Malware Analysis Report

2024-11-16 13:09

Sample ID 220619-2fe69sghc8
Target 342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5
SHA256 342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5
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

342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5

Threat Level: Known bad

The file 342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5 was found to be: Known bad.

Malicious Activity Summary

limerat rat

LimeRAT

Drops startup file

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-06-19 22:31

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-06-19 22:31

Reported

2022-06-19 22:53

Platform

win7-20220414-en

Max time kernel

150s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.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\vbc.url C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.exe N/A

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 656 set thread context of 1124 N/A C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.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 WriteProcessMemory

Description Indicator Process Target
PID 656 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 656 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 656 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 656 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 656 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 656 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 656 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 656 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.exe

"C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.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 104.20.67.143:443 pastebin.com tcp

Files

memory/656-54-0x0000000000DD0000-0x0000000000E9C000-memory.dmp

memory/656-55-0x0000000000270000-0x0000000000278000-memory.dmp

memory/656-56-0x00000000004C0000-0x00000000004FA000-memory.dmp

memory/656-57-0x0000000000280000-0x000000000028C000-memory.dmp

memory/656-58-0x00000000755A1000-0x00000000755A3000-memory.dmp

memory/1124-59-0x0000000000408D1E-mapping.dmp

memory/656-60-0x0000000000460000-0x0000000000463000-memory.dmp

memory/1124-62-0x0000000074130000-0x00000000746DB000-memory.dmp

memory/1124-63-0x0000000074130000-0x00000000746DB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-06-19 22:31

Reported

2022-06-19 22:53

Platform

win10v2004-20220414-en

Max time kernel

150s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.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\vbc.url C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.exe N/A

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 776 set thread context of 4560 N/A C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.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

Processes

C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.exe

"C:\Users\Admin\AppData\Local\Temp\342b2e3b3e756eb046794a12c10567d04e8255f096e616f40129025968d8f2a5.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.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
US 52.168.117.170:443 tcp
NL 104.110.191.140:80 tcp
US 209.197.3.8:80 tcp
US 8.238.111.126:80 tcp
US 8.238.111.126:80 tcp
US 204.79.197.203:80 tcp

Files

memory/776-130-0x00000000002F0000-0x00000000003BC000-memory.dmp

memory/4560-131-0x0000000000000000-mapping.dmp

memory/776-132-0x000000000A210000-0x000000000A213000-memory.dmp

memory/4560-133-0x00000000750F0000-0x00000000756A1000-memory.dmp

memory/4560-134-0x00000000750F0000-0x00000000756A1000-memory.dmp