Malware Analysis Report

2024-11-16 13:09

Sample ID 220625-f877vsgaak
Target 7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068
SHA256 7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068
Tags
limerat rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068

Threat Level: Known bad

The file 7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068 was found to be: Known bad.

Malicious Activity Summary

limerat rat

LimeRAT

Drops startup file

Legitimate hosting services abused for malware hosting/C2

Maps connected drives based on registry

AutoIT Executable

Suspicious use of SetThreadContext

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-06-25 05:33

Signatures

AutoIT Executable

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-06-25 05:33

Reported

2022-06-25 06:37

Platform

win7-20220414-en

Max time kernel

167s

Max time network

174s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe"

Signatures

LimeRAT

rat limerat

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\relog.url C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.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\v4.0.30319\RegSvcs.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 884 set thread context of 1944 N/A C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 884 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 884 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 884 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 884 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 884 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 884 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 884 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 884 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 884 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Processes

C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe

"C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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/884-54-0x0000000075801000-0x0000000075803000-memory.dmp

memory/1944-61-0x000000000040824E-mapping.dmp

memory/1944-55-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1944-57-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1944-62-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1944-63-0x0000000000400000-0x000000000040C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-06-25 05:33

Reported

2022-06-25 06:34

Platform

win10v2004-20220414-en

Max time kernel

156s

Max time network

163s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe"

Signatures

LimeRAT

rat limerat

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\relog.url C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.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\v4.0.30319\RegSvcs.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4668 set thread context of 1656 N/A C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe

"C:\Users\Admin\AppData\Local\Temp\7542582b2690260c728a4eee7ed006b83b5503124bfc05def39de687f837c068.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
US 204.79.197.200:443 tcp
NL 104.110.191.140:80 tcp
US 8.8.8.8:53 pastebin.com udp
US 172.67.34.170:443 pastebin.com tcp
US 52.168.117.170:443 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
FR 2.18.109.224:443 tcp
US 104.18.25.243:80 tcp
US 209.197.3.8:80 tcp

Files

memory/1656-130-0x0000000000000000-mapping.dmp

memory/1656-131-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1656-135-0x0000000005050000-0x00000000050EC000-memory.dmp

memory/1656-136-0x00000000050F0000-0x0000000005156000-memory.dmp

memory/1656-137-0x0000000005E50000-0x00000000063F4000-memory.dmp

memory/1656-138-0x0000000006700000-0x0000000006792000-memory.dmp