Analysis Overview
SHA256
b9f80a3672f06e5a56641e48021b6bdb6a4fa25ad1bcefa0ecaaa433b0e36271
Threat Level: Known bad
The file b9f80a3672f06e5a56641e48021b6bdb6a4fa25ad1bcefa0ecaaa433b0e36271 was found to be: Known bad.
Malicious Activity Summary
LimeRAT
Executes dropped EXE
Drops startup file
Loads dropped DLL
AutoIT Executable
Suspicious use of SetThreadContext
Suspicious use of SendNotifyMessage
Creates scheduled task(s)
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-06-25 06:00
Signatures
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2022-06-25 06:00
Reported
2022-06-25 06:35
Platform
win7-20220414-en
Max time kernel
144s
Max time network
70s
Command Line
Signatures
LimeRAT
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Operelink.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cdp.url | C:\Users\Admin\AppData\Local\Temp\b9f80a3672f06e5a56641e48021b6bdb6a4fa25ad1bcefa0ecaaa433b0e36271.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1656 set thread context of 648 | N/A | C:\Users\Admin\AppData\Local\Temp\b9f80a3672f06e5a56641e48021b6bdb6a4fa25ad1bcefa0ecaaa433b0e36271.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b9f80a3672f06e5a56641e48021b6bdb6a4fa25ad1bcefa0ecaaa433b0e36271.exe
"C:\Users\Admin\AppData\Local\Temp\b9f80a3672f06e5a56641e48021b6bdb6a4fa25ad1bcefa0ecaaa433b0e36271.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v4.0.30319\\\\MSBuild.exe"
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Local\Temp\Operelink.exe'"
C:\Users\Admin\AppData\Local\Temp\Operelink.exe
"C:\Users\Admin\AppData\Local\Temp\Operelink.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | www.timeapi.org | udp |
| N/A | 127.0.0.1:80 | tcp |
Files
memory/1656-54-0x0000000075781000-0x0000000075783000-memory.dmp
memory/1656-55-0x0000000002560000-0x0000000002595000-memory.dmp
memory/648-58-0x0000000000400000-0x000000000040C000-memory.dmp
memory/648-62-0x0000000000408D5E-mapping.dmp
memory/648-56-0x0000000000400000-0x000000000040C000-memory.dmp
memory/1656-65-0x0000000002560000-0x0000000002562000-memory.dmp
memory/648-64-0x0000000000400000-0x000000000040C000-memory.dmp
memory/648-63-0x0000000000400000-0x000000000040C000-memory.dmp
memory/536-66-0x0000000000000000-mapping.dmp
\Users\Admin\AppData\Local\Temp\Operelink.exe
| MD5 | 9af17c8393f0970ee5136bd3ffa27001 |
| SHA1 | 4b285b72c1a11285a25f31f2597e090da6bbc049 |
| SHA256 | 71d6a7a3fe5f8dc878cd5bdeca0e09177efb85c01e9a8a10a95262cabefaa019 |
| SHA512 | b90f7de7d5ce72dccb264c7ba609e173c529b9d99ed9a63f88632bc58b1a994bbb727365f519c73b979f8918bd6de3c39a9f0347eb3a4bccdce4b2772a6516a3 |
memory/1328-69-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\Operelink.exe
| MD5 | 9af17c8393f0970ee5136bd3ffa27001 |
| SHA1 | 4b285b72c1a11285a25f31f2597e090da6bbc049 |
| SHA256 | 71d6a7a3fe5f8dc878cd5bdeca0e09177efb85c01e9a8a10a95262cabefaa019 |
| SHA512 | b90f7de7d5ce72dccb264c7ba609e173c529b9d99ed9a63f88632bc58b1a994bbb727365f519c73b979f8918bd6de3c39a9f0347eb3a4bccdce4b2772a6516a3 |
C:\Users\Admin\AppData\Local\Temp\Operelink.exe
| MD5 | 9af17c8393f0970ee5136bd3ffa27001 |
| SHA1 | 4b285b72c1a11285a25f31f2597e090da6bbc049 |
| SHA256 | 71d6a7a3fe5f8dc878cd5bdeca0e09177efb85c01e9a8a10a95262cabefaa019 |
| SHA512 | b90f7de7d5ce72dccb264c7ba609e173c529b9d99ed9a63f88632bc58b1a994bbb727365f519c73b979f8918bd6de3c39a9f0347eb3a4bccdce4b2772a6516a3 |
