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Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    21/05/2024, 05:01

General

  • Target

    621cfb12233c7432f6881347bded5a57_JaffaCakes118.exe

  • Size

    132KB

  • MD5

    621cfb12233c7432f6881347bded5a57

  • SHA1

    ab871369a1d336031620c6938d87a9ef69ee03ba

  • SHA256

    07b22a0e85c4f95916a66a6f603adbfd5f152fa2dcaf19603fb95e0dafcc099c

  • SHA512

    c5e365b035ca4dbfe98b2d483dd398c247e688155ca272fcd8271ead64cd23a1a7a928172d8c258c8f48290d9097050defaf873bde60570d5465ab341045266d

  • SSDEEP

    3072:+D4beJt/UAKF4ba3Hwi573QVx78b4Mt2rXH4Mzm:+D4+t/Uia3H153KK2EMS

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Modifies file permissions 1 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • NTFS ADS 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\621cfb12233c7432f6881347bded5a57_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\621cfb12233c7432f6881347bded5a57_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • NTFS ADS
    • Suspicious use of WriteProcessMemory
    PID:1876
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c icacls "C:\ProgramData\{SEL5T3RM-TBNY-TZWZ-ILT2-JAVVDENCK7IH}" /inheritance:e /deny "*S-1-1-0:(R,REA,RA,RD)" "*S-1-5-7:(R,REA,RA,RD)"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2944
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\ProgramData\{SEL5T3RM-TBNY-TZWZ-ILT2-JAVVDENCK7IH}" /inheritance:e /deny "*S-1-1-0:(R,REA,RA,RD)" "*S-1-5-7:(R,REA,RA,RD)"
        3⤵
        • Modifies file permissions
        PID:2484
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c icacls "C:\ProgramData\{SEL5T3RM-TBNY-TZWZ-ILT2-JAVVDENCK7IH}" /inheritance:e /deny "SYSTEM:(R,REA,RA,RD)"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2508
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\ProgramData\{SEL5T3RM-TBNY-TZWZ-ILT2-JAVVDENCK7IH}" /inheritance:e /deny "SYSTEM:(R,REA,RA,RD)"
        3⤵
        • Modifies file permissions
        PID:2564
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c icacls "C:\ProgramData\{SEL5T3RM-TBNY-TZWZ-ILT2-JAVVDENCK7IH}" /inheritance:e /deny "Administrators:(R,REA,RA,RD)"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2608
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\ProgramData\{SEL5T3RM-TBNY-TZWZ-ILT2-JAVVDENCK7IH}" /inheritance:e /deny "Administrators:(R,REA,RA,RD)"
        3⤵
        • Modifies file permissions
        PID:2260
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c icacls "C:\ProgramData\{SEL5T3RM-TBNY-TZWZ-ILT2-JAVVDENCK7IH}" /inheritance:e /deny "Users:(R,REA,RA,RD)"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2628
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\ProgramData\{SEL5T3RM-TBNY-TZWZ-ILT2-JAVVDENCK7IH}" /inheritance:e /deny "Users:(R,REA,RA,RD)"
        3⤵
        • Modifies file permissions
        PID:2492
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c icacls "C:\ProgramData\{SEL5T3RM-TBNY-TZWZ-ILT2-JAVVDENCK7IH}" /inheritance:e /deny "Admin:(R,REA,RA,RD)"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2360
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\ProgramData\{SEL5T3RM-TBNY-TZWZ-ILT2-JAVVDENCK7IH}" /inheritance:e /deny "Admin:(R,REA,RA,RD)"
        3⤵
        • Modifies file permissions
        PID:2396
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /tn {JU6QO627-JI7J-HD4M-H1EN-HPFG8HZX95YY} /tr C:\ProgramData\{SEL5T3RM-TBNY-TZWZ-ILT2-JAVVDENCK7IH}\J6WP.exe /ri 10 /st 00:00 /sc daily /du 9999:59 /f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2904
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /tn {JU6QO627-JI7J-HD4M-H1EN-HPFG8HZX95YY} /tr C:\ProgramData\{SEL5T3RM-TBNY-TZWZ-ILT2-JAVVDENCK7IH}\J6WP.exe /ri 10 /st 00:00 /sc daily /du 9999:59 /f
        3⤵
        • Creates scheduled task(s)
        PID:2532
    • C:\ProgramData\{SEL5T3RM-TBNY-TZWZ-ILT2-JAVVDENCK7IH}\J6WP.exe
      "C:\ProgramData\{SEL5T3RM-TBNY-TZWZ-ILT2-JAVVDENCK7IH}\J6WP.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2416
      • C:\Windows\SysWOW64\icacls.exe
        "C:\Windows\System32\icacls.exe"
        3⤵
        • Modifies file permissions
        • Suspicious use of WriteProcessMemory
        PID:2688
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2688 -s 864
          4⤵
          • Program crash
          PID:2132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\{SEL5T3RM-TBNY-TZWZ-ILT2-JAVVDENCK7IH}\J6WP.exe

    Filesize

    132KB

    MD5

    621cfb12233c7432f6881347bded5a57

    SHA1

    ab871369a1d336031620c6938d87a9ef69ee03ba

    SHA256

    07b22a0e85c4f95916a66a6f603adbfd5f152fa2dcaf19603fb95e0dafcc099c

    SHA512

    c5e365b035ca4dbfe98b2d483dd398c247e688155ca272fcd8271ead64cd23a1a7a928172d8c258c8f48290d9097050defaf873bde60570d5465ab341045266d

  • C:\Users\Admin\AppData\Roaming\7601.17727.amd64fre.win7sp1_gdr.111118-2330_x86W.dll

    Filesize

    140B

    MD5

    13fc442186607d49c043407d154494d1

    SHA1

    d6b3393fcd61ace72e7d85d6ec5429dfcea3d9af

    SHA256

    6e51646c19ce755ccde4d96e265224b7f908a2059f0485855d3dbe93dbcaebd1

    SHA512

    bdce2e678f831c5b2dcba8d6cf2f851dfd91386a31aadda67f6c9d32b1cfada2d40582ab6f1658f5fb4cee8f627f614a62425ab828c7a3fba4d0b628b81a29d5

  • memory/2688-25-0x0000000000400000-0x0000000000425000-memory.dmp

    Filesize

    148KB

  • memory/2688-29-0x0000000000400000-0x0000000000425000-memory.dmp

    Filesize

    148KB

  • memory/2688-33-0x0000000000400000-0x0000000000425000-memory.dmp

    Filesize

    148KB

  • memory/2688-36-0x0000000000400000-0x0000000000425000-memory.dmp

    Filesize

    148KB

  • memory/2688-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2688-31-0x0000000000400000-0x0000000000425000-memory.dmp

    Filesize

    148KB

  • memory/2688-27-0x0000000000400000-0x0000000000425000-memory.dmp

    Filesize

    148KB

  • memory/2688-37-0x0000000000400000-0x0000000000425000-memory.dmp

    Filesize

    148KB

  • memory/2688-39-0x0000000000400000-0x0000000000425000-memory.dmp

    Filesize

    148KB