Analysis Overview
SHA256
2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440
Threat Level: Known bad
The file 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440 was found to be: Known bad.
Malicious Activity Summary
LimeRAT
UPX packed file
Drops startup file
Legitimate hosting services abused for malware hosting/C2
Maps connected drives based on registry
Suspicious use of SetThreadContext
AutoIT Executable
Modifies system certificate store
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-06-15 01:29
Signatures
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2022-06-15 01:29
Reported
2022-06-15 04:16
Platform
win7-20220414-en
Max time kernel
150s
Max time network
177s
Command Line
Signatures
LimeRAT
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\BcastDVRBroker.url | C:\Users\Admin\AppData\Local\Temp\2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
Maps connected drives based on registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2024 set thread context of 1268 | N/A | C:\Users\Admin\AppData\Local\Temp\2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
Modifies system certificate store
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| Set value (data) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe
"C:\Users\Admin\AppData\Local\Temp\2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | pastebin.com | udp |
| US | 172.67.34.170:443 | pastebin.com | tcp |
Files
memory/2024-54-0x0000000075B71000-0x0000000075B73000-memory.dmp
memory/1268-61-0x000000000009825E-mapping.dmp
memory/1268-57-0x0000000000090000-0x000000000009C000-memory.dmp
memory/1268-55-0x0000000000090000-0x000000000009C000-memory.dmp
memory/1268-62-0x0000000000090000-0x000000000009C000-memory.dmp
memory/2024-63-0x0000000000CF0000-0x0000000000E77000-memory.dmp
memory/1268-64-0x0000000000090000-0x000000000009C000-memory.dmp
memory/1268-66-0x0000000074470000-0x0000000074A1B000-memory.dmp
memory/1268-67-0x0000000074470000-0x0000000074A1B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-06-15 01:29
Reported
2022-06-15 04:16
Platform
win10v2004-20220414-en
Max time kernel
148s
Max time network
175s
Command Line
Signatures
LimeRAT
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\BcastDVRBroker.url | C:\Users\Admin\AppData\Local\Temp\2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
Maps connected drives based on registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4460 set thread context of 3328 | N/A | C:\Users\Admin\AppData\Local\Temp\2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe
"C:\Users\Admin\AppData\Local\Temp\2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
Network
| Country | Destination | Domain | Proto |
| US | 204.79.197.200:443 | tcp | |
| US | 204.79.197.200:443 | tcp | |
| US | 204.79.197.200:443 | www.bing.com | tcp |
| US | 204.79.197.200:443 | tcp | |
| US | 204.79.197.200:443 | www.bing.com | tcp |
| US | 52.168.117.170:443 | tcp | |
| US | 8.8.8.8:53 | 106.89.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | pastebin.com | udp |
| US | 104.20.67.143:443 | pastebin.com | tcp |
| US | 8.8.8.8:53 | 0.e.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.4.0.c.0.0.3.0.1.3.0.6.2.ip6.arpa | udp |
| US | 8.247.48.126:80 | tcp |
Files
memory/4460-130-0x0000000000270000-0x00000000003F7000-memory.dmp
memory/3328-131-0x0000000000000000-mapping.dmp
memory/3328-132-0x0000000000400000-0x000000000040C000-memory.dmp
memory/4460-136-0x0000000000270000-0x00000000003F7000-memory.dmp
memory/3328-137-0x0000000074E50000-0x0000000075401000-memory.dmp
memory/3328-138-0x0000000074E50000-0x0000000075401000-memory.dmp