Malware Analysis Report

2024-11-16 13:09

Sample ID 220701-fpqtgaehd9
Target e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9
SHA256 e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9
Tags
limerat persistence 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

e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9

Threat Level: Known bad

The file e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9 was found to be: Known bad.

Malicious Activity Summary

limerat persistence rat

LimeRAT

Checks computer location settings

Deletes itself

Legitimate hosting services abused for malware hosting/C2

Adds Run key to start application

AutoIT Executable

Suspicious use of SetThreadContext

Enumerates physical storage devices

Suspicious use of SendNotifyMessage

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Delays execution with timeout.exe

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-07-01 05:03

Signatures

AutoIT Executable

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

Analysis: behavioral1

Detonation Overview

Submitted

2022-07-01 05:03

Reported

2022-07-01 05:59

Platform

win7-20220414-en

Max time kernel

151s

Max time network

161s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe"

Signatures

LimeRAT

rat limerat

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\asvyAIjjwP = "C:\\Users\\Public\\asvyAIjjwP.vbs" C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe N/A

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2016 set thread context of 1652 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Enumerates physical storage devices

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2016 wrote to memory of 1652 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2016 wrote to memory of 1652 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2016 wrote to memory of 1652 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2016 wrote to memory of 1652 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2016 wrote to memory of 1652 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2016 wrote to memory of 1652 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2016 wrote to memory of 1652 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2016 wrote to memory of 1652 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2016 wrote to memory of 1652 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2016 wrote to memory of 1408 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\SysWOW64\cmd.exe
PID 2016 wrote to memory of 1408 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\SysWOW64\cmd.exe
PID 2016 wrote to memory of 1408 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\SysWOW64\cmd.exe
PID 2016 wrote to memory of 1408 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\SysWOW64\cmd.exe
PID 1408 wrote to memory of 1664 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1408 wrote to memory of 1664 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1408 wrote to memory of 1664 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1408 wrote to memory of 1664 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe

"C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe"

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

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

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c TimeOut 1 & Del /F "C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe"

C:\Windows\SysWOW64\timeout.exe

TimeOut 1

Network

Country Destination Domain Proto
US 8.8.8.8:53 fasttrackers.services udp
US 8.8.8.8:53 pastebin.com udp
US 172.67.34.170:443 pastebin.com tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp

Files

memory/2016-54-0x0000000075191000-0x0000000075193000-memory.dmp

memory/1652-55-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1652-57-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1652-61-0x0000000000408DEE-mapping.dmp

memory/1652-62-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1652-63-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1408-65-0x0000000000000000-mapping.dmp

memory/1664-66-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-07-01 05:03

Reported

2022-07-01 05:59

Platform

win10v2004-20220414-en

Max time kernel

156s

Max time network

167s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe"

Signatures

LimeRAT

rat limerat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows\CurrentVersion\Run C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\asvyAIjjwP = "C:\\Users\\Public\\asvyAIjjwP.vbs" C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe N/A

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3560 set thread context of 4552 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Enumerates physical storage devices

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3560 wrote to memory of 4552 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3560 wrote to memory of 4552 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3560 wrote to memory of 4552 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3560 wrote to memory of 4552 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3560 wrote to memory of 4552 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3560 wrote to memory of 5004 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\SysWOW64\cmd.exe
PID 3560 wrote to memory of 5004 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\SysWOW64\cmd.exe
PID 3560 wrote to memory of 5004 N/A C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe C:\Windows\SysWOW64\cmd.exe
PID 5004 wrote to memory of 4296 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 5004 wrote to memory of 4296 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 5004 wrote to memory of 4296 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe

"C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe"

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

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

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c TimeOut 1 & Del /F "C:\Users\Admin\AppData\Local\Temp\e89502dbd34503e7c39c58bb3fd0c4716e8298f703298e099f9199e3e44712d9.exe"

C:\Windows\SysWOW64\timeout.exe

TimeOut 1

Network

Country Destination Domain Proto
FR 2.18.109.224:443 tcp
US 104.18.24.243:80 tcp
AU 104.46.162.226:443 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 fasttrackers.services udp
US 8.8.8.8:53 pastebin.com udp
US 104.20.68.143:443 pastebin.com tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp
US 67.207.93.53:4425 tcp

Files

memory/4552-131-0x0000000000400000-0x000000000040C000-memory.dmp

memory/4552-130-0x0000000000000000-mapping.dmp

memory/4552-135-0x0000000004F60000-0x0000000004FFC000-memory.dmp

memory/4552-136-0x0000000004ED0000-0x0000000004F36000-memory.dmp

memory/5004-137-0x0000000000000000-mapping.dmp

memory/4296-138-0x0000000000000000-mapping.dmp

memory/4552-139-0x0000000005BD0000-0x0000000006174000-memory.dmp

memory/4552-140-0x0000000006350000-0x00000000063E2000-memory.dmp