Resubmissions

19-10-2024 06:07

241019-gvcz8s1dlb 10

19-10-2024 03:26

241019-dzcngswgjk 10

Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-10-2024 03:26

General

  • Target

    5a9bd3d7f1534431a396a033d16ca496_JaffaCakes118.exe

  • Size

    240KB

  • MD5

    5a9bd3d7f1534431a396a033d16ca496

  • SHA1

    0c269c5a641fd479269c2f353841a5bf9910888b

  • SHA256

    bc83ef30422eb7b0c8903d3b4f1d4258e25cf78e9357a30dac773f8d2c17aa28

  • SHA512

    e9c5b2df61e3002a4619073a442cd1041854bafbb99de2ec0e5974ceea36aaacd1aefa43cd9c4b54477af9f3400f1f356d43e506f100f3208ca595ccb5aa3844

  • SSDEEP

    6144:aDYZVxYgPZEz36R2eqHzs5oP+8fgsOznWqZajzCrY4F8TV:nXxO3RHzsmP+agVznWqZa/Cr7W

Malware Config

Signatures

  • Jigsaw Ransomware

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

  • Renames multiple (1981) 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\5a9bd3d7f1534431a396a033d16ca496_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\5a9bd3d7f1534431a396a033d16ca496_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2216
    • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
      "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\5a9bd3d7f1534431a396a033d16ca496_JaffaCakes118.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      PID:2068

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

    240KB

    MD5

    5a9bd3d7f1534431a396a033d16ca496

    SHA1

    0c269c5a641fd479269c2f353841a5bf9910888b

    SHA256

    bc83ef30422eb7b0c8903d3b4f1d4258e25cf78e9357a30dac773f8d2c17aa28

    SHA512

    e9c5b2df61e3002a4619073a442cd1041854bafbb99de2ec0e5974ceea36aaacd1aefa43cd9c4b54477af9f3400f1f356d43e506f100f3208ca595ccb5aa3844

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

    Filesize

    16B

    MD5

    8ebcc5ca5ac09a09376801ecdd6f3792

    SHA1

    81187142b138e0245d5d0bc511f7c46c30df3e14

    SHA256

    619e246fc0ac11320ff9e322a979948d949494b0c18217f4d794e1b398818880

    SHA512

    cec50bfc6ad2f57f16da99459f40f2d424c6d5691685fa1053284f46c8c8c8a975d7bcb1f3521c4f3fbdc310cf4714e29404aa23be6021e2e267c97b090dc650

  • memory/2068-10-0x000007FEF5570000-0x000007FEF5F0D000-memory.dmp

    Filesize

    9.6MB

  • memory/2068-11-0x000007FEF5570000-0x000007FEF5F0D000-memory.dmp

    Filesize

    9.6MB

  • memory/2068-12-0x000007FEF5570000-0x000007FEF5F0D000-memory.dmp

    Filesize

    9.6MB

  • memory/2068-2001-0x000007FEF5570000-0x000007FEF5F0D000-memory.dmp

    Filesize

    9.6MB

  • memory/2068-2004-0x000007FEF5570000-0x000007FEF5F0D000-memory.dmp

    Filesize

    9.6MB

  • memory/2216-0-0x000007FEF582E000-0x000007FEF582F000-memory.dmp

    Filesize

    4KB

  • memory/2216-1-0x000007FEF5570000-0x000007FEF5F0D000-memory.dmp

    Filesize

    9.6MB

  • memory/2216-5-0x000007FEF5570000-0x000007FEF5F0D000-memory.dmp

    Filesize

    9.6MB

  • memory/2216-9-0x000007FEF5570000-0x000007FEF5F0D000-memory.dmp

    Filesize

    9.6MB