Analysis Overview
SHA256
d17e143abae10ae5cd25c20e711365eb23b4c96cf0c03d09779faf8770d4c023
Threat Level: Known bad
The file Client.exe was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Asyncrat family
Async RAT payload
Async RAT payload
Checks computer location settings
Executes dropped EXE
Checks installed software on the system
Enumerates connected drives
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
Uses Task Scheduler COM API
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-17 00:59
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
2024-04-17 00:59
Reported
2024-04-17 01:02
Platform
win7-20240221-en
Max time kernel
150s
Max time network
152s
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\svchost.exe | N/A |
Checks installed software on the system
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\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\Client.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\Client.exe
"C:\Users\Admin\AppData\Local\Temp\Client.exe"
C:\Windows\System32\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\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp65C5.tmp.bat""
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
C:\Windows\system32\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
Network
| Country | Destination | Domain | Proto |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp | |
| US | 66.66.146.74:9511 | tcp |
Files
memory/2120-0-0x0000000000B10000-0x0000000000B28000-memory.dmp
memory/2120-1-0x000007FEF5940000-0x000007FEF632C000-memory.dmp
memory/2120-3-0x0000000002160000-0x00000000021E0000-memory.dmp
memory/2120-4-0x00000000772C0000-0x0000000077469000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp65C5.tmp.bat
| MD5 | b14f172724424e3b85947bac8ce55804 |
| SHA1 | 79835fefd1bde609cf47489329d7241becaccf2d |
| SHA256 | 2a4e94427f73d7e859c7ea793eedb7f0ee075b161c289bfdd321e7739933560b |
| SHA512 | 0f8360da64bd93d620150e3233c87e86fcc6fa29625e2ac64fc4d84de3678d639c8a08a12752ec18651280b1e8d9e82958f9375c662d2031b71f1b6030b45fdc |
memory/2120-14-0x000007FEF5940000-0x000007FEF632C000-memory.dmp
memory/2120-15-0x00000000772C0000-0x0000000077469000-memory.dmp
C:\Users\Admin\AppData\Roaming\svchost.exe
| MD5 | feb7c3f368154a08ad7e52261979c08e |
| SHA1 | 2131d762af7a5658ae4300082cbbfc61e5c42225 |
| SHA256 | d17e143abae10ae5cd25c20e711365eb23b4c96cf0c03d09779faf8770d4c023 |
| SHA512 | 2a2c5abe02366fbbc632032391573e0c674136148cfed6968a02b2318cbabbd2c0e5395c3cd3179aaa25670300b5a071842c4b31423c24b87e657fc4c1210734 |
memory/1648-19-0x0000000000FD0000-0x0000000000FE8000-memory.dmp
memory/1648-21-0x000007FEF4F50000-0x000007FEF593C000-memory.dmp
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
| MD5 | cf759e4c5f14fe3eec41b87ed756cea8 |
| SHA1 | c27c796bb3c2fac929359563676f4ba1ffada1f5 |
| SHA256 | c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761 |
| SHA512 | c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b |
memory/1648-22-0x000000001B310000-0x000000001B390000-memory.dmp
memory/1648-23-0x00000000772C0000-0x0000000077469000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
| MD5 | 29f65ba8e88c063813cc50a4ea544e93 |
| SHA1 | 05a7040d5c127e68c25d81cc51271ffb8bef3568 |
| SHA256 | 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184 |
| SHA512 | e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa |
C:\Users\Admin\AppData\Local\Temp\Tar8F0D.tmp
| MD5 | 435a9ac180383f9fa094131b173a2f7b |
| SHA1 | 76944ea657a9db94f9a4bef38f88c46ed4166983 |
| SHA256 | 67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34 |
| SHA512 | 1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a |
memory/1648-101-0x000007FEF4F50000-0x000007FEF593C000-memory.dmp
memory/1648-122-0x00000000772C0000-0x0000000077469000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-17 00:59
Reported
2024-04-17 01:02
Platform
win10v2004-20240412-en
Max time kernel
150s
Max time network
152s
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-1-5-21-3198953144-1466794930-246379610-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Client.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
Checks installed software on the system
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\D: | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\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\Client.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 |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\Client.exe
"C:\Users\Admin\AppData\Local\Temp\Client.exe"
C:\Windows\System32\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\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9182.tmp.bat""
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
C:\Windows\system32\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x50c 0x2fc
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 68.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 203.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 66.66.146.74:9511 | tcp | |
| US | 8.8.8.8:53 | 74.146.66.66.in-addr.arpa | udp |
| US | 66.66.146.74:9511 | tcp | |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 87.126.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 66.66.146.74:9511 | tcp | |
| US | 8.8.8.8:53 | 30.73.42.20.in-addr.arpa | udp |
Files
memory/3432-0-0x0000000000850000-0x0000000000868000-memory.dmp
memory/3432-2-0x00007FF815C70000-0x00007FF816731000-memory.dmp
memory/3432-3-0x000000001B3C0000-0x000000001B3D0000-memory.dmp
memory/3432-8-0x00007FF834650000-0x00007FF834845000-memory.dmp
memory/3432-9-0x00007FF815C70000-0x00007FF816731000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp9182.tmp.bat
| MD5 | 61ff64692be1857fee234f81bb4c7b7a |
| SHA1 | 1356848f3d5e2633020ad4827589cdf5281391df |
| SHA256 | 913790aa96af7ae95152558ad0639adb96bec82154518e43fc44e81f97b288e1 |
| SHA512 | b9ac5263e0c252c9dd2a45811d8329db331af507096379aba93ea4a87b98b18cc2f6bae4cc676235454cb718d8efa39cbd8fd5cbe2be442772e05a6437765b05 |
C:\Users\Admin\AppData\Roaming\svchost.exe
| MD5 | feb7c3f368154a08ad7e52261979c08e |
| SHA1 | 2131d762af7a5658ae4300082cbbfc61e5c42225 |
| SHA256 | d17e143abae10ae5cd25c20e711365eb23b4c96cf0c03d09779faf8770d4c023 |
| SHA512 | 2a2c5abe02366fbbc632032391573e0c674136148cfed6968a02b2318cbabbd2c0e5395c3cd3179aaa25670300b5a071842c4b31423c24b87e657fc4c1210734 |
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
| MD5 | cf759e4c5f14fe3eec41b87ed756cea8 |
| SHA1 | c27c796bb3c2fac929359563676f4ba1ffada1f5 |
| SHA256 | c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761 |
| SHA512 | c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b |
memory/2676-15-0x00007FF815C70000-0x00007FF816731000-memory.dmp
memory/2676-16-0x000000001D840000-0x000000001D8B6000-memory.dmp
memory/2676-17-0x000000001AFF0000-0x000000001AFFE000-memory.dmp
memory/2676-18-0x000000001C360000-0x000000001C37E000-memory.dmp
memory/2676-19-0x00007FF815C70000-0x00007FF816731000-memory.dmp