Analysis Overview
SHA256
676223b89c84ef5893dc5828a91e8b833878659a2c697c086714ecc21f35c740
Threat Level: Known bad
The file 03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.zip was found to be: Known bad.
Malicious Activity Summary
Remcos family
Remcos
Checks computer location settings
Loads dropped DLL
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
2024-04-02 11:26
Signatures
Remcos family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-02 11:26
Reported
2024-04-02 11:28
Platform
win7-20240221-en
Max time kernel
149s
Max time network
147s
Command Line
Signatures
Remcos
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\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-1-5-21-330940541-141609230-1670313778-1000\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 2456 wrote to memory of 2068 | N/A | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe |
| PID 2456 wrote to memory of 2068 | N/A | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe |
| PID 2456 wrote to memory of 2068 | N/A | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe |
| PID 2456 wrote to memory of 2068 | 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 |
| NL | 91.92.249.94:1998 | leetboy.dynuddns.net | tcp |
| NL | 91.92.249.94:1998 | leetboy.dynuddns.net | tcp |
| NL | 91.92.249.94:1998 | leetboy.dynuddns.net | tcp |
| NL | 91.92.249.94:1998 | leetboy.dynuddns.net | tcp |
| NL | 91.92.249.94:1998 | leetboy.dynuddns.net | tcp |
| NL | 91.92.249.94:1998 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| NL | 91.92.249.94:1998 | leetboy.dynuddns.net | tcp |
Files
\Users\Admin\AppData\Roaming\microsofts\svcs.exe
| MD5 | 06f5b8dffc6c138828adbc7f29cfc7f0 |
| SHA1 | b59ef5d613a1e49c7034c3ee05780ce054ca0054 |
| SHA256 | 03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7 |
| SHA512 | e706a0b3b1981cac8ddcf81482b306b4538fbfbf5c332f2b484f8c503b66d73cd09ffaab0515ecb2063d1e4a27dc30a662cc0be4f5287d2982cfbb47c7dad893 |
C:\ProgramData\logsa\logs.dat
| MD5 | 1f592d7e4703ae3ce3c8413ae660e521 |
| SHA1 | fcd6e16498dc6d014729f762b12d4fb56480066d |
| SHA256 | c346e636156a93aa5a23a1d123e04542f79181112af42412d843d4eaffcfd9d1 |
| SHA512 | 55f65737deeb84bfb095a225f58064340fe69c4e37c24b391e81890d775f5a3fd2b40cdaad013ad618ec46096e6cbb20f66eacc38f7787142ab7370a483a96eb |
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-02 11:26
Reported
2024-04-02 11:28
Platform
win10v2004-20240226-en
Max time kernel
150s
Max time network
155s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\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-1-5-21-557049126-2506969350-2798870634-1000\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-1-5-21-557049126-2506969350-2798870634-1000\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 3076 wrote to memory of 3608 | N/A | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe |
| PID 3076 wrote to memory of 3608 | N/A | C:\Users\Admin\AppData\Local\Temp\03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe | C:\Users\Admin\AppData\Roaming\microsofts\svcs.exe |
| PID 3076 wrote to memory of 3608 | 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 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| NL | 91.92.249.94:1998 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| NL | 91.92.249.94:1998 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.66.18.2.in-addr.arpa | udp |
| NL | 91.92.249.94:1998 | leetboy.dynuddns.net | tcp |
| NL | 91.92.249.94:1998 | leetboy.dynuddns.net | tcp |
| NL | 91.92.249.94:1998 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| NL | 91.92.249.94:1998 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| NL | 91.92.249.94:1998 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | 123.10.44.20.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 | bc02f79fdf666d7ef3a6ddd526dbd7f5 |
| SHA1 | 42274a3bf8ac2cdbb62afd8b974d785414680cef |
| SHA256 | bac6e759d4b7e469c2c1a2b93cec4ab1393de1622585b448425dc9a5761f4993 |
| SHA512 | b8c4a75d54bd7966d3e525300342a4dce6c1e954d19d9c4867a559b8c923a3e38b637c73643685cc8398f06a24cb159845473367932d532914bedf1a77e5754d |