Resubmissions
19/03/2025, 15:09
250319-sjrj2axzdv19/03/2025, 15:08
250319-sjdceaxzdt1007/02/2025, 13:44
250207-q1wtzatqcr1007/02/2025, 13:35
250207-qvwxsasnds1007/02/2025, 13:27
250207-qqfp1asmds1017/01/2025, 11:40
250117-ns1f3svrfx1026/12/2024, 15:01
241226-sec6vayjgx1004/10/2024, 12:37
241004-ptqtpsthrn04/10/2024, 09:58
241004-lzh49sxfkr27/09/2024, 10:28
240927-mh3m1sxgrm10General
- Target vir.exe
- Size 336.1MB
- Sample241226-sec6vayjgx
- SHA256 c283ed662a29c18b117ba63ac41cca356934c6a29a1eb66e30d8305637e3411b
- MD5 bc82ea785da1180a8a964b3e54ad106c
- SHA1 4c1952ce778455af8ed10dca7b9f77d7815e8d0a
- SHA512 62bf34d75e913a47185664a34555678d0b8c2cf03c9e922b0bdcb085713322bafba2bf396b43a4cda7e0be6d315aea027bba29c628fe561d01e3026b4e0b405b
- SSDEEP 6291456:72qVJw+odBeWFv1k4R4b0ewZkhT4ofHwJjvZDQPf2tLSkHZdHVeVF0oJ:yr+WeSWgfecGT4RjvqP85/A33
- MD5 SHA1 SHA512 SSDEEP
Behavioral task
behavioral1
Sample
vir.exe
Resource
win11-20241007-de
Malware Config
Extracted
-
quasar
-
reconnect_delay
3000
Extracted
-
quasar
-
1.4.1
-
romka
-
jozzu420-51305.portmap.host:51305
-
0445c342-b551-411c-9b80-cd437437f491
-
encryption_key
E1BF1D99459F04CAF668F054744BC2C514B0A3D6
-
install_name
Romilyaa.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Windows 10 Boot
-
subdirectory
SubDir
Targets
-
- Target vir.exe
- Size 336.1MB
- SHA256 c283ed662a29c18b117ba63ac41cca356934c6a29a1eb66e30d8305637e3411b
- MD5 bc82ea785da1180a8a964b3e54ad106c
- SHA1 4c1952ce778455af8ed10dca7b9f77d7815e8d0a
- SHA512 62bf34d75e913a47185664a34555678d0b8c2cf03c9e922b0bdcb085713322bafba2bf396b43a4cda7e0be6d315aea027bba29c628fe561d01e3026b4e0b405b
- SSDEEP 6291456:72qVJw+odBeWFv1k4R4b0ewZkhT4ofHwJjvZDQPf2tLSkHZdHVeVF0oJ:yr+WeSWgfecGT4RjvqP85/A33
- MD5 SHA1 SHA512 SSDEEP
Detect Umbral payload
Djvu family
MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
MassLogger Main payload
Masslogger family
Modifies visibility of file extensions in Explorer
Modifies visiblity of hidden/system files in Explorer
Njrat family
Quasar family
Quasar payload
Umbral family
Blocklisted process makes network request
Disables RegEdit via registry modification
Drops file in Drivers directory
Manipulates Digital Signatures
Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.
Modifies Windows Firewall
Possible privilege escalation attempt
.NET Reactor proctector
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
Drops startup file
Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
Executes dropped EXE
Loads dropped DLL
Modifies file permissions
Accesses Microsoft Outlook profiles
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.
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
Modifies WinLogon
Obfuscated Files or Information: Command Obfuscation
Adversaries may obfuscate content during command execution to impede detection.
Password Policy Discovery
Attempt to access detailed information about the password policy used within an enterprise network.
Process spawned suspicious child process
This child process is typically not spawned unless (for example) the parent process crashes. This typically indicates the parent process was unsuccessfully compromised.
AutoIT Executable
AutoIT scripts compiled to PE executables.
Drops file in System32 directory
Enumerates processes with tasklist
Sets desktop wallpaper using registry
Suspicious use of SetThreadContext
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
2PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
2Component Object Model Hijacking
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
2Component Object Model Hijacking
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1File and Directory Permissions Modification
1Hide Artifacts
3Hidden Files and Directories
3Impair Defenses
4Disable or Modify System Firewall
1Disable or Modify Tools
3Modify Registry
10Obfuscated Files or Information
1Command Obfuscation
1Subvert Trust Controls
2Install Root Certificate
1SIP and Trust Provider Hijacking
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Discovery
Browser Information Discovery
1Password Policy Discovery
1Peripheral Device Discovery
2Process Discovery
1Query Registry
7Remote System Discovery
1System Information Discovery
8System Location Discovery
1System Language Discovery
1System Network Configuration Discovery
1Internet Connection Discovery
1