Malware Analysis Report

2024-11-16 13:09

Sample ID 220608-wdevtsabgk
Target 6ef26da1b60b7ded9865e30a03062796.exe
SHA256 eb2ecf4e69565b73a8d8e0e482720d4cd53da84a12a4bbc3614ae8a140e9cec4
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

eb2ecf4e69565b73a8d8e0e482720d4cd53da84a12a4bbc3614ae8a140e9cec4

Threat Level: Known bad

The file 6ef26da1b60b7ded9865e30a03062796.exe was found to be: Known bad.

Malicious Activity Summary

limerat rat

LimeRAT

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Enumerates physical storage devices

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-06-08 17:48

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-06-08 17:48

Reported

2022-06-08 17:51

Platform

win7-20220414-en

Max time kernel

152s

Max time network

137s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe"

Signatures

LimeRAT

rat limerat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\svhost.exe N/A
N/A N/A C:\Users\Admin\svhost.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe N/A

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1472 set thread context of 952 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 836 set thread context of 1080 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe

Enumerates physical storage devices

Creates scheduled task(s)

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\svhost.exe N/A
N/A N/A C:\Users\Admin\svhost.exe N/A
N/A N/A C:\Users\Admin\svhost.exe N/A
N/A N/A C:\Users\Admin\svhost.exe N/A
N/A N/A C:\Users\Admin\svhost.exe N/A
N/A N/A C:\Users\Admin\svhost.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\svhost.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\svhost.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\svhost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1472 wrote to memory of 952 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1472 wrote to memory of 952 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1472 wrote to memory of 952 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1472 wrote to memory of 952 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1472 wrote to memory of 952 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1472 wrote to memory of 952 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1472 wrote to memory of 952 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1472 wrote to memory of 952 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 952 wrote to memory of 848 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Windows\SysWOW64\schtasks.exe
PID 952 wrote to memory of 848 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Windows\SysWOW64\schtasks.exe
PID 952 wrote to memory of 848 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Windows\SysWOW64\schtasks.exe
PID 952 wrote to memory of 848 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Windows\SysWOW64\schtasks.exe
PID 952 wrote to memory of 836 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\svhost.exe
PID 952 wrote to memory of 836 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\svhost.exe
PID 952 wrote to memory of 836 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\svhost.exe
PID 952 wrote to memory of 836 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\svhost.exe
PID 836 wrote to memory of 1080 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 836 wrote to memory of 1080 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 836 wrote to memory of 1080 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 836 wrote to memory of 1080 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 836 wrote to memory of 1080 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 836 wrote to memory of 1080 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 836 wrote to memory of 1080 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 836 wrote to memory of 1080 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe

Processes

C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe

"C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe"

C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe

"C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe"

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\svhost.exe'"

C:\Users\Admin\svhost.exe

"C:\Users\Admin\svhost.exe"

C:\Users\Admin\svhost.exe

"C:\Users\Admin\svhost.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 pastebin.com udp
US 104.20.68.143:443 pastebin.com tcp
RU 80.66.79.77:4043 tcp

Files

memory/1472-54-0x0000000000090000-0x00000000000DA000-memory.dmp

memory/952-55-0x0000000000400000-0x000000000040C000-memory.dmp

memory/952-56-0x0000000000400000-0x000000000040C000-memory.dmp

memory/952-58-0x0000000000400000-0x000000000040C000-memory.dmp

memory/952-59-0x0000000000400000-0x000000000040C000-memory.dmp

memory/952-60-0x000000000040894E-mapping.dmp

memory/952-62-0x0000000000400000-0x000000000040C000-memory.dmp

memory/952-64-0x0000000000400000-0x000000000040C000-memory.dmp

memory/848-65-0x0000000000000000-mapping.dmp

memory/952-66-0x0000000074F21000-0x0000000074F23000-memory.dmp

\Users\Admin\svhost.exe

MD5 6ef26da1b60b7ded9865e30a03062796
SHA1 69022e9ac2104e3d0d61d916e485b39e0fdf9868
SHA256 eb2ecf4e69565b73a8d8e0e482720d4cd53da84a12a4bbc3614ae8a140e9cec4
SHA512 d22477daf5597d2c7d5e5432a29393eb1e1ccaf5f1f30dd39e910552cdd65dde206121dc0ad42c58f71c74975d66c3b48335a5e5963529110eed8c6d7e184bb5

