Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/04/2024, 22:29

General

  • Target
    f2124e5e33d26f88569eed26ab77e01c_JaffaCakes118.exe
  • Size 392KB
  • Sample240415-2d9m4aaa82
  • SHA256 9dff280f82328628ce03aa3a4a7142b5341f0c360a45307def8e521ddc414f44
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Drops file in Drivers directory 2 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 33 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 26 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 64 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f2124e5e33d26f88569eed26ab77e01c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f2124e5e33d26f88569eed26ab77e01c_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4836
    • C:\Users\Admin\AppData\Local\Temp\setup.exe
      C:\Users\Admin\AppData\Local\Temp\setup.exe 00020402
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1628
      • C:\Users\Admin\AppData\Local\Temp\setup\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\setup\setup.exe" 00020402
        3⤵
        • Drops file in Drivers directory
        • Sets service image path in registry
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Installs/modifies Browser Helper Object
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:1252
        • C:\Program Files\CNNIC\Cdn\cdnup.exe
          "C:\Program Files\CNNIC\Cdn\cdnup.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetWindowsHookEx
          PID:5056

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        setup.exe

        • Path C:\Users\Admin\AppData\Local\Temp\setup.exe
        • Size 333KB
        • SHA256 ab07f916aa824b085c5612080ff0984c065607d32d6453e6fb1ad958bfa94340
        • MD5 SHA1 SHA512 SSDEEP

        cdnaux.dll

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdnaux.dll
        • Size 36KB
        • SHA256 a168517f1428b8926cf4c161b6c1cca1dd17b85b98766a15f2d582391283221a
        • MD5 SHA1 SHA512 SSDEEP

        cdnctr.exe

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdnctr.exe
        • Size 56KB
        • SHA256 8b4ed9ae5cc04ed0bfa36ac0c7f4853e9b3d03078387fd33cb595b3a15ec4443
        • MD5 SHA1 SHA512 SSDEEP

        cdndet.dll

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdndet.dll
        • Size 76KB
        • SHA256 fae04d0e4f5a0d4319f50a0163aab03c739e4e3bd48347f1bb6f54a0ebf93c26
        • MD5 SHA1 SHA512 SSDEEP

        cdndisp.dat

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdndisp.dat
        • Size 408B
        • SHA256 d834262537368b143c1e39801122c7045bfe1da14f708a935e44a46963deaaed
        • MD5 SHA1 SHA512

        cdnglo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdnglo.dll
        • Size 84KB
        • SHA256 bc1552201f7cf45185c78540d2a894e6e23250c4187014fbd18b123e5429ded9
        • MD5 SHA1 SHA512 SSDEEP

        cdnhint.dat

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdnhint.dat
        • Size 617B
        • SHA256 608a870b870ac5beebdf9d9fa6f85d5abde08274c550ab968403b0409d65030a
        • MD5 SHA1 SHA512

        cdniehlp.dll

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdniehlp.dll
        • Size 112KB
        • SHA256 a71ace180d93d9dfd8d9c3027c051a8e2d4cb39db26eb7243cc349e8760e489c
        • MD5 SHA1 SHA512 SSDEEP

        cdnins.dll

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdnins.dll
        • Size 72KB
        • SHA256 871888a6706c56fe3441dd4e2ad556348b31c9337e3984a24fe40ee14bdff60b
        • MD5 SHA1 SHA512 SSDEEP

        cdnns.dll

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdnns.dll
        • Size 22KB
        • SHA256 23493233c886b2e02e48c4b47177b814aaa988c0f0f3e4ec8f168242fec1e0bd
        • MD5 SHA1 SHA512 SSDEEP

        cdnprev.dat

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdnprev.dat
        • Size 332B
        • SHA256 fbad62bd59eb03bcf515a036d9d4c9b100efcf7aa22e17e46beeeb25eeeff858
        • MD5 SHA1 SHA512

        cdnprh.dll

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdnprh.dll
        • Size 40KB
        • SHA256 17b60d34722ff32014ce272f568b30774f1607f5230e24b88381ab99aed72d5a
        • MD5 SHA1 SHA512 SSDEEP

        cdnprot.dat

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdnprot.dat
        • Size 3KB
        • SHA256 ae8e2c53bcc69b4366ed3a441e5dc4825fb62f9774d6a4521322a1b239578ea4
        • MD5 SHA1 SHA512

        cdnprot.sys

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdnprot.sys
        • Size 45KB
        • SHA256 a50cbd231925f0a63f8af56a63783de9b7f30feadee66da868056b9ac2f25c00
        • MD5 SHA1 SHA512 SSDEEP

        cdnspie.dll

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdnspie.dll
        • Size 76KB
        • SHA256 42d0748452991d816a1bc6c52446259d4c1cd44388a48d25e4a1d98674c93b63
        • MD5 SHA1 SHA512 SSDEEP

