Analysis Overview
SHA256
afbe39d83050f54ca4cdaca312b52475f70389dd7f906653c5869f4db914c85a
Threat Level: Known bad
The file AsyncClient.exe was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Async RAT payload
Asyncrat family
Async RAT payload
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Unsigned PE
Enumerates physical storage devices
Creates scheduled task(s)
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Checks SCSI registry key(s)
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SendNotifyMessage
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-04-26 18:44
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
2023-04-26 18:44
Reported
2023-04-26 18:46
Platform
win7-20230220-en
Max time kernel
85s
Max time network
86s
Command Line
Signatures
AsyncRat
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchost.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\AsyncClient.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: 33 | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe
"C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp1D61.tmp.bat""
C:\Windows\SysWOW64\timeout.exe
timeout 3
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x488
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 181.ip.ply.gg | udp |
| US | 209.25.141.181:5050 | 181.ip.ply.gg | tcp |
| US | 209.25.141.181:5050 | 181.ip.ply.gg | tcp |
| US | 209.25.141.181:5050 | 181.ip.ply.gg | tcp |
Files
memory/2036-54-0x00000000010A0000-0x00000000010B2000-memory.dmp
memory/2036-55-0x0000000004D40000-0x0000000004D80000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp1D61.tmp.bat
| MD5 | 70369098f2268d004590a27073230e35 |
| SHA1 | 396210dc2268c06145aa1b29ecb61e43d18284b7 |
| SHA256 | b8d8d7a0bdf51fd783955f27a13ab994d20a9a3f1910a0dd7b61b27312060ccd |
| SHA512 | 071484875da067cde8f6879ff2d073a6347e2365e400b07771a4bf1672d9f3fe9f5b459aeeb790b1a26336fd84679b122487769d449115bfc932e022bfdbbf74 |
C:\Users\Admin\AppData\Local\Temp\tmp1D61.tmp.bat
| MD5 | 70369098f2268d004590a27073230e35 |
| SHA1 | 396210dc2268c06145aa1b29ecb61e43d18284b7 |
| SHA256 | b8d8d7a0bdf51fd783955f27a13ab994d20a9a3f1910a0dd7b61b27312060ccd |
| SHA512 | 071484875da067cde8f6879ff2d073a6347e2365e400b07771a4bf1672d9f3fe9f5b459aeeb790b1a26336fd84679b122487769d449115bfc932e022bfdbbf74 |
C:\Users\Admin\AppData\Roaming\svchost.exe
| MD5 | dcfb73959b8a575a7f5765bb0723a861 |
| SHA1 | b9757ac469bc18714e7c138094bd461707ff80c5 |
| SHA256 | afbe39d83050f54ca4cdaca312b52475f70389dd7f906653c5869f4db914c85a |
| SHA512 | c2f4a52227ae66263266c41d7cd5823c0ded669fddec194b1c5f47d8be95851dd359da887a60f9d8a7e7a63f17f4e95e24e4ea7a1ee087925a7bbdad04f43090 |
\Users\Admin\AppData\Roaming\svchost.exe
| MD5 | dcfb73959b8a575a7f5765bb0723a861 |
| SHA1 | b9757ac469bc18714e7c138094bd461707ff80c5 |
| SHA256 | afbe39d83050f54ca4cdaca312b52475f70389dd7f906653c5869f4db914c85a |
| SHA512 | c2f4a52227ae66263266c41d7cd5823c0ded669fddec194b1c5f47d8be95851dd359da887a60f9d8a7e7a63f17f4e95e24e4ea7a1ee087925a7bbdad04f43090 |
C:\Users\Admin\AppData\Roaming\svchost.exe
| MD5 | dcfb73959b8a575a7f5765bb0723a861 |
| SHA1 | b9757ac469bc18714e7c138094bd461707ff80c5 |
| SHA256 | afbe39d83050f54ca4cdaca312b52475f70389dd7f906653c5869f4db914c85a |
| SHA512 | c2f4a52227ae66263266c41d7cd5823c0ded669fddec194b1c5f47d8be95851dd359da887a60f9d8a7e7a63f17f4e95e24e4ea7a1ee087925a7bbdad04f43090 |
memory/1388-68-0x00000000003D0000-0x00000000003E2000-memory.dmp
memory/1388-69-0x0000000004D70000-0x0000000004DB0000-memory.dmp
memory/1388-70-0x0000000004D70000-0x0000000004DB0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-04-26 18:44
Reported
2023-04-26 18:47
Platform
win10v2004-20230220-en
Max time kernel
150s
