Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2024 16:41

General

  • Target

    be4aaa0310e3abf9ec69b1d39a65455a_JaffaCakes118.exe

  • Size

    55KB

  • MD5

    be4aaa0310e3abf9ec69b1d39a65455a

  • SHA1

    3f7a8cb2040a8fc9ed726e214d747b006dcfbef3

  • SHA256

    12fade22383405e2a7c481cd8184d80dbbc9d4764742e49fa469ec8e913a5947

  • SHA512

    d42fb5372f1f277b9b446a98f046357e9655fece9690fa3fc6937d4a4c1122c55b0b35906a2625a15943ab80249b8e1e35f4aea00a860f1df4c78827d5293306

  • SSDEEP

    768:Oe3PFaDVyOQgljLDKRJyM3BmsHzSB4us/wJJapg4RoSMZeUZB/QosWpH+DrCUpfw:V3cpyORJLuB4P4AJJv4Romu/9tpvUZg

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 9 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\be4aaa0310e3abf9ec69b1d39a65455a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\be4aaa0310e3abf9ec69b1d39a65455a_JaffaCakes118.exe"
    1⤵
    • Modifies visibility of file extensions in Explorer
    • Loads dropped DLL
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2228
    • C:\Windows\SysWOW64\attrib.exe
      "C:\Windows\System32\attrib.exe" "C:\Program Files (x86)\Microsoft\ie13\Internat Explorer" +s
      2⤵
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:2808
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp.bat" "
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2732

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    214B

    MD5

    cc86e9d8f9b05be9d6ce36f457c8223c

    SHA1

    44ca549850cc0cfaaa8f051918015b31ec91c1cf

    SHA256

    4d2a7a12ee560e3e5e9bd4144f9ee24ee326c8589b578ee798948dd0e5d1c32e

    SHA512

    3708cc37bd7fb65b90234ec67f0a3ef0b5fdc67e7a4f0e2e7a48759d2e6f3d73e798c742eb60cb8b89564efa5c2b0656aff05087df2007b33e36ac90c84e4f24

  • \Users\Admin\AppData\Local\Temp\nseFEFA.tmp\System.dll

    Filesize

    11KB

    MD5

    00a0194c20ee912257df53bfe258ee4a

    SHA1

    d7b4e319bc5119024690dc8230b9cc919b1b86b2

    SHA256

    dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

    SHA512

    3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667