Analysis Overview
SHA256
d63fedd504eedde32ee1ce7f1d5503b3720e1263b719440436508aa6c4f3b1fa
Threat Level: Known bad
The file 9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138.zip was found to be: Known bad.
Malicious Activity Summary
Asyncrat family
Async RAT payload
AsyncRat
Async RAT payload
Loads dropped DLL
Executes dropped EXE
Checks computer location settings
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-03-21 14:31
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 14:31
Reported
2023-03-21 14:33
Platform
win7-20230220-en
Max time kernel
146s
Max time network
30s
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\Local\Temp\windows.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\9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\windows.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138.exe
"C:\Users\Admin\AppData\Local\Temp\9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "windows" /tr '"C:\Users\Admin\AppData\Local\Temp\windows.exe"' & exit
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp2897.tmp.bat""
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "windows" /tr '"C:\Users\Admin\AppData\Local\Temp\windows.exe"'
C:\Windows\SysWOW64\timeout.exe
timeout 3
C:\Users\Admin\AppData\Local\Temp\windows.exe
"C:\Users\Admin\AppData\Local\Temp\windows.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | jntrojan.ddns.net | udp |
| N/A | 127.0.0.1:6606 | tcp | |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:6606 | tcp | |
| N/A | 127.0.0.1:6606 | tcp | |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:6606 | tcp | |
| N/A | 127.0.0.1:6606 | tcp |
Files
memory/1760-54-0x0000000001190000-0x00000000011E4000-memory.dmp
memory/1760-55-0x0000000000C30000-0x0000000000C70000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp2897.tmp.bat
| MD5 | e8f52cec60c6a7a1325e955624099193 |
| SHA1 | 386f4778e674427fe9de89759eb3f5bcc21947f6 |
| SHA256 | 689e27e3f714280de322bd5585f81a7d50000c0f486baca154eacfd4f0aa8820 |
| SHA512 | 9beaac2f5c93524b82894fe7861358281ff4f4d5ac4cf69de32730d277ab819827fb588d66f8b884d4a7fff93b662ba098b67fb039d7381a7bdfec7114565c5b |
C:\Users\Admin\AppData\Local\Temp\tmp2897.tmp.bat
| MD5 | e8f52cec60c6a7a1325e955624099193 |
| SHA1 | 386f4778e674427fe9de89759eb3f5bcc21947f6 |
| SHA256 | 689e27e3f714280de322bd5585f81a7d50000c0f486baca154eacfd4f0aa8820 |
| SHA512 | 9beaac2f5c93524b82894fe7861358281ff4f4d5ac4cf69de32730d277ab819827fb588d66f8b884d4a7fff93b662ba098b67fb039d7381a7bdfec7114565c5b |
\Users\Admin\AppData\Local\Temp\windows.exe
| MD5 | 66b5dabec55deb65ac6ecdbb385c9181 |
| SHA1 | 8485dc1ecf501916e3850521e81112fccdfaa110 |
| SHA256 | 9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138 |
| SHA512 | 28ff7068f0d8c1d7e0de8a6129d64db7d566868dc93e9bb8ba4de737d11483f8dd52edc6f67799cdf3396109061835bce472a2123477bb9304f1ff902ffdffb8 |
C:\Users\Admin\AppData\Local\Temp\windows.exe
| MD5 | 66b5dabec55deb65ac6ecdbb385c9181 |
| SHA1 | 8485dc1ecf501916e3850521e81112fccdfaa110 |
| SHA256 | 9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138 |
| SHA512 | 28ff7068f0d8c1d7e0de8a6129d64db7d566868dc93e9bb8ba4de737d11483f8dd52edc6f67799cdf3396109061835bce472a2123477bb9304f1ff902ffdffb8 |
C:\Users\Admin\AppData\Local\Temp\windows.exe
| MD5 | 66b5dabec55deb65ac6ecdbb385c9181 |
| SHA1 | 8485dc1ecf501916e3850521e81112fccdfaa110 |
| SHA256 | 9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138 |
| SHA512 | 28ff7068f0d8c1d7e0de8a6129d64db7d566868dc93e9bb8ba4de737d11483f8dd52edc6f67799cdf3396109061835bce472a2123477bb9304f1ff902ffdffb8 |
memory/1920-68-0x0000000001130000-0x0000000001184000-memory.dmp
memory/1920-69-0x0000000000370000-0x00000000003B0000-memory.dmp
memory/1920-70-0x0000000000370000-0x00000000003B0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-03-21 14:31
Reported
2023-03-21 14:33
Platform
win10v2004-20230220-en
Max time kernel
147s
