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Resubmissions

18/04/2024, 20:02

240418-yr4gfsef9v 10

18/04/2024, 19:59

240418-yqw1zsef5z 10

23/03/2024, 00:07

240323-aearlsag84 10

20/03/2024, 19:20

240320-x17psshe51 10

20/03/2024, 19:18

240320-xz2gdshe3t 10

19/03/2024, 21:09

240319-zzr9tsgd4t 10

Analysis

  • max time kernel
    53s
  • max time network
    54s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    19/03/2024, 21:09

Errors

Reason
Machine shutdown

General

  • Target

    GH0ST.exe

  • Size

    127KB

  • MD5

    90b828929de1319e5b9bf94f4ae990b3

  • SHA1

    8fc41267cfb9f057e78beca15b775d20fb01434b

  • SHA256

    14592b6ee58e6c1abe76e8148f087b1da84f54892b1cca31540dd728298bb185

  • SHA512

    57e50e8c3e424980bfb96d4d1862e998efd50e45df25478fc80537a67a27b8d7aa8cce00400e0126216395205946a38876a2ff494b74d86043c5e5779a4b5921

  • SSDEEP

    3072:oDk4Rq96liXWAPEV9Ue4znvqg2WVrxuF:h4Rq9UCW7WhZx

Malware Config

Extracted

Path

C:\ProgramData\Adobe\Updater6\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
  • Deletes shadow copies 2 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).

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 33 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\GH0ST.exe
    "C:\Users\Admin\AppData\Local\Temp\GH0ST.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1700
    • 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:2552
      • 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:2828
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2464
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2064
      • 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:2876
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2396
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2556
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2156
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:1280
      • 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:2580
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2748
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1652
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1048
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
        PID:2432
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:236
        • C:\Windows\system32\ipconfig.exe
          ipconfig /all
          2⤵
          • Gathers network information
          PID:228
      • C:\Windows\system32\LogonUI.exe
        "LogonUI.exe" /flags:0x0
        1⤵
          PID:816
        • C:\Windows\system32\LogonUI.exe
          "LogonUI.exe" /flags:0x1
          1⤵
            PID:1264

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\ProgramData\Adobe\Updater6\read_it.txt

            Filesize

            582B

            MD5

            ed5cc52876db869de48a4783069c2a5e

            SHA1

            a9d51ceaeff715ace430f9462ab2ee4e7f33e70e

            SHA256

            45726f2f29967ef016f8d556fb6468a577307d67388cc4530295a9ca10fdfa36

            SHA512

            1745aefb9b4db4cdd7c08ee3a7d133db08f35a336fd18b598211519b481ef25ac84a3e8a3da3db06caef9f531288d1cf0ca8d4b2560637945e7953e8b45421f5

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

            Filesize

            127KB

            MD5

            90b828929de1319e5b9bf94f4ae990b3

            SHA1

            8fc41267cfb9f057e78beca15b775d20fb01434b

            SHA256

            14592b6ee58e6c1abe76e8148f087b1da84f54892b1cca31540dd728298bb185

            SHA512

            57e50e8c3e424980bfb96d4d1862e998efd50e45df25478fc80537a67a27b8d7aa8cce00400e0126216395205946a38876a2ff494b74d86043c5e5779a4b5921

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

            Filesize

            1B

            MD5

            d1457b72c3fb323a2671125aef3eab5d

            SHA1

            5bab61eb53176449e25c2c82f172b82cb13ffb9d

            SHA256

            8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

            SHA512

            ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

          • memory/816-901-0x0000000002D90000-0x0000000002D91000-memory.dmp

            Filesize

            4KB

          • memory/1264-903-0x0000000002AA0000-0x0000000002AA1000-memory.dmp

            Filesize

            4KB

          • memory/1700-2-0x000000001AA80000-0x000000001AB00000-memory.dmp

            Filesize

            512KB

          • memory/1700-9-0x000007FEF57C0000-0x000007FEF61AC000-memory.dmp

            Filesize

            9.9MB

          • memory/1700-1-0x000007FEF57C0000-0x000007FEF61AC000-memory.dmp

            Filesize

            9.9MB

          • memory/1700-0-0x0000000000F70000-0x0000000000F96000-memory.dmp

            Filesize

            152KB

          • memory/2552-8-0x0000000000050000-0x0000000000076000-memory.dmp

            Filesize

            152KB

          • memory/2552-10-0x000007FEF57C0000-0x000007FEF61AC000-memory.dmp

            Filesize

            9.9MB

          • memory/2552-11-0x000000001B020000-0x000000001B0A0000-memory.dmp

            Filesize

            512KB

          • memory/2552-899-0x000007FEF57C0000-0x000007FEF61AC000-memory.dmp

            Filesize

            9.9MB

          • memory/2552-902-0x000007FEF57C0000-0x000007FEF61AC000-memory.dmp

            Filesize

            9.9MB