General
- Target RatKiller.bat
- Size 866KB
- Sample261110-kxp95av13l
- SHA256 d17c6931ad3004fe7886d578a7ba5efdc5d5645aa52f251cf3736d432b6610c3
- MD5 23a9c81dd2646ae670a91c61345d5e6d
- SHA1 0fe11ced606677fb2493214c9f9fa53af257681a
- SHA512 86ff681d86dcb5a79d4c7bae8634d8afce8b5c5c178b768e837f35fa3f642738197c9a3ea7e7a94fe8b83f9ee0fc147feed1059ef1f0f0e47fa9d70f39dc6153
- SSDEEP 12288:xF+Pvyd+sdgtgda4o4LuaIzpWh8YpbqBcEyOiiPzjxE:L+PvsfdgOda4o4LuaI0peBcEyOtPRE
- TLSH T16815E6736207FCDEAB1F4FDAE69025004C8C68EB0B65D4BCBDCD149636B9849DEA6470
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
RatKiller.bat
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
RatKiller.bat
Resource
win11ltsc2024-20260911-en
Malware Config
Extracted
-
sheetrat
-
2.6.4
-
openport.pw:35240
Targets
-
- Target RatKiller.bat
- Size 866KB
- SHA256 d17c6931ad3004fe7886d578a7ba5efdc5d5645aa52f251cf3736d432b6610c3
- MD5 23a9c81dd2646ae670a91c61345d5e6d
- SHA1 0fe11ced606677fb2493214c9f9fa53af257681a
- SHA512 86ff681d86dcb5a79d4c7bae8634d8afce8b5c5c178b768e837f35fa3f642738197c9a3ea7e7a94fe8b83f9ee0fc147feed1059ef1f0f0e47fa9d70f39dc6153
- SSDEEP 12288:xF+Pvyd+sdgtgda4o4LuaIzpWh8YpbqBcEyOiiPzjxE:L+PvsfdgOda4o4LuaI0peBcEyOtPRE
- TLSH T16815E6736207FCDEAB1F4FDAE69025004C8C68EB0B65D4BCBDCD149636B9849DEA6470
- 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.
Detects Sheetrat obfuscated V1.8 and higher
Sheetrat aka NonEuclid RAT is a trojan written in C#.
Detects Sheetrat obfuscated version
Modifies WinLogon for persistence
Modifies Windows Defender Real-time Protection settings
UAC bypass
Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
Disables RegEdit via registry modification
Disables Task Manager via registry modification
Disables cmd.exe use via registry modification
Drops file in Drivers directory
Event Triggered Execution: AppInit DLLs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
Event Triggered Execution: Image File Execution Options Injection
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
Loads dropped DLL
Stops running service(s)
Windows security modification
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks whether UAC is enabled
Indicator Removal: Clear Persistence
Clear artifacts associated with previously established persistence like scheduletasks on a host.
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.
Hide Artifacts: Hidden Files and Directories
Sets desktop wallpaper using registry
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3PowerShell
1Visual Basic
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1System Services
1Service Execution
1Persistence
Boot or Logon Autostart Execution
4Active Setup
1Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Create or Modify System Process
4Windows Service
4Event Triggered Execution
2AppInit DLLs
1Image File Execution Options Injection
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
4Active Setup
1Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Create or Modify System Process
4Windows Service
4Event Triggered Execution
2AppInit DLLs
1Image File Execution Options Injection
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Deobfuscate/Decode Files or Information
1Hide Artifacts
1Hidden Files and Directories
1Impair Defenses
6Disable or Modify Tools
5Indicator Removal
1Clear Persistence
1Modify Registry
11Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1