        cdntdns.dll

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdntdns.dll
        • Size 64KB
        • SHA256 fae2c6765a6643e4779900098d723bc08265092f47e07ab4ad808c8d27cfa5c8
        • MD5 SHA1 SHA512 SSDEEP

        cdntran.dat

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdntran.dat
        • Size 1KB
        • SHA256 be84e1f1216979f765c048617636afbfc8092338800348456051f81bfea2c838
        • MD5 SHA1 SHA512

        cdntran.sys

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdntran.sys
        • Size 12KB
        • SHA256 9c6a75ea1e8198efaac0d037e5b9fd41fa1e84a39dda80457dccad03a190b167
        • MD5 SHA1 SHA512 SSDEEP

        cdnunins.exe

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdnunins.exe
        • Size 68KB
        • SHA256 bee606d848d460b632d3be66dba2b88ce45b16695bb6afc0905c283764973b5f
        • MD5 SHA1 SHA512 SSDEEP

        cdnup.exe

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdnup.exe
        • Size 68KB
        • SHA256 d499ed2f18b0fe4c8407b54bc2d53e6d8f3d99e398c42bc33fc3525b10697b24
        • MD5 SHA1 SHA512 SSDEEP

        cdnvers.dat

        • Path C:\Users\Admin\AppData\Local\Temp\setup\cdnvers.dat
        • Size 1KB
        • SHA256 3cf66a39c25ea39c03237a955d92690907d91a28c3d1e92a36dcaa12fbdc0f3c
        • MD5 SHA1 SHA512

        client.dll

        • Path C:\Users\Admin\AppData\Local\Temp\setup\client.dll
        • Size 40KB
        • SHA256 1551ec21970495f40f423341bcdcbde5744560418e47c01c6cccdeb74f6e6946
        • MD5 SHA1 SHA512 SSDEEP

        idnconv.dll

        • Path C:\Users\Admin\AppData\Local\Temp\setup\idnconv.dll
        • Size 228KB
        • SHA256 55d8110ebe08d94c63ce16558fd7e897cc7c6aedf1bb3f52b0d383b2d17dc576
        • MD5 SHA1 SHA512 SSDEEP

        imaconv.dll

        • Path C:\Users\Admin\AppData\Local\Temp\setup\imaconv.dll
        • Size 36KB
        • SHA256 862f5ea1d81c1bd4a5e8bbff75a7de1cbac7085bb5f2e822d90a7318783af924
        • MD5 SHA1 SHA512 SSDEEP

        imaoe.dll

        • Path C:\Users\Admin\AppData\Local\Temp\setup\imaoe.dll
        • Size 52KB
        • SHA256 ef08403922e31c5bd2bd85500b7292dc60cd75786275625e2a51df96e992feeb
        • MD5 SHA1 SHA512 SSDEEP

        imaol.dll

        • Path C:\Users\Admin\AppData\Local\Temp\setup\imaol.dll
        • Size 92KB
        • SHA256 eda38c4311e2780d0df7d6db8bb9ac158eb8626aaca1aeb5fe44dc6d580502a6
        • MD5 SHA1 SHA512 SSDEEP

        setup.exe

        • Path C:\Users\Admin\AppData\Local\Temp\setup\setup.exe
        • Size 28KB
        • SHA256 3d20d973651546be8d370ff9013bbdc03282808a212731b92852f0b789634064
        • MD5 SHA1 SHA512 SSDEEP

        src.dat

        • Path C:\Users\Admin\AppData\Local\Temp\setup\src.dat
        • Size 108B
        • SHA256 a92763840270c35988cb60aae2ca338577219eff7b00d17d0993d9bc43aef39b
        • MD5 SHA1 SHA512

        src.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\src.tmp
        • Size 108B
        • SHA256 43650ac5bc797c880bffa016c3acb2be9ef1bc215d3011dbbd69db67e2b94e67
        • MD5 SHA1 SHA512

        cdn.dll

        • Path C:\Windows\SysWOW64\cdn.dll
        • Size 32KB
        • SHA256 0ca6f98d230813f05019f5ecf67b8b460aea421b3a9020e3e4d3bdf1d8f01988
        • MD5 SHA1 SHA512 SSDEEP

        memory/1252-130-0x00000000033C0000-0x0000000003571000-memory.dmp

        memory/1252-91-0x00000000006C0000-0x00000000006E0000-memory.dmp

        memory/1252-113-0x00000000020C0000-0x00000000020D8000-memory.dmp

        memory/1252-150-0x00000000020A0000-0x00000000020AC000-memory.dmp

        memory/5056-185-0x00000000020B0000-0x00000000020C4000-memory.dmp

        memory/5056-188-0x0000000002140000-0x000000000214D000-memory.dmp

        memory/5056-189-0x0000000002190000-0x00000000021A4000-memory.dmp

        memory/5056-190-0x0000000002FA0000-0x0000000003151000-memory.dmp