Resubmissions

27-11-2024 13:27

241127-qqdkmsvnhz 10

27-11-2024 09:28

241127-lfrx3atrgr 10

Analysis

  • max time kernel
    141s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2024 09:28

General

  • Target

    2f41c73046f3b0f5edd79ae089b6b64ec3a0812ea02fe7325b8e5b171a621c95.exe

  • Size

    1.5MB

  • MD5

    b8f887a092b6bdcb1bd882e35164d1d7

  • SHA1

    08152f67bf925a7478312d45a67f33116a6097b3

  • SHA256

    2f41c73046f3b0f5edd79ae089b6b64ec3a0812ea02fe7325b8e5b171a621c95

  • SHA512

    057b60f71a84c51d3112e553164d4a476f9488bd1369cec4405975b8cece83fe29d58342bd02ad17542ca1e38254f05dadca027ecbeb281d3b94ff198517dff7

  • SSDEEP

    24576:7zwwr/TK4y3+HaxwUsgdYNLhzEnmfp499VYn6nTtEpR59qUN0i6OtH:78wra+ksgdYNLhYmfpaVYn6nTMR59VSi

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 (1973) 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\2f41c73046f3b0f5edd79ae089b6b64ec3a0812ea02fe7325b8e5b171a621c95.exe
    "C:\Users\Admin\AppData\Local\Temp\2f41c73046f3b0f5edd79ae089b6b64ec3a0812ea02fe7325b8e5b171a621c95.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2856
    • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
      "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\2f41c73046f3b0f5edd79ae089b6b64ec3a0812ea02fe7325b8e5b171a621c95.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      PID:2824

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.dc

    Filesize

    160B

    MD5

    000e8c41d4a15fb34d0be0dbb56e3778

    SHA1

    00c4eae64ee6239d7c65d819c6ce1ac329224f8c

    SHA256

    8bdfa6a5b7de345cf0d4fe0e9c17d8b0e9db26d58b05b1b2ebbb3a05a068ff28

    SHA512

    775d832eb8ab73e4a93789917dca69edb6c91fbb426e02acf7c6e213ffb4575776187209d1c471fbf57c4621ea3c23d9850f6dfc2770d62c17de9d66710800af

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

    Filesize

    1.5MB

    MD5

    b8f887a092b6bdcb1bd882e35164d1d7

    SHA1

    08152f67bf925a7478312d45a67f33116a6097b3

    SHA256

    2f41c73046f3b0f5edd79ae089b6b64ec3a0812ea02fe7325b8e5b171a621c95

    SHA512

    057b60f71a84c51d3112e553164d4a476f9488bd1369cec4405975b8cece83fe29d58342bd02ad17542ca1e38254f05dadca027ecbeb281d3b94ff198517dff7

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

    Filesize

    16B

    MD5

    cfdae8214d34112dbee6587664059558

    SHA1

    f649f45d08c46572a9a50476478ddaef7e964353

    SHA256

    33088cb514406f31e3d96a92c03294121ee9f24e176f7062625c2b36bee7a325

    SHA512

    c260f2c223ecbf233051ac1d6a1548ad188a2777085e9d43b02da41b291ff258e4c506f99636150847aa24918c7bbb703652fef2fe55b3f50f85b5bd8dd5f6e3

  • memory/2824-13-0x000007FEF6260000-0x000007FEF6BFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2824-10-0x000007FEF6260000-0x000007FEF6BFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2824-12-0x000007FEF6260000-0x000007FEF6BFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2824-14-0x000007FEF6260000-0x000007FEF6BFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2824-1995-0x000007FEF6260000-0x000007FEF6BFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2824-1996-0x000007FEF6260000-0x000007FEF6BFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2824-1999-0x000007FEF6260000-0x000007FEF6BFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2824-2000-0x000007FEF6260000-0x000007FEF6BFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2856-3-0x000000001B260000-0x000000001B4CE000-memory.dmp

    Filesize

    2.4MB

  • memory/2856-11-0x000007FEF6260000-0x000007FEF6BFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2856-0-0x000007FEF651E000-0x000007FEF651F000-memory.dmp

    Filesize

    4KB

  • memory/2856-2-0x000007FEF6260000-0x000007FEF6BFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2856-1-0x000007FEF6260000-0x000007FEF6BFD000-memory.dmp

    Filesize

    9.6MB