Analysis Overview
SHA256
689d3736122823defa550657e98157f7c57646369df7081cbc8efb245d8a0a06
Threat Level: Known bad
The file 873D9DB7925A4EC75BFECF636D0EF454.exe was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Async RAT payload
Asyncrat family
Async RAT payload
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Unsigned PE
Enumerates physical storage devices
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-01 18:31
Signatures
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Asyncrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-01 18:31
Reported
2024-03-01 18:33
Platform
win7-20240221-en
Max time kernel
122s
Max time network
171s
Command Line
Signatures
AsyncRat
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svhost.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\873D9DB7925A4EC75BFECF636D0EF454.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\873D9DB7925A4EC75BFECF636D0EF454.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\873D9DB7925A4EC75BFECF636D0EF454.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\svhost.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\873D9DB7925A4EC75BFECF636D0EF454.exe
"C:\Users\Admin\AppData\Local\Temp\873D9DB7925A4EC75BFECF636D0EF454.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svhost" /tr '"C:\Users\Admin\AppData\Roaming\svhost.exe"' & exit
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpB5D7.tmp.bat""
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svhost" /tr '"C:\Users\Admin\AppData\Roaming\svhost.exe"'
C:\Windows\SysWOW64\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\svhost.exe
"C:\Users\Admin\AppData\Roaming\svhost.exe"
Network
| Country | Destination | Domain | Proto |
| TR | 2.58.85.145:8808 | tcp |
Files
memory/1920-0-0x0000000001040000-0x0000000001058000-memory.dmp
memory/1920-1-0x0000000074EA0000-0x000000007558E000-memory.dmp
memory/1920-2-0x0000000000610000-0x0000000000650000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpB5D7.tmp.bat
| MD5 | 956d5b8c0359c39874ed5c93efe4b93b |
| SHA1 | 0489f7b5eb5a1a4008bce825fbed183760c86537 |
| SHA256 | dad2fdbe55a92859a7841f23752193e45ce1295aa130f1eaf44e3c7e27cc2cf3 |
| SHA512 | 08b746b705aeb3f48e6c17ce26478d2227514965210a7e1710f2529740ef4ef5d07f3a1044275363418042884838e8fdd41183dd4bcb717028f7a1c5fef3b691 |
memory/1920-11-0x0000000074EA0000-0x000000007558E000-memory.dmp
C:\Users\Admin\AppData\Roaming\svhost.exe
| MD5 | 873d9db7925a4ec75bfecf636d0ef454 |
| SHA1 | aa3f6724934db998d963cd18d2b358a62dfcdbbc |
| SHA256 | 689d3736122823defa550657e98157f7c57646369df7081cbc8efb245d8a0a06 |
| SHA512 | 00570e3cab520d34db457b50a4f2be0604baa62e9f95a28d1d7e36127064954199c95ad90d9a49ec3e06db04a1b49c6e3cdeef2ddbc20b7be457edf313e3d616 |
memory/2804-16-0x0000000000B20000-0x0000000000B38000-memory.dmp
memory/2804-17-0x0000000074E50000-0x000000007553E000-memory.dmp
memory/2804-18-0x0000000004B60000-0x0000000004BA0000-memory.dmp
memory/2804-36-0x0000000074E50000-0x000000007553E000-memory.dmp
memory/2804-37-0x0000000004B60000-0x0000000004BA0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-01 18:31
Reported
2024-03-01 18:34
Platform
win10v2004-20240226-en
Max time kernel
139s
Max time network
167s
Command Line
Signatures
AsyncRat
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\873D9DB7925A4EC75BFECF636D0EF454.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svhost.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\873D9DB7925A4EC75BFECF636D0EF454.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\svhost.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\873D9DB7925A4EC75BFECF636D0EF454.exe
"C:\Users\Admin\AppData\Local\Temp\873D9DB7925A4EC75BFECF636D0EF454.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svhost" /tr '"C:\Users\Admin\AppData\Roaming\svhost.exe"' & exit
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC043.tmp.bat""
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svhost" /tr '"C:\Users\Admin\AppData\Roaming\svhost.exe"'
C:\Windows\SysWOW64\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\svhost.exe
"C:\Users\Admin\AppData\Roaming\svhost.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 189.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| TR | 2.58.85.145:6004 | tcp | |
| US | 8.8.8.8:53 | 145.85.58.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.179.89.13.in-addr.arpa | udp |
Files
memory/460-0-0x0000000075320000-0x0000000075AD0000-memory.dmp
memory/460-1-0x0000000000CD0000-0x0000000000CE8000-memory.dmp
memory/460-2-0x00000000057D0000-0x00000000057E0000-memory.dmp
memory/460-3-0x0000000005880000-0x000000000591C000-memory.dmp
memory/460-8-0x0000000075320000-0x0000000075AD0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpC043.tmp.bat
| MD5 | 9ad37ebb44ffbb56c01934fbfebd073b |
| SHA1 | e895a634c897ace6cd5d8f1315a2ea2bbb98ff32 |
| SHA256 | 630644ad287fc01e4d432b7b379aefc9f90da37c7b3bb10a8eb7e3f99913f970 |
| SHA512 | 4cbaaaa9615d66a0e1bd936fb67d19b6e376d82e4962a4a04c4363a9d0435324015aff252c1bc30cbd464cff25c2d7b64711dea835a23110f68b1318096d3938 |
C:\Users\Admin\AppData\Roaming\svhost.exe
| MD5 | 873d9db7925a4ec75bfecf636d0ef454 |
| SHA1 | aa3f6724934db998d963cd18d2b358a62dfcdbbc |
| SHA256 | 689d3736122823defa550657e98157f7c57646369df7081cbc8efb245d8a0a06 |
| SHA512 | 00570e3cab520d34db457b50a4f2be0604baa62e9f95a28d1d7e36127064954199c95ad90d9a49ec3e06db04a1b49c6e3cdeef2ddbc20b7be457edf313e3d616 |
memory/864-13-0x0000000075270000-0x0000000075A20000-memory.dmp
memory/864-14-0x00000000056C0000-0x00000000056D0000-memory.dmp
memory/864-15-0x0000000006000000-0x00000000065A4000-memory.dmp
memory/864-16-0x0000000005A50000-0x0000000005AB6000-memory.dmp
memory/864-17-0x0000000075270000-0x0000000075A20000-memory.dmp
memory/864-18-0x00000000056C0000-0x00000000056D0000-memory.dmp