Overview

overview

10

Static

static

10

2025-01-31...ry.exe

windows7-x64

10

2025-01-31...ry.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    94s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-01-2025 06:25

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General

  • Target

    2025-01-31_3141e9897f750c7b5d0b51f644d63010_destroyer_wannacry.exe

  • Size

    35KB

  • MD5

    3141e9897f750c7b5d0b51f644d63010

  • SHA1

    812e7fb43952d07ea7b29f0f8e3406d408b56e77

  • SHA256

    e86124d645258b8c4ae50bb4b8c93f3cfd8130b161ed7526bded020065e986f4

  • SHA512

    67297eefd2d3a901abc2421cc762e08866ea4519bf191ddf765ee6949421feb8b2f37f3b414d7cbb5669cf26782ff7eb1541c6dcbf2815b196de8e3b1143c3af

  • SSDEEP

    768:wqo2lMDFxp0DFN0/r9cZ3fcx6SOBLiIYpqLQndtg/xeo:Xo2SahN0/r9cRcISO7Lgda/Ao

Score
10/10
chaosdefense_evasionevasionexecutionimpactransomwarespywarestealer

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
  • Renames multiple (205) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • 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 3 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
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 49 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\2025-01-31_3141e9897f750c7b5d0b51f644d63010_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-31_3141e9897f750c7b5d0b51f644d63010_destroyer_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4892
    • C:\Users\Admin\AppData\Roaming\explorer.exe
      "C:\Users\Admin\AppData\Roaming\explorer.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:3560
      • 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:2916
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:4372
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3464
      • 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:2228
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3576
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1724
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3396
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:2928
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\open_me.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:2676
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2636
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:5048
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1272
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3012

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      35KB

      MD5

      3141e9897f750c7b5d0b51f644d63010

      SHA1

      812e7fb43952d07ea7b29f0f8e3406d408b56e77

      SHA256

      e86124d645258b8c4ae50bb4b8c93f3cfd8130b161ed7526bded020065e986f4

      SHA512

      67297eefd2d3a901abc2421cc762e08866ea4519bf191ddf765ee6949421feb8b2f37f3b414d7cbb5669cf26782ff7eb1541c6dcbf2815b196de8e3b1143c3af

      Download Submit

    • C:\Users\Admin\Documents\open_me.txt
      Filesize

      395B

      MD5

      73d41c5b2248045069472de6d89a1482

      SHA1

      7e5293e1d5e1e1958506585c3970fdd85b85b346

      SHA256

      05fda42614d7ca61b62d9b91434c2498f9ea73cdf28c62ad35615b8922855384

      SHA512

      030aacdde603acd7f84c02d0a6b00856b933b3cdf8987d275efd97466b3a5d0a8fd8001900d60fda52b9b2576ce1500fa0eed11aa25e11cb34d7ab030bdf52d6

      Download Submit

    • memory/3560-14-0x00007FFB52290000-0x00007FFB52D51000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/3560-22-0x00007FFB52290000-0x00007FFB52D51000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/3560-478-0x00007FFB52290000-0x00007FFB52D51000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/4892-0-0x00007FFB52293000-0x00007FFB52295000-memory.dmp

      Filesize

      8KB

      Download

    • memory/4892-1-0x0000000000ED0000-0x0000000000EE0000-memory.dmp

      Filesize

      64KB

      Download