memory/1328-72-0x0000000000CC0000-0x0000000000D00000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-06-25 06:00
Reported
2022-06-25 06:37
Platform
win10v2004-20220414-en
Max time kernel
135s
Max time network
171s
Command Line
Signatures
LimeRAT
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Operelink.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cdp.url | C:\Users\Admin\AppData\Local\Temp\b9f80a3672f06e5a56641e48021b6bdb6a4fa25ad1bcefa0ecaaa433b0e36271.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3136 set thread context of 1836 | N/A | C:\Users\Admin\AppData\Local\Temp\b9f80a3672f06e5a56641e48021b6bdb6a4fa25ad1bcefa0ecaaa433b0e36271.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b9f80a3672f06e5a56641e48021b6bdb6a4fa25ad1bcefa0ecaaa433b0e36271.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b9f80a3672f06e5a56641e48021b6bdb6a4fa25ad1bcefa0ecaaa433b0e36271.exe
"C:\Users\Admin\AppData\Local\Temp\b9f80a3672f06e5a56641e48021b6bdb6a4fa25ad1bcefa0ecaaa433b0e36271.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v4.0.30319\\\\MSBuild.exe"
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Local\Temp\Operelink.exe'"
C:\Users\Admin\AppData\Local\Temp\Operelink.exe
"C:\Users\Admin\AppData\Local\Temp\Operelink.exe"
Network
| Country | Destination | Domain | Proto |
| US | 67.26.211.254:80 | tcp | |
| US | 8.252.118.126:80 | tcp | |
| US | 67.24.169.254:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| IE | 13.69.239.73:443 | tcp | |
| US | 8.252.118.126:80 | tcp | |
| US | 67.26.207.254:80 | tcp | |
| US | 8.8.8.8:53 | www.timeapi.org | udp |
| N/A | 127.0.0.1:80 | tcp | |
| US | 67.26.211.254:80 | tcp | |
| US | 67.26.211.254:80 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 204.79.197.203:80 | tcp | |
| US | 204.79.197.200:443 | tcp | |
| US | 204.79.197.200:443 | tcp | |
| US | 67.26.211.254:80 | tcp |
Files
memory/3136-130-0x0000000005F30000-0x0000000005F38000-memory.dmp
memory/1836-131-0x0000000000000000-mapping.dmp
memory/1836-132-0x0000000000740000-0x000000000074C000-memory.dmp
memory/1836-136-0x0000000004BC0000-0x0000000004C5C000-memory.dmp
memory/1836-137-0x0000000004CA0000-0x0000000004D06000-memory.dmp
memory/1836-138-0x00000000058C0000-0x0000000005E64000-memory.dmp
memory/744-139-0x0000000000000000-mapping.dmp
memory/2104-140-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\Operelink.exe
| MD5 | 8fdf47e0ff70c40ed3a17014aeea4232 |
| SHA1 | e6256a0159688f0560b015da4d967f41cbf8c9bd |
| SHA256 | ed9884bac608c06b7057037cc91d90e4ae5f74dd2dbce2af476699c6d4492d82 |
| SHA512 | bd69d092ed4f9c5e1f24eaf5ec79fb316469d53849dc798fae0fcba5e90869b77ee924c23cc6f692198ff25827ab60ad47bb46cadd6e0aadde7731cbafb013be |
C:\Users\Admin\AppData\Local\Temp\Operelink.exe
| MD5 | 8fdf47e0ff70c40ed3a17014aeea4232 |
| SHA1 | e6256a0159688f0560b015da4d967f41cbf8c9bd |
| SHA256 | ed9884bac608c06b7057037cc91d90e4ae5f74dd2dbce2af476699c6d4492d82 |
| SHA512 | bd69d092ed4f9c5e1f24eaf5ec79fb316469d53849dc798fae0fcba5e90869b77ee924c23cc6f692198ff25827ab60ad47bb46cadd6e0aadde7731cbafb013be |
memory/2104-143-0x0000000000120000-0x0000000000160000-memory.dmp
memory/2104-144-0x00000000023E0000-0x00000000023FA000-memory.dmp
memory/2104-145-0x0000000004BB0000-0x0000000004D0A000-memory.dmp