Malware Analysis Report

2024-11-16 13:09

Sample ID 220608-wdsrpaebg3
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

150s

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

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 1968 set thread context of 1244 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 912 set thread context of 852 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
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 1968 wrote to memory of 1244 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1968 wrote to memory of 1244 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1968 wrote to memory of 1244 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1968 wrote to memory of 1244 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1968 wrote to memory of 1244 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1968 wrote to memory of 1244 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1968 wrote to memory of 1244 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1968 wrote to memory of 1244 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1244 wrote to memory of 516 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Windows\SysWOW64\schtasks.exe
PID 1244 wrote to memory of 516 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Windows\SysWOW64\schtasks.exe
PID 1244 wrote to memory of 516 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Windows\SysWOW64\schtasks.exe
PID 1244 wrote to memory of 516 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Windows\SysWOW64\schtasks.exe
PID 1244 wrote to memory of 912 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\svhost.exe
PID 1244 wrote to memory of 912 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\svhost.exe
PID 1244 wrote to memory of 912 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\svhost.exe
PID 1244 wrote to memory of 912 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\svhost.exe
PID 912 wrote to memory of 852 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 912 wrote to memory of 852 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 912 wrote to memory of 852 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 912 wrote to memory of 852 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 912 wrote to memory of 852 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 912 wrote to memory of 852 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 912 wrote to memory of 852 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 912 wrote to memory of 852 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 104.20.67.143:443 pastebin.com tcp
RU 80.66.79.77:4043 tcp

Files

memory/1968-54-0x00000000009A0000-0x00000000009EA000-memory.dmp

memory/1244-55-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1244-56-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1244-58-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1244-60-0x000000000040894E-mapping.dmp

memory/1244-59-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1244-62-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1244-64-0x0000000000400000-0x000000000040C000-memory.dmp

memory/516-65-0x0000000000000000-mapping.dmp

memory/1244-66-0x0000000075EF1000-0x0000000075EF3000-memory.dmp

\Users\Admin\svhost.exe

MD5 6ef26da1b60b7ded9865e30a03062796
SHA1 69022e9ac2104e3d0d61d916e485b39e0fdf9868
SHA256 eb2ecf4e69565b73a8d8e0e482720d4cd53da84a12a4bbc3614ae8a140e9cec4
SHA512 d22477daf5597d2c7d5e5432a29393eb1e1ccaf5f1f30dd39e910552cdd65dde206121dc0ad42c58f71c74975d66c3b48335a5e5963529110eed8c6d7e184bb5

memory/912-68-0x0000000000000000-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/912-71-0x0000000000170000-0x00000000001BA000-memory.dmp

memory/852-77-0x000000000040894E-mapping.dmp

C:\Users\Admin\svhost.exe

MD5 6ef26da1b60b7ded9865e30a03062796
SHA1 69022e9ac2104e3d0d61d916e485b39e0fdf9868
SHA256 eb2ecf4e69565b73a8d8e0e482720d4cd53da84a12a4bbc3614ae8a140e9cec4
SHA512 d22477daf5597d2c7d5e5432a29393eb1e1ccaf5f1f30dd39e910552cdd65dde206121dc0ad42c58f71c74975d66c3b48335a5e5963529110eed8c6d7e184bb5

memory/852-80-0x00000000000C0000-0x00000000000CC000-memory.dmp

memory/852-83-0x00000000000C0000-0x00000000000CC000-memory.dmp

memory/852-85-0x00000000000C0000-0x00000000000CC000-memory.dmp

memory/852-87-0x0000000000610000-0x000000000062C000-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

152s

Max time network

155s

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 1676 set thread context of 4588 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 368 set thread context of 4256 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 1676 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1676 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1676 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1676 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1676 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1676 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 1676 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe
PID 4588 wrote to memory of 4232 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Windows\SysWOW64\schtasks.exe
PID 4588 wrote to memory of 4232 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Windows\SysWOW64\schtasks.exe
PID 4588 wrote to memory of 4232 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Windows\SysWOW64\schtasks.exe
PID 4588 wrote to memory of 368 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\svhost.exe
PID 4588 wrote to memory of 368 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\svhost.exe
PID 4588 wrote to memory of 368 N/A C:\Users\Admin\AppData\Local\Temp\6ef26da1b60b7ded9865e30a03062796.exe C:\Users\Admin\svhost.exe
PID 368 wrote to memory of 4256 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 368 wrote to memory of 4256 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 368 wrote to memory of 4256 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 368 wrote to memory of 4256 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 368 wrote to memory of 4256 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 368 wrote to memory of 4256 N/A C:\Users\Admin\svhost.exe C:\Users\Admin\svhost.exe
PID 368 wrote to memory of 4256 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 209.197.3.8:80 tcp
US 13.107.4.50:80 tcp
FR 2.18.109.224:443 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
IE 13.69.239.73:443 tcp
US 104.18.25.243:80 tcp
NL 104.110.191.140:80 tcp
NL 104.110.191.140:80 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 106.89.54.20.in-addr.arpa udp
US 93.184.220.29:80 tcp

Files

memory/1676-130-0x0000000000700000-0x000000000074A000-memory.dmp

memory/1676-131-0x0000000005470000-0x0000000005A14000-memory.dmp

memory/4588-132-0x0000000000000000-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/4588-135-0x0000000000680000-0x000000000068C000-memory.dmp

memory/4588-136-0x0000000004C60000-0x0000000004CFC000-memory.dmp

memory/4588-137-0x0000000004D00000-0x0000000004D66000-memory.dmp

memory/4232-138-0x0000000000000000-mapping.dmp

memory/368-139-0x0000000000000000-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/368-142-0x0000000000D90000-0x0000000000DDA000-memory.dmp

memory/4256-143-0x0000000000000000-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/4256-147-0x00000000078D0000-0x0000000007962000-memory.dmp