Resubmissions

13-07-2024 09:54

240713-lxbx6swdmm 10

13-07-2024 09:50

240713-lvbvdsyapd 10

13-07-2024 09:46

240713-lr1dksyajd 10

Analysis

  • max time kernel
    842s
  • max time network
    845s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    13-07-2024 09:50

General

  • Target

    75b45fea6000b6cb5e88b786e164c777c410e11fdcf1ff99b66b43096223d734.exe

  • Size

    2.7MB

  • MD5

    024f23eff975f6989dd2dc4340886961

  • SHA1

    d553862c0cb3ab3ad5cba7654c038c966ebc9a00

  • SHA256

    75b45fea6000b6cb5e88b786e164c777c410e11fdcf1ff99b66b43096223d734

  • SHA512

    4c62ebc36cca4ef4ff9d59e8497047436a7f9f51d78d9dc6d29a657052b997479378d46fc5616150bc62cb7211e623c2012fdd7cca2b4e96f54e64d61975e98a

  • SSDEEP

    24576:s1S4lQMNWi3VesNY8106qPN4K3P0QcejoMZLyiTtiFfkOfE:s1Sy6PX3PpM+P5Id

Malware Config

Extracted

Path

C:\ProgramData\Adobe\Updater6\How to Recovery.bat

Ransom Note
echo off color 0A cls :MENU ECHO. ECHO -----------------Attention----------------- ECHO. ECHO. Your All Files Have been Encrypted! ECHO. ECHO Your Personal files (Documents, Databases, All Drive, PDF, ETC.) We re encrypted. ECHO. But don't worry about your files,You can take back all of them, To decrypt your all files need ECHO. to buy Our Software With your unique private key. Only our software well allow decrypt your files. ECHO. Remember if you try to recovery your files through any third-party software, ECHO. it's can cause premature damage to your files, and we can't help you either. ECHO. ECHO. -----------------Note!----------------- ECHO. ECHO. You have only 72 hours from the moment when an encryption was done to buy our software at $600 for the payment ECHO. ECHO. BTC Address:- 33j4JbAEzZwWGgA2MxBARD7zprJuNDP2hP ECHO. ECHO. And if you Payment complete then Send me proof. ECHO. ECHO. Use the following ID as the title of your email:- QA2Z67DXLBFF724FHN ECHO. ECHO. Use these emails to contact us and receive instructions:- ECHO. ECHO. Main email:- [email protected] ECHO. ECHO. Secondary email ( in case of no response in 48h):- [email protected] ECHO. ECHO. Also, you can send up to 3 test files to see if we can decrypt your files. ECHO. ECHO. After paying, the decryptor software and your private key will be given to you. ECHO. SET /P M=
Wallets

33j4JbAEzZwWGgA2MxBARD7zprJuNDP2hP

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 3 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
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Disables Task Manager via registry modification
  • Drops startup file 2 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 64 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).

  • Interacts with shadow copies 3 TTPs 1 IoCs

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

  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 30 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\75b45fea6000b6cb5e88b786e164c777c410e11fdcf1ff99b66b43096223d734.exe
    "C:\Users\Admin\AppData\Local\Temp\75b45fea6000b6cb5e88b786e164c777c410e11fdcf1ff99b66b43096223d734.exe"
    1⤵
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2724
    • 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)
      • Sets desktop wallpaper using registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2280
      • 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:2600
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2752
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2128
      • 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:332
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2480
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2344
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1724
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:764
      • C:\Windows\system32\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Roaming\How to Recovery.bat" "
        3⤵
          PID:1756
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2576
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2892
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:3036
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:1804

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\ProgramData\Adobe\Updater6\How to Recovery.bat

          Filesize

          1KB

          MD5

          27574c27a400aecbef5de0b2682c286d

          SHA1

          3437c5733e8f86f782699ed5dbae4525ba0b65dd

          SHA256

          6d4e2669d28fe85642debe395f1b601735904193ef43da782dbd6d2212e68b71

          SHA512

          0354e981020472ab91fa9c9f0a1866e368868393f4cbfc0568567247d817efb9e2306c5f696c4687d91def7ab710053e4327e6b2f529be037c56a8f61df20167

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

          Filesize

          2.7MB

          MD5

          024f23eff975f6989dd2dc4340886961

          SHA1

          d553862c0cb3ab3ad5cba7654c038c966ebc9a00

          SHA256

          75b45fea6000b6cb5e88b786e164c777c410e11fdcf1ff99b66b43096223d734

          SHA512

          4c62ebc36cca4ef4ff9d59e8497047436a7f9f51d78d9dc6d29a657052b997479378d46fc5616150bc62cb7211e623c2012fdd7cca2b4e96f54e64d61975e98a

        • C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Notepad.lnk

          Filesize

          1B

          MD5

          d1457b72c3fb323a2671125aef3eab5d

          SHA1

          5bab61eb53176449e25c2c82f172b82cb13ffb9d

          SHA256

          8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

          SHA512

          ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

        • memory/2280-10-0x000007FEF5BD0000-0x000007FEF65BC000-memory.dmp

          Filesize

          9.9MB

        • memory/2280-8-0x0000000000BE0000-0x0000000000E9C000-memory.dmp

          Filesize

          2.7MB

        • memory/2280-11-0x000007FEF5BD0000-0x000007FEF65BC000-memory.dmp

          Filesize

          9.9MB

        • memory/2280-935-0x000007FEF5BD0000-0x000007FEF65BC000-memory.dmp

          Filesize

          9.9MB

        • memory/2724-0-0x000007FEF5BD3000-0x000007FEF5BD4000-memory.dmp

          Filesize

          4KB

        • memory/2724-1-0x0000000000E70000-0x000000000112C000-memory.dmp

          Filesize

          2.7MB

        • memory/2724-2-0x000007FEF5BD0000-0x000007FEF65BC000-memory.dmp

          Filesize

          9.9MB

        • memory/2724-9-0x000007FEF5BD0000-0x000007FEF65BC000-memory.dmp

          Filesize

          9.9MB