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Analysis

  • max time kernel
    140s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    21/04/2024, 04:08

General

  • Target

    fe65239d9a26d09efe021f0a11a9ff3f_JaffaCakes118.exe

  • Size

    50KB

  • MD5

    fe65239d9a26d09efe021f0a11a9ff3f

  • SHA1

    be3ea504dc7da497466707dcccedbe1793cecad1

  • SHA256

    0a4d226989743aff380be3fa9590d729b7be1925aefd934894d6c36c9845c6d4

  • SHA512

    e198e224e507151878aadf2ae2c315b510d2d71d0cb0a1f6a86819d486e7acd8e10b6997ac22824b20c903e6a3afaf8f0b92ae930935c0986a9b035e5256169a

  • SSDEEP

    768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+IEAp+mTWtl6qF6:s9Z3KcR4mjD9r8226+0WTU

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fe65239d9a26d09efe021f0a11a9ff3f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fe65239d9a26d09efe021f0a11a9ff3f_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2696
    • C:\Users\Admin\AppData\Local\Temp\0lfeBQXxcpbNUQV.exe
      C:\Users\Admin\AppData\Local\Temp\0lfeBQXxcpbNUQV.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:832
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:2184

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\0lfeBQXxcpbNUQV.exe

    Filesize

    15KB

    MD5

    92f9de5aaf4021b73961e14303746f95

    SHA1

    331b792e347ebaf6b6b4c9ac65d742061e1a9f0a

    SHA256

    13c921999e5ff273007a610a8521bbc77d884b41d9cbbd41e045b3497909659c

    SHA512

    314749d46a3584213e55c7030e087e06f1e5bc5fbb8f99210a4e3014b9f44f3be7e791f48c570dd0abaf73584322ebb6be0d2ea5dbbfe343245cced22b172225

  • C:\Users\Admin\AppData\Local\Temp\Tar1A99.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • C:\Windows\CTS.exe

    Filesize

    35KB

    MD5

    93e5f18caebd8d4a2c893e40e5f38232

    SHA1

    fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

    SHA256

    a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

    SHA512

    986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

  • memory/832-27-0x00000000746A0000-0x0000000074C4B000-memory.dmp

    Filesize

    5.7MB

  • memory/832-17-0x0000000000CE0000-0x0000000000D20000-memory.dmp

    Filesize

    256KB

  • memory/832-124-0x00000000746A0000-0x0000000074C4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2184-18-0x0000000000150000-0x0000000000167000-memory.dmp

    Filesize

    92KB

  • memory/2696-16-0x00000000000B0000-0x00000000000C7000-memory.dmp

    Filesize

    92KB

  • memory/2696-11-0x0000000001380000-0x0000000001397000-memory.dmp

    Filesize

    92KB

  • memory/2696-13-0x00000000000B0000-0x00000000000C7000-memory.dmp

    Filesize

    92KB

  • memory/2696-0-0x0000000001380000-0x0000000001397000-memory.dmp

    Filesize

    92KB

  • memory/2696-127-0x00000000000B0000-0x00000000000C7000-memory.dmp

    Filesize

    92KB