Analysis Overview
SHA256
c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3
Threat Level: Known bad
The file Testing FR.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
Enumerates physical storage devices
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Uses Task Scheduler COM API
Delays execution with timeout.exe
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-03-21 02:40
Signatures
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Asyncrat family
Analysis: behavioral1
Detonation Overview
Submitted
2023-03-21 02:40
Reported
2023-03-21 02:42
Platform
win7-20230220-en
Max time kernel
133s
Max time network
146s
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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft Services.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
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Testing FR.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Testing FR.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Microsoft Services.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\Testing FR.exe
"C:\Users\Admin\AppData\Local\Temp\Testing FR.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Microsoft Services" /tr '"C:\Users\Admin\AppData\Roaming\Microsoft Services.exe"' & exit
C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp1BDB.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "Microsoft Services" /tr '"C:\Users\Admin\AppData\Roaming\Microsoft Services.exe"'
C:\Users\Admin\AppData\Roaming\Microsoft Services.exe
"C:\Users\Admin\AppData\Roaming\Microsoft Services.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 127.0.0.1:8809 | tcp | |
| N/A | 127.0.0.1:8809 | tcp | |
| US | 8.8.8.8:53 | thebest39393.ddns.net | udp |
| US | 99.114.251.177:8809 | thebest39393.ddns.net | tcp |
| N/A | 127.0.0.1:8809 | tcp | |
| N/A | 127.0.0.1:8809 | tcp | |
| N/A | 127.0.0.1:8809 | tcp | |
| N/A | 127.0.0.1:8809 | tcp | |
| N/A | 127.0.0.1:8809 | tcp | |
| N/A | 127.0.0.1:8809 | tcp | |
| N/A | 127.0.0.1:8809 | tcp | |
| US | 8.8.8.8:53 | thebest39393.ddns.net | udp |
| US | 99.114.251.177:8809 | thebest39393.ddns.net | tcp |
| US | 99.114.251.177:8809 | thebest39393.ddns.net | tcp |
Files
memory/1388-54-0x0000000000AF0000-0x0000000000B02000-memory.dmp
memory/1388-55-0x000000001B1B0000-0x000000001B230000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp1BDB.tmp.bat
| MD5 | 4959e505a839493f0bbe8358195f0c72 |
| SHA1 | 79d8f3ddf4dcac2c13dc4d9798e517c56bcf0cf3 |
| SHA256 | f1a87a1dad274a575804bc2a9e56ea0595ac2f7c560e361ddd051c2cd15a2b98 |
| SHA512 | be6c46ff0a1cc07f2bf4a569495cfbd8788e5f0b2414cd0416e1a62ceae3d3391598cf5972aba144efd488595700a46b7c866c8ef70db2ab79bf920acda67e89 |
C:\Users\Admin\AppData\Local\Temp\tmp1BDB.tmp.bat
| MD5 | 4959e505a839493f0bbe8358195f0c72 |
| SHA1 | 79d8f3ddf4dcac2c13dc4d9798e517c56bcf0cf3 |
| SHA256 | f1a87a1dad274a575804bc2a9e56ea0595ac2f7c560e361ddd051c2cd15a2b98 |
| SHA512 | be6c46ff0a1cc07f2bf4a569495cfbd8788e5f0b2414cd0416e1a62ceae3d3391598cf5972aba144efd488595700a46b7c866c8ef70db2ab79bf920acda67e89 |
C:\Users\Admin\AppData\Roaming\Microsoft Services.exe
| MD5 | 0c2353b8b6923a16f523944d6514bb8f |
| SHA1 | d66baa60bcfbc057466b3ca0ef3076c5fd02210b |
| SHA256 | c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3 |
| SHA512 | 857a0dbf2cd41349d72df6a68ad4743bd1d0b2cbdf245be4e3abda10e0323678beb5d0b78ebd968db751a3de58b924e792f64cc6ca1e7b0f27b42869179c979d |
C:\Users\Admin\AppData\Roaming\Microsoft Services.exe
| MD5 | 0c2353b8b6923a16f523944d6514bb8f |
| SHA1 | d66baa60bcfbc057466b3ca0ef3076c5fd02210b |
| SHA256 | c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3 |
| SHA512 | 857a0dbf2cd41349d72df6a68ad4743bd1d0b2cbdf245be4e3abda10e0323678beb5d0b78ebd968db751a3de58b924e792f64cc6ca1e7b0f27b42869179c979d |
memory/1756-68-0x00000000002D0000-0x00000000002E2000-memory.dmp
