Analysis
- max time kernel
16s - max time network
143s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
11/10/2026, 17:29
General
- Target 148c2d55d317029444578d478aeedcc834cffa4db695702adc8add568b517557.exe
- Size 23KB
- Sample261011-v21a1ax18l
- SHA256 148c2d55d317029444578d478aeedcc834cffa4db695702adc8add568b517557
Malware Config
Extracted
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C:\Users\Admin\Contacts\read_it.txt
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chaos
- ----> 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
- Family: Chaos
Ransomware family first seen in June 2021.
- Chaos Ransomware 2 IoCs
- Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
- Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
- Deletes backup catalog 3 TTPs 1 IoCs
Uses wbadmin.exe to inhibit system recovery.
- Creates a file in the Startup directory 1 TTPs 1 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Executes a file named after a Windows system binary 1 TTPs 2 IoCs
The file runs from a user directory while carrying the name of an executable that normally only exists in System32.
- Executes dropped EXE 1 IoCs
- Drops desktop.ini file(s) 14 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 3 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
- Opens file in notepad (likely ransom note) 1 IoCs
- Suspicious behavior: EnumeratesProcesses 63 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\148c2d55d317029444578d478aeedcc834cffa4db695702adc8add568b517557.exe"C:\Users\Admin\AppData\Local\Temp\148c2d55d317029444578d478aeedcc834cffa4db695702adc8add568b517557.exe"1⤵
- Executes a file named after a Windows system binary
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Creates a file in the Startup directory
- Executes a file named after a Windows system binary
- Executes dropped EXE
- Drops desktop.ini file(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Executes a command shell one-liner
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no3⤵
- Executes a command shell one-liner
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Executes a command shell one-liner
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt3⤵
- Opens file in notepad (likely ransom note)
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2Windows Command Shell
1Windows Management Instrumentation
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
svchost.exe
read_it.txt
DisconnectRegister.mp3
desktop.ini.il8z
memory/5796-12-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5796-413-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5796-6-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5796-7-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5796-8-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5796-429-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5796-10-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5796-11-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5796-428-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5796-424-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5796-420-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5796-409-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5796-403-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5796-404-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5796-408-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5812-1-0x00007FFBB0ABF000-0x00007FFBB0AC0000-memory.dmp
memory/5812-4-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5812-2-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5812-3-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp
memory/5812-0-0x0000000000260000-0x000000000026C000-memory.dmp
memory/5812-9-0x00007FFBB0930000-0x00007FFBB12D4000-memory.dmp