Analysis

  • max time kernel
    146s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-04-2024 20:23

General

  • Target

    e5c8465b257f9f5c6b422f38d66af4f9_JaffaCakes118.exe

  • Size

    30KB

  • MD5

    e5c8465b257f9f5c6b422f38d66af4f9

  • SHA1

    52b609ee6f9c9d9b525731bfd8a3519298c34488

  • SHA256

    a4aa441fe90301ac47c93688a4f652042224fa740406ad62b65befcb3e5917ea

  • SHA512

    204763fa757b2749d1483b018ecaaeeca54f3a4fdc6aceddaa83f77b42d1eb08be8474d3aa037bc935bfb99323646959a89d85d6d43671ad7c9d904506f9efca

  • SSDEEP

    768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFAK:SKcR4mjD9r823FAK

Malware Config

Signatures

  • Executes dropped EXE 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 7 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
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e5c8465b257f9f5c6b422f38d66af4f9_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e5c8465b257f9f5c6b422f38d66af4f9_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1480
    • 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:920

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

    Filesize

    352KB

    MD5

    def8139c87581c9d2ca3061e851b67eb

    SHA1

    c888e6f7683b85c331f2bfd3f5a799932d394fc6

    SHA256

    6881d0551f1eb8cae7153344767017547f4b6bbabab44a82e7453d1db076093d

    SHA512

    095682e93459ec5efafc2a9f5b13e66684fe3790c16d34bd2c68b7fd3886d2cdb0838a60ab61fc7411e6478cd11165ee8d15a00767e1824c97cd5bd164725e2e

  • C:\Users\Admin\AppData\Local\Temp\jj8x3rj9IqSKg9z.exe

    Filesize

    30KB

    MD5

    5804916f771131f72a2255b6ce113e86

    SHA1

    4a80e13321a176a692b4769471947106c28bdc09

    SHA256

    09070c5e55122113f10e8c38e4514a06848d37e18922429551dc1e0909876702

    SHA512

    f78b3dc74ac2ab6076e11af6fdfa0224e8a69fbca4e9f7dfaf1b3d3e2930c5bf4a8909632e4aa394914b539778eba6192f2cc40482094761f888b0a6e3856981

  • C:\Windows\CTS.exe

    Filesize

    29KB

    MD5

    70aa23c9229741a9b52e5ce388a883ac

    SHA1

    b42683e21e13de3f71db26635954d992ebe7119e

    SHA256

    9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

    SHA512

    be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

  • memory/920-9-0x00000000009A0000-0x00000000009B7000-memory.dmp

    Filesize

    92KB

  • memory/920-32-0x00000000009A0000-0x00000000009B7000-memory.dmp

    Filesize

    92KB

  • memory/1480-0-0x0000000000790000-0x00000000007A7000-memory.dmp

    Filesize

    92KB

  • memory/1480-7-0x0000000000790000-0x00000000007A7000-memory.dmp

    Filesize

    92KB