Malware Analysis Report

2024-09-11 10:04

Sample ID 240328-rhvdvsgb5z
Target New-Client.exe
SHA256 edf986f6d02ea68efcece9629ef76df6caeef2110cc5426f4dd1e61971259325
Tags
limerat rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

edf986f6d02ea68efcece9629ef76df6caeef2110cc5426f4dd1e61971259325

Threat Level: Known bad

The file New-Client.exe was found to be: Known bad.

Malicious Activity Summary

limerat rat

Limerat family

LimeRAT

Checks computer location settings

Executes dropped EXE

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Enumerates physical storage devices

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Scheduled Task/Job
T1053
Persistence
TA0003
Scheduled Task/Job
T1053
Privilege Escalation
TA0004
Scheduled Task/Job
T1053
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Query Registry
T1012
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Web Service
T1102
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-03-28 14:12

Signatures

Limerat family

limerat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-28 14:12

Reported

2024-03-28 14:14

Platform

win10-20240221-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\New-Client.exe"

Signatures

LimeRAT

rat limerat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\fasdasfdfsdfsda\fsds.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A

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\Roaming\fasdasfdfsdfsda\fsds.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\fasdasfdfsdfsda\fsds.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 216 wrote to memory of 3008 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Windows\SysWOW64\schtasks.exe
PID 216 wrote to memory of 3008 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Windows\SysWOW64\schtasks.exe
PID 216 wrote to memory of 3008 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Windows\SysWOW64\schtasks.exe
PID 216 wrote to memory of 1520 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Users\Admin\AppData\Roaming\fasdasfdfsdfsda\fsds.exe
PID 216 wrote to memory of 1520 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Users\Admin\AppData\Roaming\fasdasfdfsdfsda\fsds.exe
PID 216 wrote to memory of 1520 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Users\Admin\AppData\Roaming\fasdasfdfsdfsda\fsds.exe

Processes

C:\Users\Admin\AppData\Local\Temp\New-Client.exe

"C:\Users\Admin\AppData\Local\Temp\New-Client.exe"

C:\Windows\SysWOW64\schtasks.exe

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

C:\Users\Admin\AppData\Roaming\fasdasfdfsdfsda\fsds.exe

"C:\Users\Admin\AppData\Roaming\fasdasfdfsdfsda\fsds.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 8.8.8.8:53 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.0.8.0.8.0.8.0.ip6.arpa udp
US 8.8.8.8:53 170.34.67.172.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 85.65.42.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

memory/216-1-0x0000000073E60000-0x000000007454E000-memory.dmp

memory/216-0-0x00000000001F0000-0x00000000001FC000-memory.dmp

memory/216-2-0x0000000004A20000-0x0000000004ABC000-memory.dmp

memory/216-3-0x0000000004AC0000-0x0000000004B26000-memory.dmp

memory/216-4-0x0000000004CB0000-0x0000000004CC0000-memory.dmp

memory/216-5-0x0000000005600000-0x0000000005AFE000-memory.dmp

C:\Users\Admin\AppData\Roaming\fasdasfdfsdfsda\fsds.exe

MD5 0cdc2ae52c17aa3bbba1bdd58b7e9901
SHA1 9e6c1b392536c34f1434c61dbd9684c52c7c834a
SHA256 edf986f6d02ea68efcece9629ef76df6caeef2110cc5426f4dd1e61971259325
SHA512 e07ee332542237760ca54531a50ecab20f789fac03e372672710ca792ab5b83f30dd0a08b50c98bb55586a3b9d80bc5c3de96b5e36e08aa1803d55c781dc448d

memory/1520-13-0x0000000073E60000-0x000000007454E000-memory.dmp

memory/216-12-0x0000000073E60000-0x000000007454E000-memory.dmp

memory/1520-14-0x00000000028E0000-0x00000000028F0000-memory.dmp

memory/1520-15-0x0000000073E60000-0x000000007454E000-memory.dmp

memory/1520-16-0x00000000028E0000-0x00000000028F0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-28 14:12

Reported

2024-03-28 14:14

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\New-Client.exe"

Signatures

LimeRAT

rat limerat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\New-Client.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\fasdasfdfsdfsda\fsds.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A

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\Roaming\fasdasfdfsdfsda\fsds.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\fasdasfdfsdfsda\fsds.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4280 wrote to memory of 3932 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Windows\SysWOW64\schtasks.exe
PID 4280 wrote to memory of 3932 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Windows\SysWOW64\schtasks.exe
PID 4280 wrote to memory of 3932 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Windows\SysWOW64\schtasks.exe
PID 4280 wrote to memory of 2284 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Users\Admin\AppData\Roaming\fasdasfdfsdfsda\fsds.exe
PID 4280 wrote to memory of 2284 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Users\Admin\AppData\Roaming\fasdasfdfsdfsda\fsds.exe
PID 4280 wrote to memory of 2284 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Users\Admin\AppData\Roaming\fasdasfdfsdfsda\fsds.exe

Processes

C:\Users\Admin\AppData\Local\Temp\New-Client.exe

"C:\Users\Admin\AppData\Local\Temp\New-Client.exe"

C:\Windows\SysWOW64\schtasks.exe

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

C:\Users\Admin\AppData\Roaming\fasdasfdfsdfsda\fsds.exe

"C:\Users\Admin\AppData\Roaming\fasdasfdfsdfsda\fsds.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 40.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 pastebin.com udp
US 104.20.67.143:443 pastebin.com tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 143.67.20.104.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 33.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 219.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 73.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/4280-0-0x0000000000A90000-0x0000000000A9C000-memory.dmp

memory/4280-1-0x0000000074850000-0x0000000075000000-memory.dmp

memory/4280-2-0x0000000005420000-0x00000000054BC000-memory.dmp

memory/4280-3-0x00000000054D0000-0x0000000005536000-memory.dmp

memory/4280-4-0x0000000005670000-0x0000000005680000-memory.dmp

memory/4280-5-0x00000000060F0000-0x0000000006694000-memory.dmp

C:\Users\Admin\AppData\Roaming\fasdasfdfsdfsda\fsds.exe

MD5 0cdc2ae52c17aa3bbba1bdd58b7e9901
SHA1 9e6c1b392536c34f1434c61dbd9684c52c7c834a
SHA256 edf986f6d02ea68efcece9629ef76df6caeef2110cc5426f4dd1e61971259325
SHA512 e07ee332542237760ca54531a50ecab20f789fac03e372672710ca792ab5b83f30dd0a08b50c98bb55586a3b9d80bc5c3de96b5e36e08aa1803d55c781dc448d

memory/2284-16-0x0000000074850000-0x0000000075000000-memory.dmp

memory/4280-15-0x0000000074850000-0x0000000075000000-memory.dmp

memory/2284-17-0x00000000054F0000-0x0000000005500000-memory.dmp

memory/2284-18-0x0000000074850000-0x0000000075000000-memory.dmp

memory/2284-19-0x00000000054F0000-0x0000000005500000-memory.dmp