Overview

overview

10

Static

static

10

2024-09-08...ry.exe

windows7-x64

10

2024-09-08...ry.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    08-09-2024 07:33

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General

  • Target

    2024-09-08_6b573d2e5879c3cb307b1e1fdb9087f4_wannacry.exe

  • Size

    245KB

  • MD5

    6b573d2e5879c3cb307b1e1fdb9087f4

  • SHA1

    690d83a67319f6ff98690776e86dc0704b0d4a92

  • SHA256

    0545950ceb362f4f82da58a3c24825c26e188e210d345fbd127ad75b0f8dbcc9

  • SHA512

    674f061c61277f2b73a9d9b12ae83039ac3607c8bb0b043ac0ba9806eaef57508869e706bf9179258700dea6ae83ab87c64bac00441ab09df645a59720f71656

  • SSDEEP

    6144:BAHLSHCsulgv6ZZJJchBRsZVOB45r9iTIbdiLEusp:SrSLNv652bbB428bgY1p

Score
10/10
chaosdefense_evasionevasionexecutionimpactransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\Documents\read_it.txt

Family

chaos

Ransom Note
----> Chaos is multi language ransomware. Translate your note to any language <---- All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help.What can I do to get my files back?You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software is $1,500. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - hxxps://www.coinmama.com Bitpanda - hxxps://www.bitpanda.com Payment informationAmount: 0.1473766 BTC Bitcoin Address: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

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

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 2 IoCs
    evasion
  • Looks for VMWare Tools registry key 2 TTPs 2 IoCs
    evasion
  • Checks BIOS information in registry 2 TTPs 4 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Drops startup file 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 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
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Interacts with shadow copies 3 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs
  • 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\2024-09-08_6b573d2e5879c3cb307b1e1fdb9087f4_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-08_6b573d2e5879c3cb307b1e1fdb9087f4_wannacry.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Maps connected drives based on registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2824
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Looks for VirtualBox Guest Additions in registry
      • Looks for VMWare Tools registry key
      • Checks BIOS information in registry
      • Drops startup file
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops desktop.ini file(s)
      • Maps connected drives based on registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2700
      • 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:1780
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:1360
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2020
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 2700 -s 996
        3⤵
          PID:1076
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2224

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      245KB

      MD5

      6b573d2e5879c3cb307b1e1fdb9087f4

      SHA1

      690d83a67319f6ff98690776e86dc0704b0d4a92

      SHA256

      0545950ceb362f4f82da58a3c24825c26e188e210d345fbd127ad75b0f8dbcc9

      SHA512

      674f061c61277f2b73a9d9b12ae83039ac3607c8bb0b043ac0ba9806eaef57508869e706bf9179258700dea6ae83ab87c64bac00441ab09df645a59720f71656

      Download Submit

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

      964B

      MD5

      4217b8b83ce3c3f70029a056546f8fd0

      SHA1

      487cdb5733d073a0427418888e8f7070fe782a03

      SHA256

      7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

      SHA512

      2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

      Download Submit

    • \Users\Admin\AppData\Local\Temp\Runtime.MSIL.1.0.0.0\sByte.dll
      Filesize

      39KB

      MD5

      d80d1b6d9a6d5986fa47f6f8487030e1

      SHA1

      8f5773bf9eca43b079c1766b2e9f44cc90bd9215

      SHA256

      446128f1712da8064d0197376184315cb529ed26ed9122f7b171bb208e22c0c3

      SHA512

      9fcf0105c2c9ee81c526d41633d93579bb8e2837989d77fb4a6523440415ec2d7fa46ac9ae4e55ecebd99126837817ac308cc079475de02667b21727a43d74cc

      Download Submit

    • memory/2700-15-0x000007FEF5430000-0x000007FEF5E1C000-memory.dmp

      Filesize

      9.9MB

      Download

    • memory/2700-14-0x000007FEF5430000-0x000007FEF5E1C000-memory.dmp

      Filesize

      9.9MB

      Download

    • memory/2700-13-0x00000000012B0000-0x00000000012F4000-memory.dmp

      Filesize

      272KB

      Download

    • memory/2700-122-0x000007FEF5430000-0x000007FEF5E1C000-memory.dmp

      Filesize

      9.9MB

      Download

    • memory/2700-148-0x000007FEF5430000-0x000007FEF5E1C000-memory.dmp

      Filesize

      9.9MB

      Download

    • memory/2824-3-0x000007FEF5430000-0x000007FEF5E1C000-memory.dmp

      Filesize

      9.9MB

      Download

    • memory/2824-7-0x00000000001D0000-0x00000000001D8000-memory.dmp

      Filesize

      32KB

      Download

    • memory/2824-2-0x00000000001B0000-0x00000000001BC000-memory.dmp

      Filesize

      48KB

      Download

    • memory/2824-0-0x000007FEF5433000-0x000007FEF5434000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2824-18-0x000007FEF5430000-0x000007FEF5E1C000-memory.dmp

      Filesize

      9.9MB

      Download

    • memory/2824-1-0x00000000000B0000-0x00000000000F4000-memory.dmp

      Filesize

      272KB

      Download