Analysis Overview
SHA256
fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362
Threat Level: Known bad
The file fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362 was found to be: Known bad.
Malicious Activity Summary
Imminent RAT
Executes dropped EXE
Checks computer location settings
Deletes itself
Loads dropped DLL
Drops desktop.ini file(s)
Suspicious use of SetThreadContext
Drops file in Windows directory
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
NTFS ADS
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-29 12:18
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-29 12:18
Reported
2022-10-29 17:37
Platform
win7-20220812-en
Max time kernel
149s
Max time network
45s
Command Line
Signatures
Imminent RAT
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\lexaos.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1280 set thread context of 1348 | N/A | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe |
Enumerates physical storage devices
NTFS ADS
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe:ZONE.identifier | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe
"C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe"
C:\Users\Admin\AppData\Roaming\lexaos.exe
"C:\Users\Admin\AppData\Roaming\lexaos.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > "C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe":ZONE.identifier & exit
C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe
"C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
Files
memory/1280-54-0x0000000075811000-0x0000000075813000-memory.dmp
memory/1280-55-0x0000000074110000-0x00000000746BB000-memory.dmp
\Users\Admin\AppData\Roaming\lexaos.exe
| MD5 | 5cf58cc20f968db529a4e71a929dcb7b |
| SHA1 | bca3943516c03a7940c6747d8791ab3d11976e6b |
| SHA256 | 45c2950628e3f6c194bfe76606c358b0dd0af9cbe9adb0c699f299fbca522856 |
| SHA512 | b9ac14c62733deafb61e5e50be9070bb93fc10feb7dd793f9121ed92471c542b490881efe783646c6b9bafa756306888a03fe052ecf53be6dba6c02013919c2c |
memory/1884-57-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\lexaos.exe
| MD5 | 5cf58cc20f968db529a4e71a929dcb7b |
| SHA1 | bca3943516c03a7940c6747d8791ab3d11976e6b |
| SHA256 | 45c2950628e3f6c194bfe76606c358b0dd0af9cbe9adb0c699f299fbca522856 |
| SHA512 | b9ac14c62733deafb61e5e50be9070bb93fc10feb7dd793f9121ed92471c542b490881efe783646c6b9bafa756306888a03fe052ecf53be6dba6c02013919c2c |
C:\Users\Admin\AppData\Roaming\lexaos.exe
| MD5 | 5cf58cc20f968db529a4e71a929dcb7b |
| SHA1 | bca3943516c03a7940c6747d8791ab3d11976e6b |
| SHA256 | 45c2950628e3f6c194bfe76606c358b0dd0af9cbe9adb0c699f299fbca522856 |
| SHA512 | b9ac14c62733deafb61e5e50be9070bb93fc10feb7dd793f9121ed92471c542b490881efe783646c6b9bafa756306888a03fe052ecf53be6dba6c02013919c2c |
memory/1124-60-0x0000000000000000-mapping.dmp
memory/1348-63-0x0000000000400000-0x000000000044A000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe
| MD5 | 75ed9790ee27e9d3fccee9c2ab3a413a |
| SHA1 | 65d94cde9b36063a61f0a90426e59a68f943d2cd |
| SHA256 | fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362 |
| SHA512 | 3baf355fdfd3462ec4778696b71437b6a3a5e8d55e9013fcad0c93b8de6f3bc393e905e709c1df9609cbb83a8f020900d84daa4befcc487aa1ce7d8581545844 |
memory/1348-64-0x0000000000400000-0x000000000044A000-memory.dmp
\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe
| MD5 | 75ed9790ee27e9d3fccee9c2ab3a413a |
| SHA1 | 65d94cde9b36063a61f0a90426e59a68f943d2cd |
| SHA256 | fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362 |
| SHA512 | 3baf355fdfd3462ec4778696b71437b6a3a5e8d55e9013fcad0c93b8de6f3bc393e905e709c1df9609cbb83a8f020900d84daa4befcc487aa1ce7d8581545844 |
memory/1348-66-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1348-68-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1348-70-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1348-72-0x0000000000444A2E-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe
| MD5 | 75ed9790ee27e9d3fccee9c2ab3a413a |
| SHA1 | 65d94cde9b36063a61f0a90426e59a68f943d2cd |
| SHA256 | fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362 |
| SHA512 | 3baf355fdfd3462ec4778696b71437b6a3a5e8d55e9013fcad0c93b8de6f3bc393e905e709c1df9609cbb83a8f020900d84daa4befcc487aa1ce7d8581545844 |
memory/1348-75-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1280-77-0x0000000074110000-0x00000000746BB000-memory.dmp
