Analysis Overview
SHA256
17d18a7a41119c12455a644fefca70b4504db83e0122d6dc2652f46f98de8992
Threat Level: Known bad
The file 6a9957dd2a19a1bf4af05ca7be1694de.exe was found to be: Known bad.
Malicious Activity Summary
Remcos
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-04 05:35
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-04 05:35
Reported
2023-12-04 05:37
Platform
win7-20231023-en
Max time kernel
150s
Max time network
151s
Command Line
Signatures
Remcos
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\ProgramData\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\ProgramData\Remcos\remcos.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe | N/A |
| N/A | N/A | C:\ProgramData\Remcos\remcos.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-NT0JNG = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" | C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-NT0JNG = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" | C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-NT0JNG = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" | C:\ProgramData\Remcos\remcos.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-NT0JNG = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" | C:\ProgramData\Remcos\remcos.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2888 set thread context of 2820 | N/A | C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe | C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe |
| PID 2668 set thread context of 2560 | N/A | C:\ProgramData\Remcos\remcos.exe | C:\ProgramData\Remcos\remcos.exe |
Enumerates physical storage devices
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe | N/A |
| N/A | N/A | C:\ProgramData\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\ProgramData\Remcos\remcos.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe
"C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe"
C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe
"C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe"
C:\ProgramData\Remcos\remcos.exe
"C:\ProgramData\Remcos\remcos.exe"
C:\ProgramData\Remcos\remcos.exe
"C:\ProgramData\Remcos\remcos.exe"
C:\ProgramData\Remcos\remcos.exe
"C:\ProgramData\Remcos\remcos.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 45.153.184.199:80 | 45.153.184.199 | tcp |
| NL | 185.157.162.241:1303 | tcp | |
| US | 8.8.8.8:53 | geoplugin.net | udp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
Files
C:\Users\Public\vlkkqasyibgdtlsvhzbnyahry.bin
| MD5 | 9ff228d096ee65bf9d214b5793bde076 |
| SHA1 | 1d388f9f9c9d1fe1db1f79948b959625a9ac33c1 |
| SHA256 | 3f7f8b96bd1f1bf7d5ef5bd8c0fe2f6de28295be2514243fd903bab2165697cc |
| SHA512 | ed6a9c7d3e38b621903bd269b6b64825db5e9224fb6e9972615b7db30c2b65959e0014073bc1335e6bdb5c68bbec3e4ab5d942c4217aa83033ff4bba6a6db62d |
memory/2888-5-0x0000000000810000-0x0000000000813000-memory.dmp
memory/2820-6-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2820-8-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2820-9-0x0000000000400000-0x0000000000482000-memory.dmp
\ProgramData\Remcos\remcos.exe
| MD5 | 6a9957dd2a19a1bf4af05ca7be1694de |
| SHA1 | 72c945a8acf762df42d5d5ae1a281a2e5c3d9196 |
| SHA256 | 17d18a7a41119c12455a644fefca70b4504db83e0122d6dc2652f46f98de8992 |
| SHA512 | 42076c0d76914a89e2785eddef8d5049ab8fd958cc363279e0fbb18b819684157d212c2f922502fa6a7e10471eda806b257e37b4712f389cb56eac94c69d5113 |
C:\ProgramData\Remcos\remcos.exe
| MD5 | 6a9957dd2a19a1bf4af05ca7be1694de |
| SHA1 | 72c945a8acf762df42d5d5ae1a281a2e5c3d9196 |
| SHA256 | 17d18a7a41119c12455a644fefca70b4504db83e0122d6dc2652f46f98de8992 |
| SHA512 | 42076c0d76914a89e2785eddef8d5049ab8fd958cc363279e0fbb18b819684157d212c2f922502fa6a7e10471eda806b257e37b4712f389cb56eac94c69d5113 |
memory/2820-16-0x0000000000400000-0x0000000000482000-memory.dmp
C:\ProgramData\Remcos\remcos.exe
| MD5 | 6a9957dd2a19a1bf4af05ca7be1694de |
| SHA1 | 72c945a8acf762df42d5d5ae1a281a2e5c3d9196 |
| SHA256 | 17d18a7a41119c12455a644fefca70b4504db83e0122d6dc2652f46f98de8992 |
| SHA512 | 42076c0d76914a89e2785eddef8d5049ab8fd958cc363279e0fbb18b819684157d212c2f922502fa6a7e10471eda806b257e37b4712f389cb56eac94c69d5113 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\BOB1G6ZJ\encrypt[1].bin
| MD5 | 9ff228d096ee65bf9d214b5793bde076 |
| SHA1 | 1d388f9f9c9d1fe1db1f79948b959625a9ac33c1 |
| SHA256 | 3f7f8b96bd1f1bf7d5ef5bd8c0fe2f6de28295be2514243fd903bab2165697cc |
