Analysis Overview
SHA256
9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a
Threat Level: Known bad
The file 9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a was found to be: Known bad.
Malicious Activity Summary
Asyncrat family
Async RAT payload
AsyncRat
Async RAT payload
Executes dropped EXE
Checks computer location settings
Unsigned PE
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Delays execution with timeout.exe
Scheduled Task/Job: Scheduled Task
Uses Task Scheduler COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-28 11:03
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: behavioral2
Detonation Overview
Submitted
2024-06-28 11:03
Reported
2024-06-28 11:06
Platform
win11-20240508-en
Max time kernel
127s
Max time network
145s
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\task.exe | N/A |
Enumerates physical storage devices
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\task.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\task.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe
"C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "task" /tr '"C:\Users\Admin\AppData\Roaming\task.exe"' & exit
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4A96.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "task" /tr '"C:\Users\Admin\AppData\Roaming\task.exe"'
C:\Users\Admin\AppData\Roaming\task.exe
"C:\Users\Admin\AppData\Roaming\task.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 91.92.246.193:4444 | tcp | |
| NL | 91.92.246.193:4444 | tcp | |
| NL | 91.92.246.193:4444 | tcp | |
| US | 52.111.229.43:443 | tcp | |
| NL | 91.92.246.193:4444 | tcp | |
| NL | 91.92.246.193:4444 | tcp | |
| NL | 91.92.246.193:4444 | tcp |
Files
memory/1976-0-0x00007FFB0A173000-0x00007FFB0A175000-memory.dmp
memory/1976-1-0x00000000008B0000-0x00000000008C8000-memory.dmp
memory/1976-3-0x00007FFB0A170000-0x00007FFB0AC32000-memory.dmp
memory/1976-4-0x00007FFB0A170000-0x00007FFB0AC32000-memory.dmp
memory/1976-9-0x00007FFB0A170000-0x00007FFB0AC32000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp4A96.tmp.bat
| MD5 | 1ef581595663e0e02157647a80f3c6aa |
| SHA1 | 9d12d9c72c910e609fe214a9e126dfc4dfdffaea |
| SHA256 | ea66fa1c6c1037499dfebc4154b1442aa149972e3a33d52849d110c675dc0847 |
| SHA512 | 216cc4ac2210fc9598da72d90b6a5133507eb4907ce283f58d8b0b8cb4ceb095e01cabef3247d3d09ef85a3fa4309e7a12707c85d788bab4b89a461de49313f5 |
C:\Users\Admin\AppData\Roaming\task.exe
| MD5 | 76e8d35fe35dce2fb65d0e2fb1be067c |
| SHA1 | 543ae7d1f3288b6439f50a7a6c50dacf02d13af4 |
| SHA256 | 9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a |
| SHA512 | d1a406fb8862577e0ba9ed1404b7568fcf519e8a39bc966e9ea58922bb2eb34bdd7275f9f3c6688b77d3604427a21973484d0b15a9cb4c992f61b17a2d775f02 |
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
| MD5 | cf759e4c5f14fe3eec41b87ed756cea8 |
| SHA1 | c27c796bb3c2fac929359563676f4ba1ffada1f5 |
| SHA256 | c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761 |
| SHA512 | c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-28 11:03
Reported
2024-06-28 11:06
Platform
win10v2004-20240508-en
Max time kernel
127s
Max time network
145s
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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\task.exe | N/A |
Enumerates physical storage devices
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\task.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\task.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe
"C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "task" /tr '"C:\Users\Admin\AppData\Roaming\task.exe"' & exit
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5870.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "task" /tr '"C:\Users\Admin\AppData\Roaming\task.exe"'
C:\Users\Admin\AppData\Roaming\task.exe
"C:\Users\Admin\AppData\Roaming\task.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.177.190.20.in-addr.arpa | udp |
| NL | 91.92.246.193:4444 | tcp | |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| NL | 91.92.246.193:4444 | tcp | |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| NL | 91.92.246.193:4444 | tcp | |
| US | 8.8.8.8:53 | 203.107.17.2.in-addr.arpa | udp |
| NL | 91.92.246.193:4444 | tcp | |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| NL | 91.92.246.193:4444 | tcp | |
| NL | 91.92.246.193:4444 | tcp |
Files
memory/4216-1-0x0000000000710000-0x0000000000728000-memory.dmp
memory/4216-0-0x00007FFAFCB13000-0x00007FFAFCB15000-memory.dmp
memory/4216-3-0x00007FFAFCB10000-0x00007FFAFD5D1000-memory.dmp
memory/4216-8-0x00007FFAFCB10000-0x00007FFAFD5D1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp5870.tmp.bat
| MD5 | 513ef52106e0c31002ebde81e76c7eab |
| SHA1 | 6d87673d2ec4be8067e991651ebd22d250c104c4 |
| SHA256 | 57047ffcf504c71df2199403b1c074f1e6c32001b7cf8fe1cab3b45e963b2204 |
| SHA512 | ba16030a52ef8369c4309736b7d7d3ef92e65fc3787537e4b938e2b5d179982b653f348975d463e2f031ebc8e64186ece97409e2a89db9d1847ab367a7747cf8 |
C:\Users\Admin\AppData\Roaming\task.exe
| MD5 | 76e8d35fe35dce2fb65d0e2fb1be067c |
| SHA1 | 543ae7d1f3288b6439f50a7a6c50dacf02d13af4 |
| SHA256 | 9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a |
| SHA512 | d1a406fb8862577e0ba9ed1404b7568fcf519e8a39bc966e9ea58922bb2eb34bdd7275f9f3c6688b77d3604427a21973484d0b15a9cb4c992f61b17a2d775f02 |
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
| MD5 | cf759e4c5f14fe3eec41b87ed756cea8 |
| SHA1 | c27c796bb3c2fac929359563676f4ba1ffada1f5 |
| SHA256 | c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761 |
| SHA512 | c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b |