Overview

overview

10

Static

static

10

2024-08-30...ry.exe

windows7-x64

10

2024-08-30...ry.exe

windows10-2004-x64

10

Resubmissions

30-08-2024 14:26

240830-rr253ayfjc 10

30-08-2024 09:28

240830-lfmncaxamh 10

Analysis

  • max time kernel
    200s
  • max time network
    277s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-08-2024 14:26

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General

  • Target

    2024-08-30_81605de48f66887272b879486dfc07a8_destroyer_wannacry.exe

  • Size

    68KB

  • MD5

    81605de48f66887272b879486dfc07a8

  • SHA1

    cc58705c7ec749a5a9177125b216c9ee0ee0bb93

  • SHA256

    fa0a4f9d71cde33626ac77ca1d5f5ff98af968446787dbe097cc36ea6f5ae87a

  • SHA512

    d288d845acf7d9b7c41bf6cf2894d4671577fbbbf98856d357bbd7c09744da9979ae0f643e5c10ca76029721749bceecbfeb9b7a54b33a596af0ab66791fbf6a

  • SSDEEP

    1536:io2zsW1l0vr90fEcB04Cwo2zsW1l0vr90fEcB04C:ioETz0vr90fEcdCwoETz0vr90fEcdC

Score
10/10
chaosdefense_evasionevasionexecutionimpactransomwarespywarestealer

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
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 3 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.

    spywarestealer
  • Drops desktop.ini file(s) 34 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 51 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\2024-08-30_81605de48f66887272b879486dfc07a8_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-30_81605de48f66887272b879486dfc07a8_destroyer_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3520
    • C:\Users\Admin\AppData\Roaming\Runtime Broker.exe
      "C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • 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:2984
      • 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:3952
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2252
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2024
      • 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:4700
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3840
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3644
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4472
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:4928
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\LEIA-ME.txt
        3⤵
          PID:716
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4364
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3228
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:4060
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:3708

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Roaming\Runtime Broker.exe
        Filesize

        68KB

        MD5

        81605de48f66887272b879486dfc07a8

        SHA1

        cc58705c7ec749a5a9177125b216c9ee0ee0bb93

        SHA256

        fa0a4f9d71cde33626ac77ca1d5f5ff98af968446787dbe097cc36ea6f5ae87a

        SHA512

        d288d845acf7d9b7c41bf6cf2894d4671577fbbbf98856d357bbd7c09744da9979ae0f643e5c10ca76029721749bceecbfeb9b7a54b33a596af0ab66791fbf6a

        Download Submit

      • C:\Users\Admin\Documents\LEIA-ME.txt
        Filesize

        746B

        MD5

        0aa302be2ad74a8c162f366263ef23be

        SHA1

        40477cd6815f51dc69fa8069f30a6d7b4924fd9b

        SHA256

        93d5b98fbb9a4e245ee93b2cb7699e38d699addc64b050cf93040887efd02d59

        SHA512

        8d0764b9005653fabc98738ad8ce32e3c44bc9f8416cec865b96bc7797b499fd4f6ed1c0e24bc7132f318bf22cd0bbf164edcb383cb944d339bf3f8f55a18171

        Download Submit

      • memory/2984-15-0x00007FF92DA00000-0x00007FF92E4C1000-memory.dmp

        Filesize

        10.8MB

        Download

      • memory/2984-20-0x00007FF92DA00000-0x00007FF92E4C1000-memory.dmp

        Filesize

        10.8MB

        Download

      • memory/2984-461-0x00007FF92DA00000-0x00007FF92E4C1000-memory.dmp

        Filesize

        10.8MB

        Download

      • memory/3520-0-0x00007FF92DA03000-0x00007FF92DA05000-memory.dmp

        Filesize

        8KB

        Download

      • memory/3520-1-0x0000000000AC0000-0x0000000000ACE000-memory.dmp

        Filesize

        56KB

        Download

      • memory/3520-2-0x00007FF92DA03000-0x00007FF92DA05000-memory.dmp

        Filesize

        8KB

        Download