Analysis Overview
SHA256
5969e616a32e7cb09dd32ddca0c37e989a6131edb5c4a7b4367400c3f0e8527e
Threat Level: Known bad
The file flemme.exe was found to be: Known bad.
Malicious Activity Summary
Asyncrat family
Async RAT payload
AsyncRat
Async RAT payload
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Enumerates physical storage devices
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Delays execution with timeout.exe
Scheduled Task/Job: Scheduled Task
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-02 20:56
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
2024-08-02 20:56
Reported
2024-08-02 20:59
Platform
win7-20240704-en
Max time kernel
147s
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\executorroblox.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
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\schtasks.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\timeout.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\executorroblox.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\flemme.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\flemme.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\flemme.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\flemme.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\flemme.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\executorroblox.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\flemme.exe
"C:\Users\Admin\AppData\Local\Temp\flemme.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "executorroblox" /tr '"C:\Users\Admin\AppData\Roaming\executorroblox.exe"' & exit
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp710B.tmp.bat""
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "executorroblox" /tr '"C:\Users\Admin\AppData\Roaming\executorroblox.exe"'
C:\Windows\SysWOW64\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\executorroblox.exe
"C:\Users\Admin\AppData\Roaming\executorroblox.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 127.0.0.1:7707 | 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 | 127.0.0.1:6606 | 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 | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:7707 | 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 | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:6606 | tcp | |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:6606 | tcp | |
| N/A | 127.0.0.1:7707 | tcp |
Files
memory/2816-0-0x0000000073CCE000-0x0000000073CCF000-memory.dmp
memory/2816-1-0x00000000003B0000-0x00000000003D2000-memory.dmp
memory/2816-2-0x0000000073CC0000-0x00000000743AE000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp710B.tmp.bat
| MD5 | ffc68f80770d3404c7354e157f160362 |
| SHA1 | 6fe4d4591f1aed31971c0a89d6500fca8cc7d87d |
| SHA256 | 406f40e06ca26782a78088119142933ab9571e1cf99789346fda78d5eb857b66 |
| SHA512 | aedab85ebf204811a9184e028794c2d7d38c3c3d9a9a65e242c088b40aad265e4f54d32ae85188f2cb78d7f3e6f9dfcea43023be71d6befdcc489163a7639064 |
memory/2816-11-0x0000000073CC0000-0x00000000743AE000-memory.dmp
\Users\Admin\AppData\Roaming\executorroblox.exe
| MD5 | 2dd4a3e79a430fcf80e0c16c059c4c2c |
| SHA1 | b32b851bb2746acfa2035d6765f7827e5880debb |
| SHA256 | 5969e616a32e7cb09dd32ddca0c37e989a6131edb5c4a7b4367400c3f0e8527e |
| SHA512 | cae7ef83d8eb0f77d018dae6327b46cbb61e68623d64551492f883b9903a00ff410a9bda7c84f4348497e55b34490b315f855b95288e71710076cb246863a6a4 |
memory/2616-16-0x00000000000A0000-0x00000000000C2000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-02 20:56
Reported
2024-08-02 20:59
Platform
win10v2004-20240802-en
Max time kernel
149s
Max time network
150s
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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\flemme.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\executorroblox.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\flemme.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\schtasks.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\timeout.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\executorroblox.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\flemme.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\executorroblox.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\flemme.exe
"C:\Users\Admin\AppData\Local\Temp\flemme.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "executorroblox" /tr '"C:\Users\Admin\AppData\Roaming\executorroblox.exe"' & exit
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC534.tmp.bat""
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "executorroblox" /tr '"C:\Users\Admin\AppData\Roaming\executorroblox.exe"'
C:\Windows\SysWOW64\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\executorroblox.exe
"C:\Users\Admin\AppData\Roaming\executorroblox.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:6606 | tcp | |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:6606 | 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 | |
| US | 8.8.8.8:53 | 240.143.123.92.in-addr.arpa | 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 | 127.0.0.1:6606 | tcp | |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| 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 | 127.0.0.1:6606 | 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/1052-0-0x0000000074C1E000-0x0000000074C1F000-memory.dmp
memory/1052-1-0x0000000000600000-0x0000000000622000-memory.dmp
memory/1052-2-0x0000000074C10000-0x00000000753C0000-memory.dmp
memory/1052-3-0x0000000005060000-0x00000000050FC000-memory.dmp
memory/1052-8-0x0000000074C10000-0x00000000753C0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpC534.tmp.bat
| MD5 | ef242ca31ef8f6d4a24a56411839b0e7 |
| SHA1 | 86f787c0a86affe3c7440a94baa1ea0e1d3d8f9a |
| SHA256 | 5fc9c56981f3ce7be58dca13f1ea38bb2f9cb0d96c7d0a2daa83ca36ff19f7a5 |
| SHA512 | 86f9796395661fa043a42cbc4bb557a651dd374f2cbc55c1f6cdb21181ec2b4789c94b8d1b5fe66ae014c5f7c368fb255670ae0d70feb6ac42f497a87f64c5fe |
C:\Users\Admin\AppData\Roaming\executorroblox.exe
| MD5 | 2dd4a3e79a430fcf80e0c16c059c4c2c |
| SHA1 | b32b851bb2746acfa2035d6765f7827e5880debb |
| SHA256 | 5969e616a32e7cb09dd32ddca0c37e989a6131edb5c4a7b4367400c3f0e8527e |
| SHA512 | cae7ef83d8eb0f77d018dae6327b46cbb61e68623d64551492f883b9903a00ff410a9bda7c84f4348497e55b34490b315f855b95288e71710076cb246863a6a4 |
memory/432-13-0x0000000074B80000-0x0000000075330000-memory.dmp
memory/432-14-0x0000000074B80000-0x0000000075330000-memory.dmp
memory/432-15-0x0000000074B80000-0x0000000075330000-memory.dmp
memory/432-16-0x0000000074B80000-0x0000000075330000-memory.dmp