Overview

overview

10

Static

static

10

2024-06-16...ry.exe

windows7-x64

10

2024-06-16...ry.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    94s
  • max time network
    101s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-06-2024 04:24

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General

  • Target

    2024-06-16_1edae706b6ba5c74c4e614551bb50add_wannacry.exe

  • Size

    211KB

  • MD5

    1edae706b6ba5c74c4e614551bb50add

  • SHA1

    3aa456a3e8b74fa7237158ed90c79e06e87d3fb0

  • SHA256

    d8d7964db066a0d46060fbff334cf56292ba4dbba875d86e59a24e75841c85eb

  • SHA512

    c39babf21f2046d0f49b176718cbe82352c7afcfcd7128b380fbad1958f0718cde990cf7697de025b9ec1b656f6ae6ad062be3ff4c0901a17aecb4c098137b40

  • SSDEEP

    3072:nc91C49Jg1zgiH4gPmxon+ncNz8RQmxxrRyXk4:nc9s4M7YBG8

Score
10/10
chaosdefense_evasionevasionexecutionimpactransomwarespywarestealer

Malware Config

Extracted

Path

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

Family

chaos

Ransom Note
----> Chaos is multi language ransomware. Translate your note to any language <---- All of your files have been encrypted your machine has just been infected by Lockbit 3.0 All your data has been encrypted and cannot be decrypted without our help. If you wish to recover your data, you must pay 180 euros/dollars in btc. You have 7 days. If you refuse to pay, or pay only part of the fee, your files will be permanently deleted. Modifying or decrypting your data yourself may lead to complications and our decryption tool will be ineffective. We are lockbit, a group that generally attacks companies. We have been active since 2017. Our movement is not political. What's the guarantee that we'll restore your files? Lockbit just wants your money, this thing, this piece piece of paper so meaningless. Deleting your data won't do us any good. The choice is yours. Once you've paid the ransom, let us know by sending an e-mail to [email protected], specifying the date and time of payment and this unique code which will enable us to identify which machine to restore: 835534. Payment informationAmount:Dependsoncurrency BTC Bitcoin Address: bc1qvnsaalef5t0ymae0vzk69hxng8xfjudn0pu6h9

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
  • Detects command variations typically used by ransomware 2 IoCs
  • 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 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) 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 2 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 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\2024-06-16_1edae706b6ba5c74c4e614551bb50add_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-16_1edae706b6ba5c74c4e614551bb50add_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2632
    • C:\Users\Admin\AppData\Roaming\Fivemdata.exe
      "C:\Users\Admin\AppData\Roaming\Fivemdata.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:4588
      • 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:5112
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:4744
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2588
      • 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:3436
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2220
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:4608
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3644
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:3564
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\readme.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:4592
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:860
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2208
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1624
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2056

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\2024-06-16_1edae706b6ba5c74c4e614551bb50add_wannacry.exe.log
      Filesize

      226B

      MD5

      28d7fcc2b910da5e67ebb99451a5f598

      SHA1

      a5bf77a53eda1208f4f37d09d82da0b9915a6747

      SHA256

      2391511d0a66ed9f84ae54254f51c09e43be01ad685db80da3201ec880abd49c

      SHA512

      2d8eb65cbf04ca506f4ef3b9ae13ccf05ebefab702269ba70ffd1ce9e6c615db0a3ee3ac0e81a06f546fc3250b7b76155dd51241c41b507a441b658c8e761df6

      Download Submit

    • C:\Users\Admin\AppData\Local\readme.txt
      Filesize

      1KB

      MD5

      771f7ffac472fc3cbe35c5f57bfe40a4

      SHA1

      759fd780831aa6150bfcf5700e52b13c1a0b8946

      SHA256

      c907cfd92f8d3945dcd61ab28e488ef26a6d8eb7b36f979dc99cb51a2533bbf2

      SHA512

      201b035902e454960ec8b223f4f219cf50a933b6fa49df0e9ee1343e11aa1d868faca78296187197f7632f079e72d4a16b6ee8fe7e3ee1a8fe59df8fd1ee845e

      Download Submit

    • C:\Users\Admin\AppData\Roaming\DenySet.svg
      Filesize

      1B

      MD5

      d1457b72c3fb323a2671125aef3eab5d

      SHA1

      5bab61eb53176449e25c2c82f172b82cb13ffb9d

      SHA256

      8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

      SHA512

      ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

      Download Submit

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

      211KB

      MD5

      1edae706b6ba5c74c4e614551bb50add

      SHA1

      3aa456a3e8b74fa7237158ed90c79e06e87d3fb0

      SHA256

      d8d7964db066a0d46060fbff334cf56292ba4dbba875d86e59a24e75841c85eb

      SHA512

      c39babf21f2046d0f49b176718cbe82352c7afcfcd7128b380fbad1958f0718cde990cf7697de025b9ec1b656f6ae6ad062be3ff4c0901a17aecb4c098137b40

      Download Submit

    • memory/2632-0-0x0000000000A30000-0x0000000000A6C000-memory.dmp

      Filesize

      240KB

      Download

    • memory/2632-1-0x00007FFA50503000-0x00007FFA50505000-memory.dmp

      Filesize

      8KB

      Download

    • memory/4588-14-0x00007FFA50500000-0x00007FFA50FC1000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/4588-52-0x00007FFA50500000-0x00007FFA50FC1000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/4588-1129-0x00007FFA50500000-0x00007FFA50FC1000-memory.dmp

      Filesize

      10.8MB

      Download