| SHA512 | ed6a9c7d3e38b621903bd269b6b64825db5e9224fb6e9972615b7db30c2b65959e0014073bc1335e6bdb5c68bbec3e4ab5d942c4217aa83033ff4bba6a6db62d |
C:\Users\Public\vlkkqasyibgdtlsvhzbnyahry.bin
| MD5 | 9ff228d096ee65bf9d214b5793bde076 |
| SHA1 | 1d388f9f9c9d1fe1db1f79948b959625a9ac33c1 |
| SHA256 | 3f7f8b96bd1f1bf7d5ef5bd8c0fe2f6de28295be2514243fd903bab2165697cc |
| SHA512 | ed6a9c7d3e38b621903bd269b6b64825db5e9224fb6e9972615b7db30c2b65959e0014073bc1335e6bdb5c68bbec3e4ab5d942c4217aa83033ff4bba6a6db62d |
\ProgramData\Remcos\remcos.exe
| MD5 | 6a9957dd2a19a1bf4af05ca7be1694de |
| SHA1 | 72c945a8acf762df42d5d5ae1a281a2e5c3d9196 |
| SHA256 | 17d18a7a41119c12455a644fefca70b4504db83e0122d6dc2652f46f98de8992 |
| SHA512 | 42076c0d76914a89e2785eddef8d5049ab8fd958cc363279e0fbb18b819684157d212c2f922502fa6a7e10471eda806b257e37b4712f389cb56eac94c69d5113 |
C:\ProgramData\Remcos\remcos.exe
| MD5 | 6a9957dd2a19a1bf4af05ca7be1694de |
| SHA1 | 72c945a8acf762df42d5d5ae1a281a2e5c3d9196 |
| SHA256 | 17d18a7a41119c12455a644fefca70b4504db83e0122d6dc2652f46f98de8992 |
| SHA512 | 42076c0d76914a89e2785eddef8d5049ab8fd958cc363279e0fbb18b819684157d212c2f922502fa6a7e10471eda806b257e37b4712f389cb56eac94c69d5113 |
C:\ProgramData\Remcos\remcos.exe
| MD5 | 6a9957dd2a19a1bf4af05ca7be1694de |
| SHA1 | 72c945a8acf762df42d5d5ae1a281a2e5c3d9196 |
| SHA256 | 17d18a7a41119c12455a644fefca70b4504db83e0122d6dc2652f46f98de8992 |
| SHA512 | 42076c0d76914a89e2785eddef8d5049ab8fd958cc363279e0fbb18b819684157d212c2f922502fa6a7e10471eda806b257e37b4712f389cb56eac94c69d5113 |
memory/2560-27-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2560-29-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2560-28-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2560-30-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2560-31-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2560-32-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2560-33-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2560-36-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2560-37-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2560-38-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2560-39-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2560-40-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2560-41-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2560-42-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2560-43-0x0000000000400000-0x0000000000482000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-04 05:35
Reported
2023-12-04 05:37
Platform
win10v2004-20231127-en
Max time kernel
147s
Max time network
149s
Command Line
Signatures
Remcos
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2598572287-1024438387-935107970-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\ProgramData\Remcos\remcos.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-NT0JNG = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" | C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2598572287-1024438387-935107970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-NT0JNG = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" | C:\ProgramData\Remcos\remcos.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-NT0JNG = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" | C:\ProgramData\Remcos\remcos.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2598572287-1024438387-935107970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-NT0JNG = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" | C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4448 set thread context of 4348 | N/A | C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe | C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe |
| PID 4704 set thread context of 1560 | N/A | C:\ProgramData\Remcos\remcos.exe | C:\ProgramData\Remcos\remcos.exe |
Enumerates physical storage devices
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe | N/A |
| N/A | N/A | C:\ProgramData\Remcos\remcos.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe
"C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe"
C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe
"C:\Users\Admin\AppData\Local\Temp\6a9957dd2a19a1bf4af05ca7be1694de.exe"
C:\ProgramData\Remcos\remcos.exe
"C:\ProgramData\Remcos\remcos.exe"
C:\ProgramData\Remcos\remcos.exe
"C:\ProgramData\Remcos\remcos.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| NL | 45.153.184.199:80 | 45.153.184.199 | tcp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 199.184.153.45.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.1.85.104.in-addr.arpa | udp |
