General
- Target Nursultan.exe
- Size 2.1MB
- Sample261102-t4eawaxx4m
- SHA256 b790035d175e34b5198f379ae6c876cf9d083cb29024616ed194e99b964ccfd5
- MD5 5fb2fad21e08bcce1f9bed1bf638bbf3
- SHA1 e7230e0fd5b6ddff996e74c1d475f7ac468d9910
- SHA512 4c99bef46772de7563658c7305f1534f72bc97ae206c455b91b154de7fb0afc0354617b9519aa7934c57adc4d765089cd0cb9c67bdab649ced9d03788446ce8a
- SSDEEP 24576:/s7FuGmUT6LpKe0bBZYP7AsVoz+0rXHOFYag734uibuP6sZmm3:+u0AoBA7RM+QOFHgTdFM
- TLSH T1C9A518187FA0A905D9592A7E86EA1110C77250D12B33A3073707BEF64E107EEDD693FA
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
Nursultan.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
Nursultan.exe
Resource
win11-20260911-en
Malware Config
Extracted
-
sheetrat
-
1.8
-
0.cantdown.su:1786
Extracted
-
xworm
-
XWorm V7.1
-
0.cantdown.su:1786
-
Install_directory
%AppData%
-
install_file
XWormClient.exe
Extracted
-
sheetrat
-
2.6.4
-
0.cantdown.su:1786
Extracted
-
xorium_stealer
-
https://api.telegram.org/bot9118041330:AAElT-04bLVLm-NIlansJOqxJpKziXEjPJI/sendDocument
-
user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36
Targets
-
- Target Nursultan.exe
- Size 2.1MB
- SHA256 b790035d175e34b5198f379ae6c876cf9d083cb29024616ed194e99b964ccfd5
- MD5 5fb2fad21e08bcce1f9bed1bf638bbf3
- SHA1 e7230e0fd5b6ddff996e74c1d475f7ac468d9910
- SHA512 4c99bef46772de7563658c7305f1534f72bc97ae206c455b91b154de7fb0afc0354617b9519aa7934c57adc4d765089cd0cb9c67bdab649ced9d03788446ce8a
- SSDEEP 24576:/s7FuGmUT6LpKe0bBZYP7AsVoz+0rXHOFYag734uibuP6sZmm3:+u0AoBA7RM+QOFHgTdFM
- TLSH T1C9A518187FA0A905D9592A7E86EA1110C77250D12B33A3073707BEF64E107EEDD693FA
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Detect Xworm Payload
-
Detects Sheetrat obfuscated V1.8 and higher
Sheetrat aka NonEuclid RAT is a trojan written in C#.
-
Detects Sheetrat obfuscated version
-
Detects XoriumStealer payload
-
Modifies WinLogon for persistence
-
Event Triggered Execution: AppInit DLLs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE
-
Loads dropped DLL
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Accesses Microsoft Outlook profiles
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Adds Run key to start application
-
Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
2AppInit DLLs
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
2AppInit DLLs
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
1Credentials in Registry
1