memory/1348-78-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1348-81-0x0000000073B60000-0x000000007410B000-memory.dmp
memory/1884-79-0x000007FEF35B0000-0x000007FEF3FD3000-memory.dmp
memory/1884-82-0x000007FEF2510000-0x000007FEF35A6000-memory.dmp
memory/1348-83-0x0000000073B60000-0x000000007410B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-29 12:18
Reported
2022-10-29 17:37
Platform
win10v2004-20220812-en
Max time kernel
152s
Max time network
156s
Command Line
Signatures
Imminent RAT
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\lexaos.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3524 set thread context of 1720 | N/A | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\assembly | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
Enumerates physical storage devices
NTFS ADS
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe:ZONE.identifier | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe
"C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe"
C:\Users\Admin\AppData\Roaming\lexaos.exe
"C:\Users\Admin\AppData\Roaming\lexaos.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > "C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe":ZONE.identifier & exit
C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe
"C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.238.20.126:80 | tcp | |
| US | 8.238.20.126:80 | tcp | |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.253.208.120:80 | tcp | |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.253.208.120:80 | tcp | |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | 176.122.125.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
| US | 8.8.8.8:53 | strike44rus.ddns.net | udp |
Files
memory/3524-132-0x00000000747D0000-0x0000000074D81000-memory.dmp
memory/3524-133-0x00000000747D0000-0x0000000074D81000-memory.dmp
memory/4984-134-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\lexaos.exe
| MD5 | 5cf58cc20f968db529a4e71a929dcb7b |
| SHA1 | bca3943516c03a7940c6747d8791ab3d11976e6b |
| SHA256 | 45c2950628e3f6c194bfe76606c358b0dd0af9cbe9adb0c699f299fbca522856 |
| SHA512 | b9ac14c62733deafb61e5e50be9070bb93fc10feb7dd793f9121ed92471c542b490881efe783646c6b9bafa756306888a03fe052ecf53be6dba6c02013919c2c |
C:\Users\Admin\AppData\Roaming\lexaos.exe
| MD5 | 5cf58cc20f968db529a4e71a929dcb7b |
| SHA1 | bca3943516c03a7940c6747d8791ab3d11976e6b |
| SHA256 | 45c2950628e3f6c194bfe76606c358b0dd0af9cbe9adb0c699f299fbca522856 |
| SHA512 | b9ac14c62733deafb61e5e50be9070bb93fc10feb7dd793f9121ed92471c542b490881efe783646c6b9bafa756306888a03fe052ecf53be6dba6c02013919c2c |
memory/5040-137-0x0000000000000000-mapping.dmp
memory/1720-138-0x0000000000000000-mapping.dmp
memory/1720-139-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1720-140-0x0000000000400000-0x000000000044A000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe
| MD5 | 75ed9790ee27e9d3fccee9c2ab3a413a |
| SHA1 | 65d94cde9b36063a61f0a90426e59a68f943d2cd |
| SHA256 | fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362 |
| SHA512 | 3baf355fdfd3462ec4778696b71437b6a3a5e8d55e9013fcad0c93b8de6f3bc393e905e709c1df9609cbb83a8f020900d84daa4befcc487aa1ce7d8581545844 |
memory/1720-141-0x0000000000400000-0x000000000044A000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe.log
| MD5 | cde6529abeea500fb852f29ba0da6115 |
| SHA1 | 45f2f48492417ae6a0eade8aaa808d3d1d760743 |
| SHA256 | d7f4964443470b6729865676d76f5f1f416da633033071c34ea5eb19cdea53b5 |
| SHA512 | c95fa7faf6a90f32060dba70f79c4d66c68d6eec587306fb98f36fc3ba5d377ebf9dabf47298b71db208fb10f7ccb4e0ed82236c8f26bcc746552588bbb38234 |
C:\Users\Admin\AppData\Local\Temp\fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362.exe
| MD5 | 75ed9790ee27e9d3fccee9c2ab3a413a |
| SHA1 | 65d94cde9b36063a61f0a90426e59a68f943d2cd |
| SHA256 | fc8c3adbe5d8951e7c078230ac179a27188edd0bd304b1713119dab42c6a8362 |
| SHA512 | 3baf355fdfd3462ec4778696b71437b6a3a5e8d55e9013fcad0c93b8de6f3bc393e905e709c1df9609cbb83a8f020900d84daa4befcc487aa1ce7d8581545844 |
memory/3524-146-0x00000000747D0000-0x0000000074D81000-memory.dmp
memory/1720-147-0x00000000747D0000-0x0000000074D81000-memory.dmp
memory/4984-148-0x00007FFB14250000-0x00007FFB14C86000-memory.dmp
memory/1720-149-0x00000000747D0000-0x0000000074D81000-memory.dmp