Analysis Overview
SHA256
48429db29ff42c7c50264ca1645560f5ca4e2a3e0f934dd59a06572c7770e7e7
Threat Level: Known bad
The file FlySide.exe was found to be: Known bad.
Malicious Activity Summary
Asyncrat family
Async RAT payload
AsyncRat
Async RAT payload
Checks computer location settings
Executes dropped EXE
Enumerates physical storage devices
Unsigned PE
Uses Task Scheduler COM API
Delays execution with timeout.exe
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-16 17:46
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
2024-06-16 17:46
Reported
2024-06-16 17:49
Platform
win10v2004-20240508-en
Max time kernel
150s
Max time network
153s
Command Line
Signatures
AsyncRat
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\FlySide.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Winrar.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\FlySide.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Winrar.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\FlySide.exe
"C:\Users\Admin\AppData\Local\Temp\FlySide.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Winrar" /tr '"C:\Users\Admin\AppData\Roaming\Winrar.exe"' & exit
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4C2C.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "Winrar" /tr '"C:\Users\Admin\AppData\Roaming\Winrar.exe"'
C:\Users\Admin\AppData\Roaming\Winrar.exe
"C:\Users\Admin\AppData\Roaming\Winrar.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 | |
| US | 52.111.229.48:443 | 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/3920-0-0x00007FFDE63E3000-0x00007FFDE63E5000-memory.dmp
memory/3920-1-0x00000000000A0000-0x00000000000E0000-memory.dmp
memory/3920-2-0x00007FFDE63E0000-0x00007FFDE6EA1000-memory.dmp
memory/3920-7-0x00007FFDE63E0000-0x00007FFDE6EA1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp4C2C.tmp.bat
| MD5 | cf837f9324105170a5b098ee74d79a24 |
| SHA1 | fca413ccd1ea743fa88ae5394e285802516f30b6 |
| SHA256 | 27b958a7b56ee8df3798e753e91a8668c0cdded01d62e215fa5fe5a0870ab838 |
| SHA512 | ddf3c71dcf87b34a3cb455e90e9a87565751f5dc53c2e949c5c3a7a8a2e0dba81b497f71c89af912e64236ee9dc0b21e218cb1500e0b9eb8ba302c5d93b6457c |
C:\Users\Admin\AppData\Roaming\Winrar.exe
| MD5 | 0f582a0b2557f50a4745751a4c128c34 |
| SHA1 | 894660b4a64e8309393f08f686cade8721dc5f73 |
| SHA256 | 48429db29ff42c7c50264ca1645560f5ca4e2a3e0f934dd59a06572c7770e7e7 |
| SHA512 | b1c860bbae77ac8642bf1fb7963606b64d74b7ceb7e28d262b3cb2ae8a2e843aa22bfc18cc4882df1e83e58009205805452a412eddcd87615a6b3fb5802fab34 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-16 17:46
Reported
2024-06-16 17:49
Platform
win7-20240611-en
Max time kernel
150s
Max time network
128s
Command Line
Signatures
AsyncRat
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Winrar.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\FlySide.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Winrar.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\FlySide.exe
"C:\Users\Admin\AppData\Local\Temp\FlySide.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Winrar" /tr '"C:\Users\Admin\AppData\Roaming\Winrar.exe"' & exit
C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp7926.tmp.bat""
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "Winrar" /tr '"C:\Users\Admin\AppData\Roaming\Winrar.exe"'
C:\Windows\system32\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\Winrar.exe
"C:\Users\Admin\AppData\Roaming\Winrar.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/2260-0-0x000007FEF5FD3000-0x000007FEF5FD4000-memory.dmp
memory/2260-1-0x00000000011A0000-0x00000000011E0000-memory.dmp
memory/2260-2-0x000007FEF5FD0000-0x000007FEF69BC000-memory.dmp
memory/2260-3-0x000007FEF5FD0000-0x000007FEF69BC000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp7926.tmp.bat
| MD5 | cf400c8172431b8f35cb42226e7f01ca |
| SHA1 | c30e469344465883d958bc737e868ac6b83a577c |
| SHA256 | 18f16b50ecb19a6cf9db7f21a6fe517b662547f1df2d916ed008b84daa0edd08 |
| SHA512 | 23993b65a3faafdde0eb28c041de4d962c03da8e5c9265df0e161f67215dfa8f8742de921c01f3ac0f2971ccc1af8087a636d49269f6fbd0f7c7e660d778ca8e |
memory/2260-12-0x000007FEF5FD0000-0x000007FEF69BC000-memory.dmp
C:\Users\Admin\AppData\Roaming\Winrar.exe
| MD5 | 0f582a0b2557f50a4745751a4c128c34 |
| SHA1 | 894660b4a64e8309393f08f686cade8721dc5f73 |
| SHA256 | 48429db29ff42c7c50264ca1645560f5ca4e2a3e0f934dd59a06572c7770e7e7 |
| SHA512 | b1c860bbae77ac8642bf1fb7963606b64d74b7ceb7e28d262b3cb2ae8a2e843aa22bfc18cc4882df1e83e58009205805452a412eddcd87615a6b3fb5802fab34 |
memory/1608-17-0x0000000000F10000-0x0000000000F50000-memory.dmp