Max time network
149s
Command Line
Signatures
AsyncRat
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
Enumerates physical storage devices
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName | C:\Windows\system32\taskmgr.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 | C:\Windows\system32\taskmgr.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A | C:\Windows\system32\taskmgr.exe | N/A |
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 behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\taskmgr.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeCreateGlobalPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe
"C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp886E.tmp.bat""
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
C:\Windows\SysWOW64\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
Network
| Country | Destination | Domain | Proto |
| US | 209.197.3.8:80 | tcp | |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 181.ip.ply.gg | udp |
| US | 209.25.141.181:5050 | 181.ip.ply.gg | tcp |
| US | 52.152.108.96:443 | tcp | |
| US | 209.25.141.181:5050 | 181.ip.ply.gg | tcp |
| FR | 40.79.141.154:443 | tcp | |
| US | 13.107.4.50:80 | tcp | |
| NL | 173.223.113.164:443 | tcp | |
| NL | 173.223.113.131:80 | tcp | |
| US | 204.79.197.203:80 | api.msn.com | tcp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.36.159.162.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 181.ip.ply.gg | udp |
| US | 209.25.141.181:5050 | 181.ip.ply.gg | tcp |
| US | 209.197.3.8:80 | tcp | |
| US | 8.8.8.8:53 | 254.159.241.8.in-addr.arpa | udp |
| US | 209.25.141.181:5050 | 181.ip.ply.gg | tcp |
| US | 209.25.141.181:5050 | 181.ip.ply.gg | tcp |
| US | 209.25.141.181:5050 | 181.ip.ply.gg | tcp |
Files
memory/1504-133-0x0000000000B30000-0x0000000000B42000-memory.dmp
memory/1504-134-0x00000000055C0000-0x00000000055D0000-memory.dmp
memory/1504-135-0x00000000055D0000-0x000000000566C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp886E.tmp.bat
| MD5 | 55d99e37d985f57a6b617a061662d995 |
| SHA1 | a7830d44aed87d273b3fb402af4f5710d7bbb431 |
| SHA256 | 2b1052390765720d932ea5c92a47cfe8d194e5c9681928e178299bee0848980e |
| SHA512 | bb017e06a706947f013fd3c21426e87846affdc999382919aac73b8b22f7fdf4c3e55e7ac6181e85001938fe70972b501b8ca5aa3ffe59078efb629359a479d1 |
C:\Users\Admin\AppData\Roaming\svchost.exe
| MD5 | dcfb73959b8a575a7f5765bb0723a861 |
| SHA1 | b9757ac469bc18714e7c138094bd461707ff80c5 |
| SHA256 | afbe39d83050f54ca4cdaca312b52475f70389dd7f906653c5869f4db914c85a |
| SHA512 | c2f4a52227ae66263266c41d7cd5823c0ded669fddec194b1c5f47d8be95851dd359da887a60f9d8a7e7a63f17f4e95e24e4ea7a1ee087925a7bbdad04f43090 |
C:\Users\Admin\AppData\Roaming\svchost.exe
| MD5 | dcfb73959b8a575a7f5765bb0723a861 |
| SHA1 | b9757ac469bc18714e7c138094bd461707ff80c5 |
| SHA256 | afbe39d83050f54ca4cdaca312b52475f70389dd7f906653c5869f4db914c85a |
| SHA512 | c2f4a52227ae66263266c41d7cd5823c0ded669fddec194b1c5f47d8be95851dd359da887a60f9d8a7e7a63f17f4e95e24e4ea7a1ee087925a7bbdad04f43090 |
memory/2344-144-0x0000015D8CE90000-0x0000015D8CE91000-memory.dmp
memory/2344-145-0x0000015D8CE90000-0x0000015D8CE91000-memory.dmp
memory/2344-146-0x0000015D8CE90000-0x0000015D8CE91000-memory.dmp
memory/2344-150-0x0000015D8CE90000-0x0000015D8CE91000-memory.dmp
memory/2344-151-0x0000015D8CE90000-0x0000015D8CE91000-memory.dmp
memory/2344-152-0x0000015D8CE90000-0x0000015D8CE91000-memory.dmp
memory/2344-153-0x0000015D8CE90000-0x0000015D8CE91000-memory.dmp
memory/2344-154-0x0000015D8CE90000-0x0000015D8CE91000-memory.dmp
memory/2344-156-0x0000015D8CE90000-0x0000015D8CE91000-memory.dmp
memory/2344-155-0x0000015D8CE90000-0x0000015D8CE91000-memory.dmp