memory/836-68-0x0000000000000000-mapping.dmp

C:\Users\Admin\svhost.exe

MD5 6ef26da1b60b7ded9865e30a03062796
SHA1 69022e9ac2104e3d0d61d916e485b39e0fdf9868
SHA256 eb2ecf4e69565b73a8d8e0e482720d4cd53da84a12a4bbc3614ae8a140e9cec4
SHA512 d22477daf5597d2c7d5e5432a29393eb1e1ccaf5f1f30dd39e910552cdd65dde206121dc0ad42c58f71c74975d66c3b48335a5e5963529110eed8c6d7e184bb5

C:\Users\Admin\svhost.exe

MD5 6ef26da1b60b7ded9865e30a03062796
SHA1 69022e9ac2104e3d0d61d916e485b39e0fdf9868
SHA256 eb2ecf4e69565b73a8d8e0e482720d4cd53da84a12a4bbc3614ae8a140e9cec4
SHA512 d22477daf5597d2c7d5e5432a29393eb1e1ccaf5f1f30dd39e910552cdd65dde206121dc0ad42c58f71c74975d66c3b48335a5e5963529110eed8c6d7e184bb5

memory/836-71-0x0000000000100000-0x000000000014A000-memory.dmp

memory/1080-77-0x000000000040894E-mapping.dmp

C:\Users\Admin\svhost.exe

MD5 6ef26da1b60b7ded9865e30a03062796
SHA1 69022e9ac2104e3d0d61d916e485b39e0fdf9868
SHA256 eb2ecf4e69565b73a8d8e0e482720d4cd53da84a12a4bbc3614ae8a140e9cec4
SHA512 d22477daf5597d2c7d5e5432a29393eb1e1ccaf5f1f30dd39e910552cdd65dde206121dc0ad42c58f71c74975d66c3b48335a5e5963529110eed8c6d7e184bb5

memory/1080-84-0x0000000000590000-0x00000000005AC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-06-08 17:48

Reported

2022-06-08 17:51

Platform

win10v2004-20220414-en

Max time kernel

151s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe"

Signatures

LimeRAT

rat limerat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\svhost.exe N/A
N/A N/A C:\Users\Admin\svhost.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe N/A

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4288 set thread context of 2692 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1384 set thread context of 3704 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe

Enumerates physical storage devices

Creates scheduled task(s)

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\svhost.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\svhost.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\svhost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4288 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 4288 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 4288 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 4288 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 4288 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 4288 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 4288 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 2692 wrote to memory of 2020 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Windows\SysWOW64\schtasks.exe
PID 2692 wrote to memory of 2020 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Windows\SysWOW64\schtasks.exe
PID 2692 wrote to memory of 2020 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Windows\SysWOW64\schtasks.exe
PID 2692 wrote to memory of 1384 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\svhost.exe
PID 2692 wrote to memory of 1384 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\svhost.exe
PID 2692 wrote to memory of 1384 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\svhost.exe
PID 1384 wrote to memory of 3704 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 1384 wrote to memory of 3704 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 1384 wrote to memory of 3704 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 1384 wrote to memory of 3704 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 1384 wrote to memory of 3704 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 1384 wrote to memory of 3704 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 1384 wrote to memory of 3704 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe

Processes

C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe

"C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe"

C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe

"C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe"

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\svhost.exe'"

C:\Users\Admin\svhost.exe

"C:\Users\Admin\svhost.exe"

C:\Users\Admin\svhost.exe

"C:\Users\Admin\svhost.exe"

