Analysis

  • max time kernel
    93s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-01-2025 13:56

General

  • Target

    2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe

  • Size

    22KB

  • MD5

    f486b46ddbd248c5182799957e6f469b

  • SHA1

    2a58267aa820634e8ec5c395f797dc612ae267d4

  • SHA256

    82292c97320930e05de815d6d6ecd6e62f5dca9bdfbf8c4f700cbdc8318daea2

  • SHA512

    9e24a7c94b4c795d56f6ec17f3c21d364bd6e134b6480a6dd751e09fe5e358c32a33027005c1b0a95f98330824176e095a663077a972239658863339d24e61a4

  • SSDEEP

    384:G3MLWHn3kIxfrD5SWPpO+sBIgOk+JFr91Czr4PeC:qn3kIOWPpDOiFr9ikeC

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\read_it.txt

Ransom Note
Your computer was locked All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help.What can I do to get my files back?You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software depends. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these site to be fast and reliable: coinbase.com Message @lulzed on telegram for more information

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 2 IoCs
  • Chaos family
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 3 IoCs
  • 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.

  • Drops desktop.ini file(s) 34 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 51 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4868
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4704
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:1844

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\svchost.exe

    Filesize

    22KB

    MD5

    f486b46ddbd248c5182799957e6f469b

    SHA1

    2a58267aa820634e8ec5c395f797dc612ae267d4

    SHA256

    82292c97320930e05de815d6d6ecd6e62f5dca9bdfbf8c4f700cbdc8318daea2

    SHA512

    9e24a7c94b4c795d56f6ec17f3c21d364bd6e134b6480a6dd751e09fe5e358c32a33027005c1b0a95f98330824176e095a663077a972239658863339d24e61a4

  • C:\Users\Admin\Desktop\read_it.txt

    Filesize

    787B

    MD5

    84ccbf564232c1c923d3c6f9ebe230fd

    SHA1

    e56b20d2a809441beb73d295f0c3c8e5f7164315

    SHA256

    7a70a15dbebc587a3a421f07d12e799a223a23c50eeeaf0e800e996d10ff7dd7

    SHA512

    e54f5eb12057cc14d355e95cc81f0746e373c2f16c12244a47fe08338bf53aa22057d77a9b59b19e97d040e4147b1ea5dc673cd5a1c49f52856f2df150f42353

  • memory/4704-14-0x00007FFA9AA60000-0x00007FFA9B521000-memory.dmp

    Filesize

    10.8MB

  • memory/4704-75-0x00007FFA9AA60000-0x00007FFA9B521000-memory.dmp

    Filesize

    10.8MB

  • memory/4868-0-0x00007FFA9AA63000-0x00007FFA9AA65000-memory.dmp

    Filesize

    8KB

  • memory/4868-1-0x0000000000300000-0x000000000030C000-memory.dmp

    Filesize

    48KB