Analysis Overview
SHA256
6148afd882ab17b41c7e5d92569d55426ef18bec0c45335529ca66c0ae19efdd
Threat Level: Known bad
The file UniAccChecker.exe 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
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious use of AdjustPrivilegeToken
Uses Task Scheduler COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-22 19:32
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
2024-01-22 19:32
Reported
2024-01-22 19:34
Platform
win7-20231215-en
Max time kernel
153s
Max time network
129s
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 |
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\tmp7E83.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 |
| 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/1016-0-0x0000000001140000-0x0000000001156000-memory.dmp
memory/1016-1-0x000007FEF5D20000-0x000007FEF670C000-memory.dmp
memory/1016-2-0x0000000000FE0000-0x0000000001060000-memory.dmp
memory/1016-3-0x0000000077980000-0x0000000077B29000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp7E83.tmp.bat
| MD5 | 0f22e5336c09acf8ff1a702c842b1fc9 |
| SHA1 | 929c137aba16114adbbccb1148ba17d5bdcdacc7 |
| SHA256 | d66f37898c41cc218a3f15f792c4c4993af5076c92ef4eb92b88196f8cb85ed2 |
| SHA512 | 5a3c462de74b028430f021a6b7dbd5bf45ade0d04862ce564deaf1f2912d2b7758e736a746bffdd96bf7567e91815401e41670e6a8f2a5156625a7adc4c186c2 |
memory/1016-12-0x000007FEF5D20000-0x000007FEF670C000-memory.dmp
memory/1016-13-0x0000000077980000-0x0000000077B29000-memory.dmp
C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.exe
| MD5 | e40435c6df1a16aad70fcb8582228bc3 |
| SHA1 | 8d5a1a1213b6680cfe3cb59aa0383ae8a91d5141 |
| SHA256 | 6148afd882ab17b41c7e5d92569d55426ef18bec0c45335529ca66c0ae19efdd |
| SHA512 | f7e33a06735e0297c06d3875010bc065471ce44ff86466cdf36c7773f4c3b1e9aef96c00efbf162976f695e50f06e7729f995a63a9de6335e0dcb36e7a19da2b |
memory/2724-18-0x0000000000BB0000-0x0000000000BC6000-memory.dmp
memory/2724-19-0x000007FEF5330000-0x000007FEF5D1C000-memory.dmp
memory/2724-20-0x000000001B1F0000-0x000000001B270000-memory.dmp
memory/2724-21-0x0000000077980000-0x0000000077B29000-memory.dmp
memory/2724-22-0x000007FEF5330000-0x000007FEF5D1C000-memory.dmp
memory/2724-23-0x0000000077980000-0x0000000077B29000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-22 19:32
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-1-5-21-1497073144-2389943819-3385106915-1000\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\tmp5A55.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 |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 6.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:3232 | tcp | |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| 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 | 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 | 81.171.91.138.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.160.77.104.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 | |
| US | 8.8.8.8:53 | 210.178.17.96.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 | |
| N/A | 127.0.0.1:3232 | tcp | |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 192.178.17.96.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 | |
| 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/2148-0-0x0000000000050000-0x0000000000066000-memory.dmp
memory/2148-1-0x00007FFF52780000-0x00007FFF53241000-memory.dmp
memory/2148-2-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2148-8-0x00007FFF70730000-0x00007FFF70925000-memory.dmp
memory/2148-7-0x00007FFF52780000-0x00007FFF53241000-memory.dmp
memory/2148-9-0x00007FFF5DA70000-0x00007FFF5DA89000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp5A55.tmp.bat
| MD5 | e4152776a243b5dcbabdc9c30ef6a145 |
| SHA1 | 9e8532a01ac3a18c0790d7f31880ee8096fc6c22 |
| SHA256 | 7f0a9b833e6291747e7599a598def4b5336c34bd2e3e5aa8b2bb893531253ced |
| SHA512 | 3de0cd9c8b02fc70cb5ba77e50875978b08c99a6734ff38442659468b99bed4504e8b70935a0717e534922bc6c26de3fb59ecdf108b5802df1cbda1b3f9febd6 |
C:\Users\Admin\AppData\Roaming\GoogleChromeUpd.exe
| MD5 | e40435c6df1a16aad70fcb8582228bc3 |
| SHA1 | 8d5a1a1213b6680cfe3cb59aa0383ae8a91d5141 |
| SHA256 | 6148afd882ab17b41c7e5d92569d55426ef18bec0c45335529ca66c0ae19efdd |
| SHA512 | f7e33a06735e0297c06d3875010bc065471ce44ff86466cdf36c7773f4c3b1e9aef96c00efbf162976f695e50f06e7729f995a63a9de6335e0dcb36e7a19da2b |
memory/4148-14-0x00007FFF52780000-0x00007FFF53241000-memory.dmp
memory/4148-15-0x0000000002B50000-0x0000000002B60000-memory.dmp
memory/4148-16-0x00007FFF52780000-0x00007FFF53241000-memory.dmp
memory/4148-17-0x0000000002B50000-0x0000000002B60000-memory.dmp