Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    31-12-2024 02:24

General

  • Target

    2024-12-31_5cdea7f9eb5668ea19690e9b06d6ee95_wannacry.exe

  • Size

    241KB

  • MD5

    5cdea7f9eb5668ea19690e9b06d6ee95

  • SHA1

    b8f82268f1ffa5c0cc09ad505836335dd96e41aa

  • SHA256

    cab9a9d7cc3aedfafa942f1c9fd8e79807927a8ba8d3536cc3bc6474c9b4bee1

  • SHA512

    523fd8da41de0cbf6e3aba83bfb9eb0d37ed0283aee332508142bc6886d0cddae68004b741485040fcb6ebd57d53d0f5cacb6b6117a2dfd9fe9d10fe01fee3cd

  • SSDEEP

    3072:eXq9GtSp2cyEQN0Y+w0RGp3UOHkDK7Pk1AgQsld6nGS0/MVF9nnJJEDOPMpBqxt5:eXq9eV5+w0RGEOAoUod0/OJJrtlEs

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\read_it.txt

Ransom Note
You just got Jonklered by a retard All your files like documents, photos, databases and other important are encrypted nigger What guarantees do we give to you? 'trust me bro' 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
  • 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 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
  • 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.

  • Opens file in notepad (likely ransom note) 1 IoCs
  • 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\2024-12-31_5cdea7f9eb5668ea19690e9b06d6ee95_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-31_5cdea7f9eb5668ea19690e9b06d6ee95_wannacry.exe"
    1⤵
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2504
    • 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:3012
      • 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:2944
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2728
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2496
      • 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:1492
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2780
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2840
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1304
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:1744
      • 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:1760
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2928
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1320
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:2884
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
        PID:1316

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\read_it.txt

        Filesize

        539B

        MD5

        f721ae6805711d41783896c01220b519

        SHA1

        28e23c60755b9aaa8f97f30e196f1088cfe9bae4

        SHA256

        4dea509b5086d5097cf965b4a8cb4ee6e2d5395a30643efd9226bed4b2796620

        SHA512

        a019910bd9705a509ebaa78b5e4cf8e2467e380c83d7700069b1eb404f91e128bffa3f53dccfd8e1cf2a60b3749068901dd73d2c69159a7600d4615b4a3373ea

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

        Filesize

        241KB

        MD5

        5cdea7f9eb5668ea19690e9b06d6ee95

        SHA1

        b8f82268f1ffa5c0cc09ad505836335dd96e41aa

        SHA256

        cab9a9d7cc3aedfafa942f1c9fd8e79807927a8ba8d3536cc3bc6474c9b4bee1

        SHA512

        523fd8da41de0cbf6e3aba83bfb9eb0d37ed0283aee332508142bc6886d0cddae68004b741485040fcb6ebd57d53d0f5cacb6b6117a2dfd9fe9d10fe01fee3cd

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

        Filesize

        1B

        MD5

        d1457b72c3fb323a2671125aef3eab5d

        SHA1

        5bab61eb53176449e25c2c82f172b82cb13ffb9d

        SHA256

        8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

        SHA512

        ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

      • memory/2504-0-0x000007FEF5063000-0x000007FEF5064000-memory.dmp

        Filesize

        4KB

      • memory/2504-1-0x0000000000EC0000-0x0000000000F02000-memory.dmp

        Filesize

        264KB

      • memory/2504-2-0x000007FEF5060000-0x000007FEF5A4C000-memory.dmp

        Filesize

        9.9MB

      • memory/2504-10-0x000007FEF5060000-0x000007FEF5A4C000-memory.dmp

        Filesize

        9.9MB

      • memory/3012-8-0x0000000001240000-0x0000000001282000-memory.dmp

        Filesize

        264KB

      • memory/3012-9-0x000007FEF5060000-0x000007FEF5A4C000-memory.dmp

        Filesize

        9.9MB

      • memory/3012-11-0x000007FEF5060000-0x000007FEF5A4C000-memory.dmp

        Filesize

        9.9MB

      • memory/3012-1010-0x000007FEF5060000-0x000007FEF5A4C000-memory.dmp

        Filesize

        9.9MB