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
US 8.249.91.254:80 tcp
US 8.8.8.8:53 pastebin.com udp
US 104.20.67.143:443 pastebin.com tcp
RU 80.66.79.77:4043 tcp
US 20.42.73.26:443 tcp
NL 8.238.21.126:80 tcp
US 8.253.208.112:80 tcp
US 8.253.208.112:80 tcp

Files

memory/4288-130-0x0000000000640000-0x000000000068A000-memory.dmp

memory/4288-131-0x0000000005F00000-0x00000000064A4000-memory.dmp

memory/2692-132-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\6ef26da1b60b7ded9865e30a03062796.exe.log

MD5 3ca2f9e6a94c24c455ac9431a0bf479b
SHA1 a90309eec691588990609f8f8ad9b935d6f38eb2
SHA256 e84d0c64750ec6333b67eb8aef737bb21cd86c6ef6e520c6537ede13505e125e
SHA512 ba66e42b384f0d865a21d9169169a0b2bd9c62ebee68acc63a191b1a67ca16f4534f955055fc84bbc4a9cd22cec11c3c22a15df7741d99b7dec456e5cabcb0b5

memory/2692-135-0x00000000003A0000-0x00000000003AC000-memory.dmp

memory/2692-136-0x0000000004B90000-0x0000000004C2C000-memory.dmp

memory/2692-137-0x0000000004C30000-0x0000000004C96000-memory.dmp

memory/2020-138-0x0000000000000000-mapping.dmp

memory/1384-139-0x0000000000000000-mapping.dmp

C:\Users\Admin\svhost.exe

MD5 6ef26da1b60b7ded9865e30a03062796
SHA1 69022e9ac2104e3d0d61d916e485b39e0fdf9868
SHA256 eb2ecf4e69565b73a8d8e0e482720d4cd53da84a12a4bbc3614ae8a140e9cec4
SHA512 d22477daf5597d2c7d5e5432a29393eb1e1ccaf5f1f30dd39e910552cdd65dde206121dc0ad42c58f71c74975d66c3b48335a5e5963529110eed8c6d7e184bb5

C:\Users\Admin\svhost.exe

MD5 6ef26da1b60b7ded9865e30a03062796
SHA1 69022e9ac2104e3d0d61d916e485b39e0fdf9868
SHA256 eb2ecf4e69565b73a8d8e0e482720d4cd53da84a12a4bbc3614ae8a140e9cec4
SHA512 d22477daf5597d2c7d5e5432a29393eb1e1ccaf5f1f30dd39e910552cdd65dde206121dc0ad42c58f71c74975d66c3b48335a5e5963529110eed8c6d7e184bb5

memory/1384-142-0x0000000000B80000-0x0000000000BCA000-memory.dmp

memory/3704-143-0x0000000000000000-mapping.dmp

C:\Users\Admin\svhost.exe

MD5 6ef26da1b60b7ded9865e30a03062796
SHA1 69022e9ac2104e3d0d61d916e485b39e0fdf9868
SHA256 eb2ecf4e69565b73a8d8e0e482720d4cd53da84a12a4bbc3614ae8a140e9cec4
SHA512 d22477daf5597d2c7d5e5432a29393eb1e1ccaf5f1f30dd39e910552cdd65dde206121dc0ad42c58f71c74975d66c3b48335a5e5963529110eed8c6d7e184bb5

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\svhost.exe.log

MD5 3ca2f9e6a94c24c455ac9431a0bf479b
SHA1 a90309eec691588990609f8f8ad9b935d6f38eb2
SHA256 e84d0c64750ec6333b67eb8aef737bb21cd86c6ef6e520c6537ede13505e125e
SHA512 ba66e42b384f0d865a21d9169169a0b2bd9c62ebee68acc63a191b1a67ca16f4534f955055fc84bbc4a9cd22cec11c3c22a15df7741d99b7dec456e5cabcb0b5

memory/3704-147-0x0000000007350000-0x00000000073E2000-memory.dmp