Analysis

  • max time kernel
    119s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    27-10-2024 21:51

General

  • Target

    761c1fd0fd125f26482ed641b374a24f_JaffaCakes118.exe

  • Size

    307KB

  • MD5

    761c1fd0fd125f26482ed641b374a24f

  • SHA1

    d6043c7269cabd9b540a4ba7972259d32d5a18a3

  • SHA256

    31a9ca0a1f20618bf113dd2b03a0cb28fc003a800e49c74b97e9baca5acc26e2

  • SHA512

    b707ed5f80b0d1bb1978eec88d931776e53d8b693951ff1f4fffd47e077b127e8b126f8d6b11d719117ab082455635b751a5664cf7941a0c245ee0a66aaae830

  • SSDEEP

    6144:8EdrcSuQNS+Q/yvt6+36R2eqHzs5oP+8fgsOznWqZajzCrY4Ff/:MjX/yn3RHzsmP+agVznWqZa/Cr79

Malware Config

Signatures

  • Jigsaw Ransomware

    Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.

  • Jigsaw family
  • Renames multiple (2000) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\761c1fd0fd125f26482ed641b374a24f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\761c1fd0fd125f26482ed641b374a24f_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2372
    • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
      "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\761c1fd0fd125f26482ed641b374a24f_JaffaCakes118.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      PID:2764

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\cursors\invalid32x32.gif.fun

    Filesize

    160B

    MD5

    580ee0344b7da2786da6a433a1e84893

    SHA1

    60f8c4dd5457e9834f5402cb326b1a2d3ca0ba7e

    SHA256

    98b6c2ddfefc628d03ceaef9d69688674a6bc32eb707f9ed86bc8c75675c4513

    SHA512

    356d2cdea3321e894b5b46ad1ea24c0e3c8be8e3c454b5bd300b7340cbb454e71fc89ca09ea0785b373b483e67c2f6f6bb408e489b0de4ff82d5ed69a75613ba

  • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe

    Filesize

    307KB

    MD5

    761c1fd0fd125f26482ed641b374a24f

    SHA1

    d6043c7269cabd9b540a4ba7972259d32d5a18a3

    SHA256

    31a9ca0a1f20618bf113dd2b03a0cb28fc003a800e49c74b97e9baca5acc26e2

    SHA512

    b707ed5f80b0d1bb1978eec88d931776e53d8b693951ff1f4fffd47e077b127e8b126f8d6b11d719117ab082455635b751a5664cf7941a0c245ee0a66aaae830

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\DNTException\container.dat.fun

    Filesize

    16B

    MD5

    8ebcc5ca5ac09a09376801ecdd6f3792

    SHA1

    81187142b138e0245d5d0bc511f7c46c30df3e14

    SHA256

    619e246fc0ac11320ff9e322a979948d949494b0c18217f4d794e1b398818880

    SHA512

    cec50bfc6ad2f57f16da99459f40f2d424c6d5691685fa1053284f46c8c8c8a975d7bcb1f3521c4f3fbdc310cf4714e29404aa23be6021e2e267c97b090dc650

  • memory/2372-0-0x000007FEF6A8E000-0x000007FEF6A8F000-memory.dmp

    Filesize

    4KB

  • memory/2372-7-0x000007FEF67D0000-0x000007FEF716D000-memory.dmp

    Filesize

    9.6MB

  • memory/2764-9-0x000007FEF67D0000-0x000007FEF716D000-memory.dmp

    Filesize

    9.6MB

  • memory/2764-8-0x000007FEF67D0000-0x000007FEF716D000-memory.dmp

    Filesize

    9.6MB

  • memory/2764-10-0x000007FEF67D0000-0x000007FEF716D000-memory.dmp

    Filesize

    9.6MB

  • memory/2764-11-0x000007FEF67D0000-0x000007FEF716D000-memory.dmp

    Filesize

    9.6MB

  • memory/2764-2019-0x000007FEF67D0000-0x000007FEF716D000-memory.dmp

    Filesize

    9.6MB

  • memory/2764-2022-0x000007FEF67D0000-0x000007FEF716D000-memory.dmp

    Filesize

    9.6MB