General
- Target cheezu.io_chrome.exe
- Size 77KB
- Sample260817-yn9jasyyay
- SHA256 51ef21c455d6c00bac2d0b5014dd3dcef9a71a642087349b36f3015946dbdc72
- MD5 4c9008ffb027aa8c6f2e5f2343fcd606
- SHA1 e7d889ee67e28409f83cf1c661cf2d015c149038
- SHA512 194354bf0b909b9d0b878bf2c9716addd5c2b1723e57dfef87126042a5e5eb146608cf2f9de52088fa09e862d75a11a6cdc4cc0eeaf2d0625e716699ba4ae46a
- SSDEEP 1536:toai04tmV+P/ShPp80k5+G1Ua4qE3wL03Gp8b8NkEumfcK:tU9tmy90G1T41wL03GOb8qEukL
- TLSH T12373818473FD4324F2BFAAB99DB095414A76BCB7AD22C28D0694064E0576B45CDE0B3F
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
cheezu.io_chrome.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
cheezu.io_chrome.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
http://cheezu.io
-
ac7e2f05-8df7-4c55-8841-78385f6bb064
-
c2_url
http://cheezu.io
-
default_group
xoilac
-
primary_dns
ali.ns.cloudflare.com
-
secondary_dns
woz.ns.cloudflare.com
-
version
1.2.2.0
Targets
-
- Target cheezu.io_chrome.exe
- Size 77KB
- SHA256 51ef21c455d6c00bac2d0b5014dd3dcef9a71a642087349b36f3015946dbdc72
- MD5 4c9008ffb027aa8c6f2e5f2343fcd606
- SHA1 e7d889ee67e28409f83cf1c661cf2d015c149038
- SHA512 194354bf0b909b9d0b878bf2c9716addd5c2b1723e57dfef87126042a5e5eb146608cf2f9de52088fa09e862d75a11a6cdc4cc0eeaf2d0625e716699ba4ae46a
- SSDEEP 1536:toai04tmV+P/ShPp80k5+G1Ua4qE3wL03Gp8b8NkEumfcK:tU9tmy90G1T41wL03GOb8qEukL
- TLSH T12373818473FD4324F2BFAAB99DB095414A76BCB7AD22C28D0694064E0576B45CDE0B3F
- MD5 SHA1 SHA512 SSDEEP TLSH
Contains code to disable Windows Defender
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
Family: clop
Ransomware discovered in early 2019 which has been actively developed since release.
Modifies security service
Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
Grants admin privileges
Uses net.exe to modify the user's privileges.
Modifies boot configuration data using bcdedit
Remote Service Session Hijacking: RDP Hijacking
Adversaries may hijack a legitimate user's remote desktop session to move laterally within an environment.
Disables RegEdit via registry modification
Disables Task Manager via registry modification
Drops file in Drivers directory
Event Triggered Execution: Image File Execution Options Injection
Modifies Windows Firewall
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
Creates a file in the Startup directory
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.
Disables service(s)
Stops running service(s)
Adds Run key to start application
Creates a new local user account
Uses net.exe to create a new local user account, often for persistence or a backdoor account.
Drops file in System32 directory
Executes a VBScript file via the Windows Script Host.
Sets desktop wallpaper using registry
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3PowerShell
1Visual Basic
1Scheduled Task/Job
1Scheduled Task
1System Services
2Service Execution
2Windows Management Instrumentation
1Persistence
Account Manipulation
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create Account
1Local Account
1Create or Modify System Process
5Windows Service
5Event Triggered Execution
2Image File Execution Options Injection
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Account Manipulation
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
5Windows Service
5Event Triggered Execution
2Image File Execution Options Injection
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Direct Volume Access
1Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
1Indicator Removal
3File Deletion
3Modify Registry
4Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1