Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    19-03-2024 01:52

General

  • Target

    d4eb2a62ee12659fab50fbf927a6e9ab.exe

  • Size

    23KB

  • MD5

    d4eb2a62ee12659fab50fbf927a6e9ab

  • SHA1

    529f9e09d02a107d6b50387c976b1209229545aa

  • SHA256

    db4b65445f8a7d1f8827e510affccf6a1fd557daf81b49b50b93beea759153f8

  • SHA512

    2ddd79445b40cb8f8ec5874b0ce2842bc0d6a5045b3d5d35efa7130b3fc88c6c8482499ee2ab6d24919556b69790758469934fae943f0058d1e13a3a11511a9e

  • SSDEEP

    384:oOgHs6cYgBznHTQliJYcxr91CnWzwnbJ/yS:oOgHs7hznzQl2Y4r9FwnbwS

Score
10/10

Malware Config

Extracted

Path

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

Family

chaos

Ransom Note
----> Chaos is multi language ransomware. Translate your note to any language <---- 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 is $1,500. 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 sites to be fast and reliable: Coinmama - hxxps://www.coinmama.com Bitpanda - hxxps://www.bitpanda.com Payment informationAmount: 0.1473766 BTC Bitcoin Address: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 3 IoCs
  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops desktop.ini file(s) 14 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d4eb2a62ee12659fab50fbf927a6e9ab.exe
    "C:\Users\Admin\AppData\Local\Temp\d4eb2a62ee12659fab50fbf927a6e9ab.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2340
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2832
      • 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:1516

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    23KB

    MD5

    d4eb2a62ee12659fab50fbf927a6e9ab

    SHA1

    529f9e09d02a107d6b50387c976b1209229545aa

    SHA256

    db4b65445f8a7d1f8827e510affccf6a1fd557daf81b49b50b93beea759153f8

    SHA512

    2ddd79445b40cb8f8ec5874b0ce2842bc0d6a5045b3d5d35efa7130b3fc88c6c8482499ee2ab6d24919556b69790758469934fae943f0058d1e13a3a11511a9e

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

    Filesize

    964B

    MD5

    4217b8b83ce3c3f70029a056546f8fd0

    SHA1

    487cdb5733d073a0427418888e8f7070fe782a03

    SHA256

    7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

    SHA512

    2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

  • memory/2340-0-0x0000000000E00000-0x0000000000E0C000-memory.dmp

    Filesize

    48KB

  • memory/2340-1-0x000007FEF5BA0000-0x000007FEF658C000-memory.dmp

    Filesize

    9.9MB

  • memory/2340-8-0x000007FEF5BA0000-0x000007FEF658C000-memory.dmp

    Filesize

    9.9MB

  • memory/2832-7-0x00000000008E0000-0x00000000008EC000-memory.dmp

    Filesize

    48KB

  • memory/2832-9-0x000007FEF5BA0000-0x000007FEF658C000-memory.dmp

    Filesize

    9.9MB

  • memory/2832-11-0x000000001ADF0000-0x000000001AE70000-memory.dmp

    Filesize

    512KB

  • memory/2832-239-0x000007FEF5BA0000-0x000007FEF658C000-memory.dmp

    Filesize

    9.9MB

  • memory/2832-240-0x000000001ADF0000-0x000000001AE70000-memory.dmp

    Filesize

    512KB