Analysis Overview
SHA256
6148afd882ab17b41c7e5d92569d55426ef18bec0c45335529ca66c0ae19efdd
Threat Level: Known bad
The file UniAccChecker.exe was found to be: Known bad.
Malicious Activity Summary
Async RAT payload
Asyncrat family
AsyncRat
Async RAT payload
Checks computer location settings
Executes dropped EXE
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Uses Task Scheduler COM API
Delays execution with timeout.exe
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-22 19:31
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: behavioral2
Detonation Overview
Submitted
2024-01-22 19:31
Reported
2024-01-22 19:34
Platform
win10v2004-20231215-en
Max time kernel
150s
Max time network
151s
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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\UniAccChecker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.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\UniAccChecker.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\UniAccChecker.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\UniAccChecker.exe
"C:\Users\Admin\AppData\Local\Temp\UniAccChecker.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "GoogleChromeUpd" /tr '"C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.exe"' & exit
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp73F7.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "GoogleChromeUpd" /tr '"C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.exe"'
C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.exe
"C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 52.142.223.178:80 | tcp | |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 201.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| N/A | 127.0.0.1:3232 | tcp | |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.160.77.104.in-addr.arpa | udp |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| US | 8.8.8.8:53 | 16.234.44.23.in-addr.arpa | udp |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| US | 8.8.8.8:53 | 181.178.17.96.in-addr.arpa | udp |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| US | 8.8.8.8:53 | 6.173.189.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp |
Files
memory/2876-0-0x0000000000170000-0x0000000000186000-memory.dmp
memory/2876-1-0x00007FFB516C0000-0x00007FFB52181000-memory.dmp
memory/2876-2-0x000000001AF10000-0x000000001AF20000-memory.dmp
memory/2876-7-0x00007FFB70250000-0x00007FFB70445000-memory.dmp
memory/2876-8-0x00007FFB5CE60000-0x00007FFB5CE79000-memory.dmp
memory/2876-9-0x00007FFB516C0000-0x00007FFB52181000-memory.dmp
memory/2876-10-0x00007FFB70250000-0x00007FFB70445000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp73F7.tmp.bat
| MD5 | 376c91afa636a6996adf4a80085dabfa |
| SHA1 | 241892093c72e04faed83a30c7f3a32deb851762 |
| SHA256 | 7add53f8fa1a12b78c77da14970697b5b890f343d8947300eaa32d405ec660cc |
| SHA512 | fdc3aa72cc4fd3aae50c74337bc1705a59e155b339ffc5d20dc271bdfa37b1187592eef8f82a34878d82f23fc4b9b99abecfded5e574c8fa5b63e2f913ba81cb |
C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.exe
| MD5 | e40435c6df1a16aad70fcb8582228bc3 |
| SHA1 | 8d5a1a1213b6680cfe3cb59aa0383ae8a91d5141 |
| SHA256 | 6148afd882ab17b41c7e5d92569d55426ef18bec0c45335529ca66c0ae19efdd |
| SHA512 | f7e33a06735e0297c06d3875010bc065471ce44ff86466cdf36c7773f4c3b1e9aef96c00efbf162976f695e50f06e7729f995a63a9de6335e0dcb36e7a19da2b |
memory/3704-15-0x00007FFB51370000-0x00007FFB51E31000-memory.dmp
memory/3704-16-0x0000000002A00000-0x0000000002A10000-memory.dmp
memory/3704-17-0x00007FFB51370000-0x00007FFB51E31000-memory.dmp
memory/3704-18-0x0000000002A00000-0x0000000002A10000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-22 19:31
Reported
2024-01-22 19:33
Platform
win7-20231215-en
Max time kernel
150s
Max time network
125s
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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.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\UniAccChecker.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\UniAccChecker.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\UniAccChecker.exe
"C:\Users\Admin\AppData\Local\Temp\UniAccChecker.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "GoogleChromeUpd" /tr '"C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.exe"' & exit
C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp475C.tmp.bat""
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "GoogleChromeUpd" /tr '"C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.exe"'
C:\Windows\system32\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.exe
"C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp | |
| N/A | 127.0.0.1:3232 | tcp |
Files
memory/2252-0-0x0000000000E10000-0x0000000000E26000-memory.dmp
memory/2252-1-0x000007FEF5C40000-0x000007FEF662C000-memory.dmp
memory/2252-2-0x0000000000C80000-0x0000000000D00000-memory.dmp
memory/2252-3-0x00000000778F0000-0x0000000077A99000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp475C.tmp.bat
| MD5 | 45f66034fdf30f45adbdc385d5e27095 |
| SHA1 | b17a30d1ef671e2b505256497fa533e76c4ad2b2 |
| SHA256 | bc4645b12d1acd6d2e18536a1d933739635ecaf0fc5c2c7bec2d9d56c1d89948 |
| SHA512 | 777f05cfd73539cf12bb1b5c3a7ff660bd0254d15573e28b057dc48d8a901c82310474df4e0c0aa9212303fe9aeaa2a8153e06237b817d20e8758838fabe529f |
memory/2252-13-0x000007FEF5C40000-0x000007FEF662C000-memory.dmp
memory/2252-14-0x00000000778F0000-0x0000000077A99000-memory.dmp
C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.exe
| MD5 | e40435c6df1a16aad70fcb8582228bc3 |
| SHA1 | 8d5a1a1213b6680cfe3cb59aa0383ae8a91d5141 |
| SHA256 | 6148afd882ab17b41c7e5d92569d55426ef18bec0c45335529ca66c0ae19efdd |
| SHA512 | f7e33a06735e0297c06d3875010bc065471ce44ff86466cdf36c7773f4c3b1e9aef96c00efbf162976f695e50f06e7729f995a63a9de6335e0dcb36e7a19da2b |
memory/2316-18-0x00000000008F0000-0x0000000000906000-memory.dmp
memory/2316-19-0x000007FEF5250000-0x000007FEF5C3C000-memory.dmp
memory/2316-20-0x000000001B2A0000-0x000000001B320000-memory.dmp
memory/2316-21-0x00000000778F0000-0x0000000077A99000-memory.dmp
memory/2316-22-0x000007FEF5250000-0x000007FEF5C3C000-memory.dmp
memory/2316-23-0x000000001B2A0000-0x000000001B320000-memory.dmp
memory/2316-24-0x00000000778F0000-0x0000000077A99000-memory.dmp