Resubmissions

13-07-2024 09:54

240713-lxcvgawdmn 10

13-07-2024 09:52

240713-lv46yawdkj 10

13-07-2024 09:46

240713-lrz3tayajc 10

Analysis

  • max time kernel
    1680s
  • max time network
    1155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-07-2024 09:54

General

  • Target

    ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8.exe

  • Size

    325KB

  • MD5

    9a4827a78e363d84ea0e334e842ab039

  • SHA1

    a0d222d2fd9cf90a47a134ef571232ee482a45f7

  • SHA256

    ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8

  • SHA512

    0f20fbf72e254155f0b2403488f5d8262c98138335380f3267afed6b79b91f2c9198924853dccb5b60bc9075876a700e12fc7b8509075bdb3b13776d3514ad0c

  • SSDEEP

    6144:9dCr9fPhxhdsVFGEeRJk8nrKfQhCd/hAxno0yu:TEhxbsVFGEeRJk8mQE7Axqu

Malware Config

Extracted

Path

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

Ransom Note
TuRKey_RanSOmWarE 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 $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: 0,022 BTC Bitcoin Address: bc1qxwnqayk77nha5509swmclfzgkas6gc9t8xjj64

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 2 IoCs
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Renames multiple (217) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • 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 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 34 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Interacts with shadow copies 3 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 43 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8.exe
    "C:\Users\Admin\AppData\Local\Temp\ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3224
    • C:\Users\Admin\AppData\Roaming\System.ini.exe
      "C:\Users\Admin\AppData\Roaming\System.ini.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Sets desktop wallpaper using registry
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5000
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3256
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:3244
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3444
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4496
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1236
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2720
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2340
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:1856
      • 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:1888
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2508
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3688
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1624
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1540

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\System.ini.exe

      Filesize

      325KB

      MD5

      9a4827a78e363d84ea0e334e842ab039

      SHA1

      a0d222d2fd9cf90a47a134ef571232ee482a45f7

      SHA256

      ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8

      SHA512

      0f20fbf72e254155f0b2403488f5d8262c98138335380f3267afed6b79b91f2c9198924853dccb5b60bc9075876a700e12fc7b8509075bdb3b13776d3514ad0c

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

      Filesize

      953B

      MD5

      bd37069aebdf327fdb4db6f86e36af60

      SHA1

      cde14a2afc7e8c4ffad0cf5737536660cb118c32

      SHA256

      00de24d28abf0b98a3fa7486a2aa58e8ff0e32d2c5bf5b95f3a12bc80b4e478c

      SHA512

      9d0f53da5611124d88a19f210c0daf6f789128fc07994aa4c96346b3ca57ccaa85e3a83e10731d956431c02e63aca69f835464e3aa78846931805d2c5c4afeeb

    • memory/3224-0-0x0000000000E20000-0x0000000000E78000-memory.dmp

      Filesize

      352KB

    • memory/3224-1-0x00007FFF723E3000-0x00007FFF723E5000-memory.dmp

      Filesize

      8KB

    • memory/5000-14-0x00007FFF723E0000-0x00007FFF72EA1000-memory.dmp

      Filesize

      10.8MB

    • memory/5000-24-0x00007FFF723E0000-0x00007FFF72EA1000-memory.dmp

      Filesize

      10.8MB

    • memory/5000-505-0x00007FFF723E0000-0x00007FFF72EA1000-memory.dmp

      Filesize

      10.8MB