Analysis Overview
SHA256
7fb468df5b46d1eb0f26e737c515a5a10794b84c9193628efb71c9c32fe8edc1
Threat Level: Known bad
The file 25d7952b3e8c9f0872ecf4f099cea1a2.bin was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Asyncrat family
Async RAT payload
Async RAT payload
Checks computer location settings
Executes dropped EXE
Unsigned PE
Enumerates physical storage devices
Uses Task Scheduler COM API
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Delays execution with timeout.exe
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-05-02 01:06
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
2023-05-02 01:06
Reported
2023-05-02 01:09
Platform
win7-20230220-en
Max time kernel
149s
Max time network
34s
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\Runtime Broker.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\25d7952b3e8c9f0872ecf4f099cea1a2.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Runtime Broker.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe
"C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Runtime Broker" /tr '"C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"' & exit
C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp7E.tmp.bat""
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "Runtime Broker" /tr '"C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"'
C:\Windows\system32\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\Runtime Broker.exe
"C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
Files
memory/1772-54-0x0000000001250000-0x0000000001262000-memory.dmp
memory/1772-55-0x000000001B060000-0x000000001B0E0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp7E.tmp.bat
| MD5 | 180e332a9b854d3e85c7906df2f970b2 |
| SHA1 | e5e3541088f64c160267cb7f64cd6cbab49b6de6 |
| SHA256 | 6b0d56e8dcb82a94a3ed6000b1b8564058c18c41618189b24eae68ac025a232f |
| SHA512 | 71df612bb291a972babf0c4317c6bc8949e8fc27a401aed343fe571d13bc0a4c366e6eb503abe82c4b7446861247aa5ad2b91c49e394be8d1774db57b9cbfa9b |
C:\Users\Admin\AppData\Local\Temp\tmp7E.tmp.bat
| MD5 | 180e332a9b854d3e85c7906df2f970b2 |
| SHA1 | e5e3541088f64c160267cb7f64cd6cbab49b6de6 |
| SHA256 | 6b0d56e8dcb82a94a3ed6000b1b8564058c18c41618189b24eae68ac025a232f |
| SHA512 | 71df612bb291a972babf0c4317c6bc8949e8fc27a401aed343fe571d13bc0a4c366e6eb503abe82c4b7446861247aa5ad2b91c49e394be8d1774db57b9cbfa9b |
C:\Users\Admin\AppData\Roaming\Runtime Broker.exe
| MD5 | 25d7952b3e8c9f0872ecf4f099cea1a2 |
| SHA1 | 976e307d3fc015452e70acd29ebddef0d8823fac |
| SHA256 | 7fb468df5b46d1eb0f26e737c515a5a10794b84c9193628efb71c9c32fe8edc1 |
| SHA512 | f81102833efd450be231d238f3065cf3d5cb9ae6c60f0a4e6b057ffd4c78a2767b0fd8aff54e0bb08ebdf5b5da293f622e68c4874776f0fa25adfd639ca4f3eb |
C:\Users\Admin\AppData\Roaming\Runtime Broker.exe
| MD5 | 25d7952b3e8c9f0872ecf4f099cea1a2 |
| SHA1 | 976e307d3fc015452e70acd29ebddef0d8823fac |
| SHA256 | 7fb468df5b46d1eb0f26e737c515a5a10794b84c9193628efb71c9c32fe8edc1 |
| SHA512 | f81102833efd450be231d238f3065cf3d5cb9ae6c60f0a4e6b057ffd4c78a2767b0fd8aff54e0bb08ebdf5b5da293f622e68c4874776f0fa25adfd639ca4f3eb |
memory/1528-68-0x0000000000CF0000-0x0000000000D02000-memory.dmp
memory/1528-69-0x000000001B300000-0x000000001B380000-memory.dmp
memory/1528-70-0x000000001B300000-0x000000001B380000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-05-02 01:06
Reported
2023-05-02 01:09
Platform
win10v2004-20230220-en
Max time kernel
151s
Max time network
159s
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-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Runtime Broker.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\25d7952b3e8c9f0872ecf4f099cea1a2.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Runtime Broker.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe
"C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Runtime Broker" /tr '"C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"' & exit
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9E48.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "Runtime Broker" /tr '"C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"'
C:\Users\Admin\AppData\Roaming\Runtime Broker.exe
"C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 93.184.220.29:80 | tcp | |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 40.125.122.151:443 | tcp | |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| NL | 20.50.201.195:443 | tcp | |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| NL | 173.223.113.164:443 | tcp | |
| NL | 173.223.113.131:80 | tcp | |
| US | 131.253.33.203:80 | tcp | |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | 45.8.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.36.159.162.in-addr.arpa | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 209.197.3.8:80 | tcp | |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
| US | 8.8.8.8:53 | dom45x.duckdns.org | udp |
Files
memory/4584-133-0x00000000001D0000-0x00000000001E2000-memory.dmp
memory/4584-134-0x000000001AE70000-0x000000001AE80000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp9E48.tmp.bat
| MD5 | 0a61c60c5d21e9fec07bff93a322200f |
| SHA1 | 8e48a2f8f59ea183da6581e18b2715d0a7d4b9cf |
| SHA256 | 3dfc56440f0409f9fe2c4752ca80efba1144b5d2da80b02e1c74f181e8ad654d |
| SHA512 | 40e6b76589d2cd23817bc1493397c72edfb1846fa64725637ddd1c828448eda22ff89628091f1d01b7af6a3858815abf91f5994f50ff4893cf355f7a8cc57be4 |
C:\Users\Admin\AppData\Roaming\Runtime Broker.exe
| MD5 | 25d7952b3e8c9f0872ecf4f099cea1a2 |
| SHA1 | 976e307d3fc015452e70acd29ebddef0d8823fac |
| SHA256 | 7fb468df5b46d1eb0f26e737c515a5a10794b84c9193628efb71c9c32fe8edc1 |
| SHA512 | f81102833efd450be231d238f3065cf3d5cb9ae6c60f0a4e6b057ffd4c78a2767b0fd8aff54e0bb08ebdf5b5da293f622e68c4874776f0fa25adfd639ca4f3eb |
C:\Users\Admin\AppData\Roaming\Runtime Broker.exe
| MD5 | 25d7952b3e8c9f0872ecf4f099cea1a2 |
| SHA1 | 976e307d3fc015452e70acd29ebddef0d8823fac |
| SHA256 | 7fb468df5b46d1eb0f26e737c515a5a10794b84c9193628efb71c9c32fe8edc1 |
| SHA512 | f81102833efd450be231d238f3065cf3d5cb9ae6c60f0a4e6b057ffd4c78a2767b0fd8aff54e0bb08ebdf5b5da293f622e68c4874776f0fa25adfd639ca4f3eb |
memory/4052-143-0x000000001B9E0000-0x000000001B9F0000-memory.dmp
memory/4052-144-0x000000001B9E0000-0x000000001B9F0000-memory.dmp