdc8e90bc51b9d434
        • MD5 SHA1 SHA512

        4f96c0af-ae48-469a-a08c-2bb95bc06f2f.exe

        • Path C:\Users\Admin\AppData\Local\Temp\nst3635.tmp\4f96c0af-ae48-469a-a08c-2bb95bc06f2f.exe
        • Size 256KB
        • SHA256 d1763b911eebce060a4c479190e83ff5747f5e75f938fb1cb23d5fcaba249e35
        • MD5 SHA1 SHA512 SSDEEP

        installer.exe

        • Path C:\Users\Admin\AppData\Local\Temp\nst3635.tmp\installer.exe
        • Size 214KB
        • SHA256 7358afae03a24b31c0d82ee4e5fd2f17cafe6c3bdd8e26326aa4118f2169f736
        • MD5 SHA1 SHA512 SSDEEP

        nsExec.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nst3635.tmp\nsExec.dll
        • Size 8KB
        • SHA256 7298024a36310b7c4c112be87b61b62a0b1be493e2d5252a19e5e976daf674ce
        • MD5 SHA1 SHA512 SSDEEP

        memory/1240-57-0x0000000000400000-0x0000000000439000-memory.dmp

        memory/1368-11-0x0000000074C20000-0x00000000751D1000-memory.dmp

        memory/1368-10-0x0000000074C20000-0x00000000751D1000-memory.dmp

        memory/1368-53-0x0000000074C20000-0x00000000751D1000-memory.dmp

        memory/1368-9-0x0000000074C22000-0x0000000074C23000-memory.dmp

        memory/4620-44-0x0000000074C20000-0x00000000751D1000-memory.dmp

        memory/4620-45-0x0000000074C20000-0x00000000751D1000-memory.dmp

        memory/4620-49-0x0000000074C20000-0x00000000751D1000-memory.dmp

        memory/4620-51-0x0000000074C20000-0x00000000751D1000-memory.dmp