Analysis Overview
SHA256
03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7
Threat Level: Known bad
The file 03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7 was found to be: Known bad.
Malicious Activity Summary
Remcos family
Checks computer location settings
Executes dropped EXE
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-03-29 04:06
Signatures
Remcos family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-29 04:06
Reported
2024-03-29 04:08
Platform
win10v2004-20240226-en
Max time kernel
149s
Max time network
151s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-3XK1S0 = "\"C:\\Users\\Admin\\AppData\\Roaming\\microsofts\\svcs.exe\"" | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-3XK1S0 = "\"C:\\Users\\Admin\\AppData\\Roaming\\microsofts\\svcs.exe\"" | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-3XK1S0 = "\"C:\\Users\\Admin\\AppData\\Roaming\\microsofts\\svcs.exe\"" | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-3XK1S0 = "\"C:\\Users\\Admin\\AppData\\Roaming\\microsofts\\svcs.exe\"" | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe | N/A |
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1264 wrote to memory of 4192 | N/A | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe |
| PID 1264 wrote to memory of 4192 | N/A | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe |
| PID 1264 wrote to memory of 4192 | N/A | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe
"C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe"
C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe
"C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| IT | 185.196.11.223:1998 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 223.11.196.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | geoplugin.net | udp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.33.237.178.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| IT | 185.196.11.223:1998 | leetboy.dynuddns.net | tcp |
| IT | 185.196.11.223:1998 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| IT | 185.196.11.223:1998 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | 17.173.189.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe
| MD5 | 06f5b8dffc6c138828adbc7f29cfc7f0 |
| SHA1 | b59ef5d613a1e49c7034c3ee05780ce054ca0054 |
| SHA256 | 03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7 |
| SHA512 | e706a0b3b1981cac8ddcf81482b306b4538fbfbf5c332f2b484f8c503b66d73cd09ffaab0515ecb2063d1e4a27dc30a662cc0be4f5287d2982cfbb47c7dad893 |
C:\ProgramData\logsa\logs.dat
| MD5 | 2b84fdcf91527b195757358adc27de82 |
| SHA1 | 73bf6ee5644cf7ab210e6563ca1aebda32a1f20f |
| SHA256 | 4bfb0c0e08b611063cad7356cb92b060313f914ece6af35835cfe41d52ef2a57 |
| SHA512 | ec255e1cd4596455ff66fc78024149c9054264ebf460aacb7d45281e700a7f7b012c70951a605936b242c2d9775bb026320840960351a21d81e19973d83e27ac |
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-29 04:06
Reported
2024-03-29 04:08
Platform
win11-20240221-en
Max time kernel
148s
Max time network
151s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4181651180-3163410697-3990547336-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-3XK1S0 = "\"C:\\Users\\Admin\\AppData\\Roaming\\microsofts\\svcs.exe\"" | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-3XK1S0 = "\"C:\\Users\\Admin\\AppData\\Roaming\\microsofts\\svcs.exe\"" | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4181651180-3163410697-3990547336-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-3XK1S0 = "\"C:\\Users\\Admin\\AppData\\Roaming\\microsofts\\svcs.exe\"" | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-3XK1S0 = "\"C:\\Users\\Admin\\AppData\\Roaming\\microsofts\\svcs.exe\"" | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | N/A |
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4824 wrote to memory of 4964 | N/A | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe |
| PID 4824 wrote to memory of 4964 | N/A | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe |
| PID 4824 wrote to memory of 4964 | N/A | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe
"C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe"
C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe
"C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| IT | 185.196.11.223:1998 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | 223.11.196.185.in-addr.arpa | udp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
| US | 52.111.227.13:443 | tcp | |
| IT | 185.196.11.223:1998 | leetboy.dynuddns.net | tcp |
| IT | 185.196.11.223:1998 | leetboy.dynuddns.net | tcp |
| IT | 185.196.11.223:1998 | leetboy.dynuddns.net | tcp |
Files
C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe
| MD5 | 06f5b8dffc6c138828adbc7f29cfc7f0 |
| SHA1 | b59ef5d613a1e49c7034c3ee05780ce054ca0054 |
| SHA256 | 03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7 |
| SHA512 | e706a0b3b1981cac8ddcf81482b306b4538fbfbf5c332f2b484f8c503b66d73cd09ffaab0515ecb2063d1e4a27dc30a662cc0be4f5287d2982cfbb47c7dad893 |
C:\ProgramData\logsa\logs.dat
| MD5 | 2b84fdcf91527b195757358adc27de82 |
| SHA1 | 73bf6ee5644cf7ab210e6563ca1aebda32a1f20f |
| SHA256 | 4bfb0c0e08b611063cad7356cb92b060313f914ece6af35835cfe41d52ef2a57 |
| SHA512 | ec255e1cd4596455ff66fc78024149c9054264ebf460aacb7d45281e700a7f7b012c70951a605936b242c2d9775bb026320840960351a21d81e19973d83e27ac |