Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-11-2024 22:24

General

  • Target

    202523606be3b79ee5b59b342404b0c4ec85df4182ceffd97d02fd02effdce89.exe

  • Size

    27KB

  • MD5

    4dd53a1b9a5bc8e1c327abfa7774e287

  • SHA1

    220dffcf2a4064f0b01900def851823fa6e9e539

  • SHA256

    202523606be3b79ee5b59b342404b0c4ec85df4182ceffd97d02fd02effdce89

  • SHA512

    cee4524a1462c8272c6e3d404ac603720b02558ab2bd1f23ecb7c53afcafeef48eed10f96d05f1a2450793e8376ce368c770ca43b63931461dc7f0f34ef22588

  • SSDEEP

    384:/FftWZPzzxAm1vp5ZRoDCFKW6pAnAQ5nelEOy5o91lDM5sp/82vG:/FW7zxAmpfyCz6pVQ5fho9kGR82+

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Google\Chrome\User Data\read_it.txt

Ransom Note
Don't worry, you can return all your files! All your files like documents, photos, databases and other important are encrypted What guarantees do we give to you? You can send 3 of your encrypted files and we decrypt it for free. You must follow these steps To decrypt your files : 1) Write on our e-mail :[email protected] ( In case of no answer in 24 hours check your spam folder or write us to this e-mail: [email protected]) 2) Obtain Bitcoin (You have to pay for decryption in Bitcoins. After payment we will send you the tool that will decrypt all your files.)

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 3 IoCs
  • Chaos family
  • Drops startup file 2 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 64 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 2 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\202523606be3b79ee5b59b342404b0c4ec85df4182ceffd97d02fd02effdce89.exe
    "C:\Users\Admin\AppData\Local\Temp\202523606be3b79ee5b59b342404b0c4ec85df4182ceffd97d02fd02effdce89.exe"
    1⤵
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2328
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops desktop.ini file(s)
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2128
      • 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:964

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\read_it.txt

    Filesize

    582B

    MD5

    ed5cc52876db869de48a4783069c2a5e

    SHA1

    a9d51ceaeff715ace430f9462ab2ee4e7f33e70e

    SHA256

    45726f2f29967ef016f8d556fb6468a577307d67388cc4530295a9ca10fdfa36

    SHA512

    1745aefb9b4db4cdd7c08ee3a7d133db08f35a336fd18b598211519b481ef25ac84a3e8a3da3db06caef9f531288d1cf0ca8d4b2560637945e7953e8b45421f5

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

    Filesize

    27KB

    MD5

    4dd53a1b9a5bc8e1c327abfa7774e287

    SHA1

    220dffcf2a4064f0b01900def851823fa6e9e539

    SHA256

    202523606be3b79ee5b59b342404b0c4ec85df4182ceffd97d02fd02effdce89

    SHA512

    cee4524a1462c8272c6e3d404ac603720b02558ab2bd1f23ecb7c53afcafeef48eed10f96d05f1a2450793e8376ce368c770ca43b63931461dc7f0f34ef22588

  • C:\Users\Admin\Desktop\InvokeCheckpoint.xlsx

    Filesize

    1B

    MD5

    d1457b72c3fb323a2671125aef3eab5d

    SHA1

    5bab61eb53176449e25c2c82f172b82cb13ffb9d

    SHA256

    8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

    SHA512

    ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

  • memory/2128-8-0x0000000000E90000-0x0000000000E9E000-memory.dmp

    Filesize

    56KB

  • memory/2128-9-0x000007FEF5BD0000-0x000007FEF65BC000-memory.dmp

    Filesize

    9.9MB

  • memory/2128-21-0x000007FEF5BD0000-0x000007FEF65BC000-memory.dmp

    Filesize

    9.9MB

  • memory/2128-955-0x000007FEF5BD0000-0x000007FEF65BC000-memory.dmp

    Filesize

    9.9MB

  • memory/2328-0-0x000007FEF5BD3000-0x000007FEF5BD4000-memory.dmp

    Filesize

    4KB

  • memory/2328-1-0x0000000000D80000-0x0000000000D8E000-memory.dmp

    Filesize

    56KB

  • memory/2328-3-0x000007FEF5BD0000-0x000007FEF65BC000-memory.dmp

    Filesize

    9.9MB

  • memory/2328-954-0x000007FEF5BD0000-0x000007FEF65BC000-memory.dmp

    Filesize

    9.9MB