Overview

overview

10

Static

static

10

2024-12-15...ry.exe

windows7-x64

10

2024-12-15...ry.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    95s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-12-2024 03:23

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General

  • Target

    2024-12-15_603e48a98dad157d9f8661097ac9bd4e_wannacry.exe

  • Size

    362KB

  • MD5

    603e48a98dad157d9f8661097ac9bd4e

  • SHA1

    5680b89b1ff990bd32067bf2d84bb792d1614fa6

  • SHA256

    b6b9fa58bf57ceab4809ad2fc5983686567df05b92413aa8183a979b75f30016

  • SHA512

    43db5e997f260e66865195e08379dc9a6a83439cbff497f71f03255dde8ff2620b7852eeb592c1cb82d9a09934af9c0e802de879ae4476fe73a32ef324bb5354

  • SSDEEP

    6144:X4Zq9lVYxyj9aqEaEPs8PqAftRe2CT1R4qV3hAB52:X4gVYxuTEa8PqAfTPEqqV3yB52

Score
10/10
chaosdefense_evasionevasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

    ransomwarechaos
  • Chaos Ransomware 2 IoCs
  • Chaos family
    chaos
  • 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
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • 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 48 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\2024-12-15_603e48a98dad157d9f8661097ac9bd4e_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-15_603e48a98dad157d9f8661097ac9bd4e_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3084
    • C:\Users\Admin\AppData\Roaming\tools.exe
      "C:\Users\Admin\AppData\Roaming\tools.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • 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:316
      • 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:876
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:1076
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2140
      • 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:2352
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2104
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:924
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2416
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:3996
      • 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:2144
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3464
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1960
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:3720
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1228

    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

    2
    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

    Defacement

    1
    T1491

    Inhibit System Recovery

    4
    T1490

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\2024-12-15_603e48a98dad157d9f8661097ac9bd4e_wannacry.exe.log
      Filesize

      1KB

      MD5

      baf55b95da4a601229647f25dad12878

      SHA1

      abc16954ebfd213733c4493fc1910164d825cac8

      SHA256

      ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

      SHA512

      24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

      Download Submit

    • C:\Users\Admin\AppData\Roaming\tools.exe
      Filesize

      362KB

      MD5

      603e48a98dad157d9f8661097ac9bd4e

      SHA1

      5680b89b1ff990bd32067bf2d84bb792d1614fa6

      SHA256

      b6b9fa58bf57ceab4809ad2fc5983686567df05b92413aa8183a979b75f30016

      SHA512

      43db5e997f260e66865195e08379dc9a6a83439cbff497f71f03255dde8ff2620b7852eeb592c1cb82d9a09934af9c0e802de879ae4476fe73a32ef324bb5354

      Download Submit

    • C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\Magnify.lnk
      Filesize

      1B

      MD5

      d1457b72c3fb323a2671125aef3eab5d

      SHA1

      5bab61eb53176449e25c2c82f172b82cb13ffb9d

      SHA256

      8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

      SHA512

      ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

      Download Submit

    • C:\Users\Default\read_it.txt
      Filesize

      309B

      MD5

      cbac682dec9d9089cc260e3d70ec3c32

      SHA1

      6af5fa212bbf3151803a5760960da980159fa897

      SHA256

      45dac0116844b1f78a941d315ca62cfe4522bf769f7ebb21597c0c007261f17b

      SHA512

      daf5b712a25b4a77a4bf79a4813f5c0587c2ceee59cd91083713c72792b9ad9124840735d9bd1579102eef0b8b4d1e4a89c0f6850b801edf3e83e74cc5aaf806

      Download Submit

    • memory/316-15-0x00007FFC7EB30000-0x00007FFC7F5F1000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/316-17-0x00007FFC7EB30000-0x00007FFC7F5F1000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/316-1155-0x00007FFC7EB30000-0x00007FFC7F5F1000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/3084-1-0x0000000000AC0000-0x0000000000B20000-memory.dmp

      Filesize

      384KB

      Download

    • memory/3084-0-0x00007FFC7EB33000-0x00007FFC7EB35000-memory.dmp

      Filesize

      8KB

      Download

    • memory/3084-2-0x00007FFC7EB30000-0x00007FFC7F5F1000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/3084-16-0x00007FFC7EB30000-0x00007FFC7F5F1000-memory.dmp

      Filesize

      10.8MB

      Download