Windows
Analysis Report
8FA3B2EB7650AC7FF7DBBEED506E3F17B805D64D69327.exe
Overview
General Information
Detection
Nanocore
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Found malware configuration
Multi AV Scanner detection for submitted file
Malicious sample detected (through community Yara rule)
Sigma detected: NanoCore
Detected Nanocore Rat
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Antivirus detection for dropped file
Multi AV Scanner detection for dropped file
Yara detected Nanocore RAT
Snort IDS alert for network traffic
Machine Learning detection for sample
.NET source code contains potential unpacker
Machine Learning detection for dropped file
C2 URLs / IPs found in malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses dynamic DNS services
Uses 32bit PE files
Yara signature match
Antivirus or Machine Learning detection for unpacked file
May sleep (evasive loops) to hinder dynamic analysis
Internet Provider seen in connection with other malware
Detected potential crypto function
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to call native functions
Contains long sleeps (>= 3 min)
Enables debug privileges
Creates a DirectInput object (often for capturing keystrokes)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Installs a raw input device (often for capturing keystrokes)
Sample file is different than original file name gathered from version info
Drops PE files
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Detected TCP or UDP traffic on non-standard ports
Creates a process in suspended mode (likely to inject code)
Classification
- System is w10x64
8FA3B2EB7650AC7FF7DBBEED506E3F17B805D64D69327.exe (PID: 6408 cmdline:
"C:\Users\ user\Deskt op\8FA3B2E B7650AC7FF 7DBBEED506 E3F17B805D 64D69327.e xe" MD5: DF1DC1A245D93014003E9ECC4F654602) schtasks.exe (PID: 6448 cmdline:
schtasks.e xe" /creat e /f /tn " DHCP Monit or" /xml " C:\Users\u ser\AppDat a\Local\Te mp\tmp187C .tmp MD5: 15FF7D8324231381BAD48A052F85DF04) conhost.exe (PID: 6488 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496) schtasks.exe (PID: 6544 cmdline:
schtasks.e xe" /creat e /f /tn " DHCP Monit or Task" / xml "C:\Us ers\user\A ppData\Loc al\Temp\tm p21A4.tmp MD5: 15FF7D8324231381BAD48A052F85DF04) conhost.exe (PID: 6624 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
8FA3B2EB7650AC7FF7DBBEED506E3F17B805D64D69327.exe (PID: 6536 cmdline:
C:\Users\u ser\Deskto p\8FA3B2EB 7650AC7FF7 DBBEED506E 3F17B805D6 4D69327.ex e 0 MD5: DF1DC1A245D93014003E9ECC4F654602)
dhcpmon.exe (PID: 6776 cmdline:
"C:\Progra m Files (x 86)\DHCP M onitor\dhc pmon.exe" 0 MD5: DF1DC1A245D93014003E9ECC4F654602)
dhcpmon.exe (PID: 6860 cmdline:
"C:\Progra m Files (x 86)\DHCP M onitor\dhc pmon.exe" MD5: DF1DC1A245D93014003E9ECC4F654602)
- cleanup
{"Version": "1.2.2.0", "Mutex": "3577d152-ce3c-4012-b95b-9d207c3b", "Group": "Default", "Domain1": "khalil3131.ddns.net", "Domain2": "127.0.0.1", "Port": 1991, "KeyboardLogging": "Enable", "RunOnStartup": "Enable", "RequestElevation": "Enable", "BypassUAC": "Enable", "ClearZoneIdentifier": "Enable", "ClearAccessControl": "Disable", "SetCriticalProcess": "Disable", "PreventSystemSleep": "Enable", "ActivateAwayMode": "Disable", "EnableDebugMode": "Disable", "RunDelay": 0, "ConnectDelay": 4000, "RestartDelay": 5000, "TimeoutInterval": 5000, "KeepAliveTimeout": 30000, "MutexTimeout": 5000, "LanTimeout": 2500, "WanTimeout": 8000, "BufferSize": "ffff0000", "MaxPacketSize": "0000a000", "GCThreshold": "0000a000", "UseCustomDNS": "Enable", "PrimaryDNSServer": "8.8.8.8", "BackupDNSServer": "8.8.4.4", "BypassUserAccountControlData": "<?xml version=\"1.0\" encoding=\"UTF-16\"?>\r\n<Task version=\"1.2\" xmlns=\"http://schemas.microsoft.com/windows/2004/02/mit/task\">\r\n <RegistrationInfo />\r\n <Triggers />\r\n <Principals>\r\n <Principal id=\"Author\">\r\n <LogonType>InteractiveToken</LogonType>\r\n <RunLevel>HighestAvailable</RunLevel>\r\n </Principal>\r\n </Principals>\r\n <Settings>\r\n <MultipleInstancesPolicy>Parallel</MultipleInstancesPolicy>\r\n <DisallowStartIfOnBatteries>false</DisallowStartIfOnBatteries>\r\n <StopIfGoingOnBatteries>false</StopIfGoingOnBatteries>\r\n <AllowHardTerminate>true</AllowHardTerminate>\r\n <StartWhenAvailable>false</StartWhenAvailable>\r\n <RunOnlyIfNetworkAvailable>false</RunOnlyIfNetworkAvailable>\r\n <IdleSettings>\r\n <StopOnIdleEnd>false</StopOnIdleEnd>\r\n <RestartOnIdle>false</RestartOnIdle>\r\n </IdleSettings>\r\n <AllowStartOnDemand>true</AllowStartOnDemand>\r\n <Enabled>true</Enabled>\r\n <Hidden>false</Hidden>\r\n <RunOnlyIfIdle>false</RunOnlyIfIdle>\r\n <WakeToRun>false</WakeToRun>\r\n <ExecutionTimeLimit>PT0S</ExecutionTimeLimit>\r\n <Priority>4</Priority>\r\n </Settings>\r\n <Actions Context=\"Author\">\r\n <Exec>\r\n <Command>\"#EXECUTABLEPATH\"</Command>\r\n <Arguments>$(Arg0)</Arguments>\r\n </Exec>\r\n </Actions>\r\n</Task"}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
Nanocore_RAT_Gen_2 | Detetcs the Nanocore RAT | Florian Roth |
| |
Nanocore_RAT_Feb18_1 | Detects Nanocore RAT | Florian Roth |
| |
JoeSecurity_Nanocore | Yara detected Nanocore RAT | Joe Security | ||
MALWARE_Win_NanoCore | Detects NanoCore | ditekSHen |
| |
NanoCore | unknown | Kevin Breen <kevin@techanarchy.net> |
|
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
Nanocore_RAT_Gen_2 | Detetcs the Nanocore RAT | Florian Roth |
| |
Nanocore_RAT_Feb18_1 | Detects Nanocore RAT | Florian Roth |
| |
JoeSecurity_Nanocore | Yara detected Nanocore RAT | Joe Security | ||
MALWARE_Win_NanoCore | Detects NanoCore | ditekSHen |
| |
NanoCore | unknown | Kevin Breen <kevin@techanarchy.net> |
|
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
Nanocore_RAT_Gen_2 | Detetcs the Nanocore RAT | Florian Roth |
| |
JoeSecurity_Nanocore | Yara detected Nanocore RAT | Joe Security | ||
NanoCore | unknown | Kevin Breen <kevin@techanarchy.net> |
| |
JoeSecurity_Nanocore | Yara detected Nanocore RAT | Joe Security | ||
NanoCore | unknown | Kevin Breen <kevin@techanarchy.net> |
|