General
- Target http://github.com
- Sample260803-l7bedsfg89
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
http://github.com
Resource
win10v2004-20260513-en
Malware Config
Extracted
-
crimsonrat
-
185.136.161.124
Extracted
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njrat
-
0.7d
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Geforce
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startitit2-23969.portmap.host:1604
-
b9584a316aeb9ca9b31edd4db18381f5
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reg_key
b9584a316aeb9ca9b31edd4db18381f5
-
splitter
Y262SUCZ4UJJ
Extracted
-
darkcomet
-
Guest1111
-
193.242.166.48:1605
-
DC_MUTEX-2QRLPN3
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InstallPath
Windupdt\winupdate.exe
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gencode
Rb5l52XcV9no
-
install
true
-
offline_keylogger
false
-
password
313131
-
persistence
true
-
reg_key
winupdater
Targets
-
- Target http://github.com
-
CrimsonRAT main payload
-
Modifies WinLogon for persistence
-
Downloads MZ/PE file
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Modifies Windows Firewall
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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
-
Unsecured Credentials: Credentials In Files
Steal credentials from unsecured files.
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Adds Run key to start application
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Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
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Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
2Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
3Credentials In Files
3