Max time network
153s
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\9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\windows.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
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\windows.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138.exe
"C:\Users\Admin\AppData\Local\Temp\9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "windows" /tr '"C:\Users\Admin\AppData\Local\Temp\windows.exe"' & exit
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpCF0D.tmp.bat""
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "windows" /tr '"C:\Users\Admin\AppData\Local\Temp\windows.exe"'
C:\Windows\SysWOW64\timeout.exe
timeout 3
C:\Users\Admin\AppData\Local\Temp\windows.exe
"C:\Users\Admin\AppData\Local\Temp\windows.exe"
Network
| Country | Destination | Domain | Proto |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 131.17.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.38.195.152.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.154.139.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 143.145.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 176.122.125.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | jntrojan.ddns.net | udp |
| US | 8.8.8.8:53 | jntrojan.ddns.net | udp |
| N/A | 127.0.0.1:6606 | tcp | |
| US | 8.8.8.8:53 | 202.74.101.95.in-addr.arpa | udp |
| N/A | 127.0.0.1:7707 | tcp | |
| US | 8.8.8.8:53 | 45.8.109.52.in-addr.arpa | udp |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 8.8.8.8:53 | 216.74.101.95.in-addr.arpa | udp |
| US | 8.8.8.8:53 | jntrojan.ddns.net | udp |
| US | 8.8.8.8:53 | 135.17.126.40.in-addr.arpa | udp |
| N/A | 127.0.0.1:6606 | tcp | |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 254.137.241.8.in-addr.arpa | udp |
| NL | 173.223.113.164:443 | tcp | |
| NL | 173.223.113.131:80 | tcp | |
| US | 204.79.197.203:80 | tcp | |
| US | 8.8.8.8:53 | jntrojan.ddns.net | udp |
| N/A | 127.0.0.1:6606 | tcp | |
| US | 8.8.8.8:53 | jntrojan.ddns.net | udp |
| N/A | 127.0.0.1:7707 | tcp | |
| US | 8.8.8.8:53 | jntrojan.ddns.net | udp |
| N/A | 127.0.0.1:6606 | tcp | |
| US | 8.8.8.8:53 | jntrojan.ddns.net | udp |
| US | 8.8.8.8:53 | jntrojan.ddns.net | udp |
| US | 8.8.8.8:53 | jntrojan.ddns.net | udp |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:7707 | tcp | |
| US | 8.8.8.8:53 | jntrojan.ddns.net | udp |
| N/A | 127.0.0.1:7707 | tcp |
Files
memory/3472-133-0x00000000008F0000-0x0000000000944000-memory.dmp
memory/3472-134-0x00000000052D0000-0x00000000052E0000-memory.dmp
memory/3472-135-0x00000000053E0000-0x000000000547C000-memory.dmp
memory/3472-136-0x00000000052D0000-0x00000000052E0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpCF0D.tmp.bat
| MD5 | cf040bb5d517261895df2158073d1186 |
| SHA1 | 29f571645efcf8c0d9a6aeb4003be155e14fbbf0 |
| SHA256 | 2d340771ba16433d9dffeb26d3aab4202a20938f787adcc4fd3d2aac09ddf58e |
| SHA512 | a4591a6c3e99a98411601f98d55fd8edd2225341837b488f8b96cc914fd5dd7e0e0ba3747740a2eb93c7b65eabfb0607dce4e788cae6ae22f3aba63d1f111327 |
C:\Users\Admin\AppData\Local\Temp\windows.exe
| MD5 | 66b5dabec55deb65ac6ecdbb385c9181 |
| SHA1 | 8485dc1ecf501916e3850521e81112fccdfaa110 |
| SHA256 | 9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138 |
| SHA512 | 28ff7068f0d8c1d7e0de8a6129d64db7d566868dc93e9bb8ba4de737d11483f8dd52edc6f67799cdf3396109061835bce472a2123477bb9304f1ff902ffdffb8 |
C:\Users\Admin\AppData\Local\Temp\windows.exe
| MD5 | 66b5dabec55deb65ac6ecdbb385c9181 |
| SHA1 | 8485dc1ecf501916e3850521e81112fccdfaa110 |
| SHA256 | 9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138 |
| SHA512 | 28ff7068f0d8c1d7e0de8a6129d64db7d566868dc93e9bb8ba4de737d11483f8dd52edc6f67799cdf3396109061835bce472a2123477bb9304f1ff902ffdffb8 |
memory/4956-145-0x0000000002960000-0x0000000002970000-memory.dmp
memory/4956-146-0x0000000002960000-0x0000000002970000-memory.dmp