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Overview

overview

10

Static

static

10

8d0f1d92b4...5e.exe

windows7-x64

10

8d0f1d92b4...5e.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    140s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/07/2023, 07:41

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General

  • Target

    8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e.exe

  • Size

    342KB

  • MD5

    28cfa829e7c09385aac5eae9439fb961

  • SHA1

    71b0a00a387f50ab4727b6eb52ef52945837ebb0

  • SHA256

    8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e

  • SHA512

    51201855b63f1130bb08ac48af17a1c0281e86c707a78b14a30087404acb863a872f985d925a80bcec965316c18e493ad01306d5840428ff0b554fe9a8b836d8

  • SSDEEP

    3072:iobbyor9dM9xCHGHQqEINH+pXzLjXR9DapqgPqtC26QjcwP0gjOkAZiLMRr+Zqql:vr9dMO/qEho/Pq/6QtI7szwup1jL0u

Score
10/10
chaosevasionransomwarespywarestealer

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 0.05 BTC. 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. once payment is recieved and confirmed, the decrypting software will be sent to you through your mail or best way known to us. NOTE: YOU HAVE LIMITED TIME AND NO THIRD PARTY SHOULD BE INVOLVED ELSE WANTS TO LOOSE YOUR FILE Payment informationAmount: 0.05 BTC WALLET Address (BEP 20 NETWORK): 0x064329f556642e7df337cab8ae6116eac8723175

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

    ransomwarechaos
  • Chaos Ransomware 4 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • 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 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 56 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of FindShellTrayWindow 1 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\8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e.exe
    "C:\Users\Admin\AppData\Local\Temp\8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4892
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.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:4552
      • 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:1852
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:4908
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1456
      • 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:5040
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1076
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:4604
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2472
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:3680
      • 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)
        • Suspicious use of FindShellTrayWindow
        PID:1452
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4932
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2068
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:548
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:116

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\read_it.txt
      Filesize

      1KB

      MD5

      e1c4d147e1841231b2773b5d4c3b1618

      SHA1

      f0469e7eadda1a916acc77e91abb0320b395a380

      SHA256

      ccef53de379cfaacc903f0989dadb640946980715819e7c10cec261534f01af3

      SHA512

      eb75815fd4e28612589071319df0405da054f131bc24064e249f2f524d1a413381d9313b5528608d078bf38e87b7fa3e9dea57edf147ce9b4425f550129d4910

      Download Submit

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

      342KB

      MD5

      28cfa829e7c09385aac5eae9439fb961

      SHA1

      71b0a00a387f50ab4727b6eb52ef52945837ebb0

      SHA256

      8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e

      SHA512

      51201855b63f1130bb08ac48af17a1c0281e86c707a78b14a30087404acb863a872f985d925a80bcec965316c18e493ad01306d5840428ff0b554fe9a8b836d8

      Download Submit

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

      342KB

      MD5

      28cfa829e7c09385aac5eae9439fb961

      SHA1

      71b0a00a387f50ab4727b6eb52ef52945837ebb0

      SHA256

      8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e

      SHA512

      51201855b63f1130bb08ac48af17a1c0281e86c707a78b14a30087404acb863a872f985d925a80bcec965316c18e493ad01306d5840428ff0b554fe9a8b836d8

      Download Submit

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

      342KB

      MD5

      28cfa829e7c09385aac5eae9439fb961

      SHA1

      71b0a00a387f50ab4727b6eb52ef52945837ebb0

      SHA256

      8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e

      SHA512

      51201855b63f1130bb08ac48af17a1c0281e86c707a78b14a30087404acb863a872f985d925a80bcec965316c18e493ad01306d5840428ff0b554fe9a8b836d8

      Download Submit

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

      1KB

      MD5

      e1c4d147e1841231b2773b5d4c3b1618

      SHA1

      f0469e7eadda1a916acc77e91abb0320b395a380

      SHA256

      ccef53de379cfaacc903f0989dadb640946980715819e7c10cec261534f01af3

      SHA512

      eb75815fd4e28612589071319df0405da054f131bc24064e249f2f524d1a413381d9313b5528608d078bf38e87b7fa3e9dea57edf147ce9b4425f550129d4910

      Download Submit

    • memory/4552-147-0x00007FFEF4B20000-0x00007FFEF55E1000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/4552-351-0x00007FFEF4B20000-0x00007FFEF55E1000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/4892-133-0x0000000000AC0000-0x0000000000B1C000-memory.dmp

      Filesize

      368KB

      Download

    • memory/4892-134-0x00007FFEF4B20000-0x00007FFEF55E1000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/4892-148-0x00007FFEF4B20000-0x00007FFEF55E1000-memory.dmp

      Filesize

      10.8MB

      Download