Overview

overview

10

Static

static

10

2024-10-14...ry.exe

windows7-x64

10

2024-10-14...ry.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/10/2024, 08:29

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General

  • Target
    2024-10-14_ee823ebee4208d6df2d5a7b2ed649fbd_destroyer_wannacry.exe
  • Size 26KB
  • Sample241014-kdj9rssdpc
  • SHA256 6ac7524a67a5d7c592be2914fda31804a96c0966dcd53332a87a26018216e3b4
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
chaosdefense_evasionevasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

    ransomwarechaos
  • Chaos Ransomware 2 IoCs
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Disables Task Manager via registry modification
    evasion
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

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

    ransomware
  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: AddClipboardFormatListener 2 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.

    persistence
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-14_ee823ebee4208d6df2d5a7b2ed649fbd_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-14_ee823ebee4208d6df2d5a7b2ed649fbd_destroyer_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5116
    • C:\Users\Admin\AppData\Roaming\telegram.exe
      "C:\Users\Admin\AppData\Roaming\telegram.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops desktop.ini file(s)
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4768
      • 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:4576
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2336
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1544
      • 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:1388
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2992
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:4012
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1032
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:616
      • 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:1508
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4676
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1156
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1372
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1884

    Network

          MITRE ATT&CK Enterprise v15

          Reconnaissance

          Resource Development

          Initial Access

          Execution

          Command and Scripting Interpreter

          1
          T1059

          Windows Management Instrumentation

          1
          T1047

          Persistence

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Privilege Escalation

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Defense Evasion

          Direct Volume Access

          1
          T1006

          Indicator Removal

          3
          T1070

          File Deletion

          3
          T1070.004

          Modify Registry

          1
          T1112

          Credential Access

          Credentials from Password Stores

          1
          T1555

          Credentials from Web Browsers

          1
          T1555.003

          Unsecured Credentials

          1
          T1552

          Credentials In Files

          1
          T1552.001

          Discovery

          Peripheral Device Discovery

          1
          T1120

          Query Registry

          3
          T1012

          System Information Discovery

          3
          T1082

          Lateral Movement

          Collection

          Data from Local System

          1
          T1005

          Command and Control

          Exfiltration

          Impact

          Inhibit System Recovery

          4
          T1490

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          2024-10-14_ee823ebee4208d6df2d5a7b2ed649fbd_destroyer_wannacry.exe.log
          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\2024-10-14_ee823ebee4208d6df2d5a7b2ed649fbd_destroyer_wannacry.exe.log
          • Size 1KB
          • SHA256 ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924
          • MD5 SHA1 SHA512
          Submit Download

          telegram.exe
          • Path C:\Users\Admin\AppData\Roaming\telegram.exe
          • Size 26KB
          • SHA256 6ac7524a67a5d7c592be2914fda31804a96c0966dcd53332a87a26018216e3b4
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          Magnify.lnk
          • Path C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\Magnify.lnk
          • Size 1B
          • SHA256 8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
          • MD5 SHA1 SHA512
          Submit Download

          read_it.txt
          • Path C:\Users\Default\read_it.txt
          • Size 99B
          • SHA256 3afcfc4894491b146cc04a21471937958945e7c8a8cc31621adc8607dec92e97
          • MD5 SHA1 SHA512
          Submit Download

          memory/4768-16-0x00007FF976220000-0x00007FF976CE1000-memory.dmp
          Download

          memory/4768-17-0x00007FF976220000-0x00007FF976CE1000-memory.dmp
          Download

          memory/4768-1311-0x00007FF976220000-0x00007FF976CE1000-memory.dmp
          Download

          memory/5116-0-0x00007FF976223000-0x00007FF976225000-memory.dmp
          Download

          memory/5116-1-0x00000000001C0000-0x00000000001CC000-memory.dmp
          Download

          memory/5116-2-0x00007FF976220000-0x00007FF976CE1000-memory.dmp
          Download

          memory/5116-15-0x00007FF976220000-0x00007FF976CE1000-memory.dmp
          Download