General
- Target catlavan.msi
- Size 6.0MB
- Sample260729-n94j3avybs
- SHA256 81b8d0465187fdb51bbf7712f071b6acd77464258d0fc1e08fe66b905224fa25
- MD5 c6a02c3a2ff024b117f392b3c5a61a4e
- SHA1 06c348646b36263015f0ff4c660094de73552198
- SHA512 fd603ee74cd7aac574f6a7d68646908fd783493405a847dd64405643e1b854575ae52fb6a75d18215753fdd203a79243f530844e950926a05efd0e1dbc9fea1c
- SSDEEP 98304:E0CmJeYnDjef24jbyjNXU4Z4acj4Qlcv8FrVOotvfr:E6sYDjeVwUecp6vGrVOonr
- TLSH T10456AF52D8614197D8AA533A4DAAA436B2603C010F3177FB2B14B3AA7E76DC4097CF7D
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
catlavan.msi
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
catlavan.msi
Resource
win11ltsc2024-20260709-en
Malware Config
Targets
-
- Target catlavan.msi
- Size 6.0MB
- SHA256 81b8d0465187fdb51bbf7712f071b6acd77464258d0fc1e08fe66b905224fa25
- MD5 c6a02c3a2ff024b117f392b3c5a61a4e
- SHA1 06c348646b36263015f0ff4c660094de73552198
- SHA512 fd603ee74cd7aac574f6a7d68646908fd783493405a847dd64405643e1b854575ae52fb6a75d18215753fdd203a79243f530844e950926a05efd0e1dbc9fea1c
- SSDEEP 98304:E0CmJeYnDjef24jbyjNXU4Z4acj4Qlcv8FrVOotvfr:E6sYDjeVwUecp6vGrVOonr
- TLSH T10456AF52D8614197D8AA533A4DAAA436B2603C010F3177FB2B14B3AA7E76DC4097CF7D
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Detects DonutLoader
-
Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
-
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.
-
Executes dropped EXE
-
Adds Run key to start application
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Executes a VBScript file via the Windows Script Host.
-
Suspicious use of NtSetInformationThreadHideFromDebugger
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3PowerShell
1Visual Basic
1Windows Command Shell
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Event Triggered Execution
1Installer Packages
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Event Triggered Execution
1Installer Packages
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1