| NL | 185.157.162.241:1303 | tcp | |
| US | 8.8.8.8:53 | geoplugin.net | udp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
| US | 8.8.8.8:53 | 241.162.157.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.33.237.178.in-addr.arpa | udp |
| 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 | 17.143.109.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.254.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 252.15.104.51.in-addr.arpa | udp |
Files
C:\Users\Public\vlkkqasyibgdtlsvhzbnyahry.bin
| MD5 | 9ff228d096ee65bf9d214b5793bde076 |
| SHA1 | 1d388f9f9c9d1fe1db1f79948b959625a9ac33c1 |
| SHA256 | 3f7f8b96bd1f1bf7d5ef5bd8c0fe2f6de28295be2514243fd903bab2165697cc |
| SHA512 | ed6a9c7d3e38b621903bd269b6b64825db5e9224fb6e9972615b7db30c2b65959e0014073bc1335e6bdb5c68bbec3e4ab5d942c4217aa83033ff4bba6a6db62d |
memory/4448-5-0x0000000003720000-0x0000000003723000-memory.dmp
memory/4348-6-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4348-7-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4348-8-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4348-10-0x0000000000400000-0x0000000000482000-memory.dmp
C:\ProgramData\Remcos\remcos.exe
| MD5 | 6a9957dd2a19a1bf4af05ca7be1694de |
| SHA1 | 72c945a8acf762df42d5d5ae1a281a2e5c3d9196 |
| SHA256 | 17d18a7a41119c12455a644fefca70b4504db83e0122d6dc2652f46f98de8992 |
| SHA512 | 42076c0d76914a89e2785eddef8d5049ab8fd958cc363279e0fbb18b819684157d212c2f922502fa6a7e10471eda806b257e37b4712f389cb56eac94c69d5113 |
C:\ProgramData\Remcos\remcos.exe
| MD5 | 6a9957dd2a19a1bf4af05ca7be1694de |
| SHA1 | 72c945a8acf762df42d5d5ae1a281a2e5c3d9196 |
| SHA256 | 17d18a7a41119c12455a644fefca70b4504db83e0122d6dc2652f46f98de8992 |
| SHA512 | 42076c0d76914a89e2785eddef8d5049ab8fd958cc363279e0fbb18b819684157d212c2f922502fa6a7e10471eda806b257e37b4712f389cb56eac94c69d5113 |
C:\ProgramData\Remcos\remcos.exe
| MD5 | 6a9957dd2a19a1bf4af05ca7be1694de |
| SHA1 | 72c945a8acf762df42d5d5ae1a281a2e5c3d9196 |
| SHA256 | 17d18a7a41119c12455a644fefca70b4504db83e0122d6dc2652f46f98de8992 |
| SHA512 | 42076c0d76914a89e2785eddef8d5049ab8fd958cc363279e0fbb18b819684157d212c2f922502fa6a7e10471eda806b257e37b4712f389cb56eac94c69d5113 |
memory/4348-21-0x0000000000400000-0x0000000000482000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\JRPRPPGG\encrypt[1].bin
| MD5 | 9ff228d096ee65bf9d214b5793bde076 |
| SHA1 | 1d388f9f9c9d1fe1db1f79948b959625a9ac33c1 |
| SHA256 | 3f7f8b96bd1f1bf7d5ef5bd8c0fe2f6de28295be2514243fd903bab2165697cc |
| SHA512 | ed6a9c7d3e38b621903bd269b6b64825db5e9224fb6e9972615b7db30c2b65959e0014073bc1335e6bdb5c68bbec3e4ab5d942c4217aa83033ff4bba6a6db62d |
C:\Users\Public\vlkkqasyibgdtlsvhzbnyahry.bin
| MD5 | 9ff228d096ee65bf9d214b5793bde076 |
| SHA1 | 1d388f9f9c9d1fe1db1f79948b959625a9ac33c1 |
| SHA256 | 3f7f8b96bd1f1bf7d5ef5bd8c0fe2f6de28295be2514243fd903bab2165697cc |
| SHA512 | ed6a9c7d3e38b621903bd269b6b64825db5e9224fb6e9972615b7db30c2b65959e0014073bc1335e6bdb5c68bbec3e4ab5d942c4217aa83033ff4bba6a6db62d |
C:\ProgramData\Remcos\remcos.exe
| MD5 | 6a9957dd2a19a1bf4af05ca7be1694de |
| SHA1 | 72c945a8acf762df42d5d5ae1a281a2e5c3d9196 |
| SHA256 | 17d18a7a41119c12455a644fefca70b4504db83e0122d6dc2652f46f98de8992 |
| SHA512 | 42076c0d76914a89e2785eddef8d5049ab8fd958cc363279e0fbb18b819684157d212c2f922502fa6a7e10471eda806b257e37b4712f389cb56eac94c69d5113 |
memory/1560-28-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1560-29-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1560-30-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1560-31-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1560-32-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1560-33-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1560-34-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1560-37-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1560-38-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1560-39-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1560-40-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1560-41-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1560-42-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1560-43-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1560-44-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1560-45-0x0000000000400000-0x0000000000482000-memory.dmp