memory/1756-69-0x000000001AF50000-0x000000001AFD0000-memory.dmp
memory/1756-70-0x000000001AF50000-0x000000001AFD0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-03-21 02:40
Reported
2023-03-21 02:42
Platform
win10v2004-20230220-en
Max time kernel
145s
Max time network
148s
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\Testing FR.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft Services.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\Testing FR.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Microsoft Services.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\Testing FR.exe
"C:\Users\Admin\AppData\Local\Temp\Testing FR.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Microsoft Services" /tr '"C:\Users\Admin\AppData\Roaming\Microsoft Services.exe"' & exit
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7823.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "Microsoft Services" /tr '"C:\Users\Admin\AppData\Roaming\Microsoft Services.exe"'
C:\Users\Admin\AppData\Roaming\Microsoft Services.exe
"C:\Users\Admin\AppData\Roaming\Microsoft Services.exe"
Network
| Country | Destination | Domain | Proto |
| US | 209.197.3.8:80 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.81.184.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | thebest39393.ddns.net | udp |
| US | 99.114.251.177:8809 | thebest39393.ddns.net | tcp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 52.152.108.96:443 | tcp | |
| US | 8.8.8.8:53 | 176.122.125.40.in-addr.arpa | udp |
| US | 99.114.251.177:8809 | thebest39393.ddns.net | tcp |
| NL | 52.178.17.3:443 | tcp | |
| US | 8.8.8.8:53 | 160.252.72.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 151.122.125.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.36.159.162.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 151.122.125.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.8.109.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:8809 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 8.8.8.8:53 | 254.138.241.8.in-addr.arpa | udp |
| NL | 173.223.113.164:443 | tcp | |
| US | 8.8.8.8:53 | thebest39393.ddns.net | udp |
| US | 99.114.251.177:8809 | thebest39393.ddns.net | tcp |
| US | 8.8.8.8:53 | 254.130.241.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | thebest39393.ddns.net | udp |
| US | 99.114.251.177:8809 | thebest39393.ddns.net | tcp |
| US | 99.114.251.177:8809 | thebest39393.ddns.net | tcp |
| N/A | 127.0.0.1:8809 | tcp |
Files
memory/4872-133-0x0000000000500000-0x0000000000512000-memory.dmp
memory/4872-134-0x000000001BD50000-0x000000001BD60000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp7823.tmp.bat
| MD5 | 457aeb2377c735737a952ade1c443d6a |
| SHA1 | 46e485ca27d035aeff795d756f2c31547aa83a4d |
| SHA256 | 4ea8c80ae215bc81d056d1185364d29c45bb86f58345dea823a0a26318457aa7 |
| SHA512 | 8b3f979e74fb47927bff8c51d29fca4eb9e93536a1315b578faadfcb149c36f4a277d7e959d842ab9d713ddb84119fefc41921e3c1c467ecb0b36edfd3794003 |
C:\Users\Admin\AppData\Roaming\Microsoft Services.exe
| MD5 | 0c2353b8b6923a16f523944d6514bb8f |
| SHA1 | d66baa60bcfbc057466b3ca0ef3076c5fd02210b |
| SHA256 | c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3 |
| SHA512 | 857a0dbf2cd41349d72df6a68ad4743bd1d0b2cbdf245be4e3abda10e0323678beb5d0b78ebd968db751a3de58b924e792f64cc6ca1e7b0f27b42869179c979d |
C:\Users\Admin\AppData\Roaming\Microsoft Services.exe
| MD5 | 0c2353b8b6923a16f523944d6514bb8f |
| SHA1 | d66baa60bcfbc057466b3ca0ef3076c5fd02210b |
| SHA256 | c69b81e6499b64d01ed7b231985f9061e8553309cbd64b00d1699e71d58fd4c3 |
| SHA512 | 857a0dbf2cd41349d72df6a68ad4743bd1d0b2cbdf245be4e3abda10e0323678beb5d0b78ebd968db751a3de58b924e792f64cc6ca1e7b0f27b42869179c979d |
memory/972-143-0x000000001B690000-0x000000001B6A0000-memory.dmp
memory/972-144-0x000000001B690000-0x000000001B6A0000-memory.dmp