Malware Analysis Report

2024-09-11 10:19

Sample ID 240608-13xjdshb21
Target 537A30BC79E3D7BEB31DA053F09D6F67.exe
SHA256 ceca4ad3a264bb47c499b1fd9ac2d89e70ecda197164742be6e3c57d30a3bde7
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

ceca4ad3a264bb47c499b1fd9ac2d89e70ecda197164742be6e3c57d30a3bde7

Threat Level: Known bad

The file 537A30BC79E3D7BEB31DA053F09D6F67.exe was found to be: Known bad.

Malicious Activity Summary

limerat rat

LimeRAT

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

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

2024-06-08 22:11

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 22:11

Reported

2024-06-08 22:13

Platform

win7-20240221-en

Max time kernel

150s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe"

Signatures

LimeRAT

rat limerat

Executes dropped EXE

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.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
N/A 0.tcp.sa.ngrok.io 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 behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1176 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe C:\Windows\SysWOW64\schtasks.exe
PID 1176 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe C:\Windows\SysWOW64\schtasks.exe
PID 1176 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe C:\Windows\SysWOW64\schtasks.exe
PID 1176 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe C:\Windows\SysWOW64\schtasks.exe
PID 1176 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe
PID 1176 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe
PID 1176 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe
PID 1176 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe

Processes

C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe

"C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe"

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe'"

C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe

"C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 pastebin.com udp
US 172.67.19.24:443 pastebin.com tcp
US 8.8.8.8:53 0.tcp.sa.ngrok.io udp
BR 18.229.248.167:15352 0.tcp.sa.ngrok.io tcp
BR 18.229.248.167:15352 0.tcp.sa.ngrok.io tcp

Files

memory/1176-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

memory/1176-1-0x0000000000F40000-0x0000000000F84000-memory.dmp

memory/1176-2-0x0000000074A00000-0x00000000750EE000-memory.dmp

\Users\Admin\AppData\Local\Temp\System\Plugin.exe

MD5 537a30bc79e3d7beb31da053f09d6f67
SHA1 d9dac6725bf93e9c700ab76601be7afd76a35193
SHA256 ceca4ad3a264bb47c499b1fd9ac2d89e70ecda197164742be6e3c57d30a3bde7
SHA512 987aad35c946117559411589cc4ea0cfd1d7fdced71f0ab71e520f0ace33224e71a938fd1b9d5bd9c60989e05594d78cbd2953d510b68e36204955019c26b032

memory/2264-13-0x00000000000A0000-0x00000000000E4000-memory.dmp

memory/2264-14-0x0000000074A00000-0x00000000750EE000-memory.dmp

memory/2264-15-0x0000000074A00000-0x00000000750EE000-memory.dmp

memory/1176-16-0x0000000074A00000-0x00000000750EE000-memory.dmp

memory/2264-17-0x0000000074A00000-0x00000000750EE000-memory.dmp

memory/2264-18-0x0000000074A00000-0x00000000750EE000-memory.dmp

memory/2264-19-0x0000000000510000-0x000000000052E000-memory.dmp

memory/2264-20-0x0000000000370000-0x000000000037E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 22:11

Reported

2024-06-08 22:13

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe"

Signatures

LimeRAT

rat limerat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\System\Plugin.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 0.tcp.sa.ngrok.io 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 behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1812 wrote to memory of 3700 N/A C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe C:\Windows\SysWOW64\schtasks.exe
PID 1812 wrote to memory of 3700 N/A C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe C:\Windows\SysWOW64\schtasks.exe
PID 1812 wrote to memory of 3700 N/A C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe C:\Windows\SysWOW64\schtasks.exe
PID 1812 wrote to memory of 1468 N/A C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe
PID 1812 wrote to memory of 1468 N/A C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe
PID 1812 wrote to memory of 1468 N/A C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe

Processes

C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe

"C:\Users\Admin\AppData\Local\Temp\537A30BC79E3D7BEB31DA053F09D6F67.exe"

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe'"

C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe

"C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 pastebin.com udp
US 172.67.19.24:443 pastebin.com tcp
US 8.8.8.8:53 0.tcp.sa.ngrok.io udp
BR 18.231.93.153:15352 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 24.19.67.172.in-addr.arpa udp
US 8.8.8.8:53 153.93.231.18.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
BR 18.231.93.153:15352 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 233.17.178.52.in-addr.arpa udp

Files

memory/1812-0-0x000000007508E000-0x000000007508F000-memory.dmp

memory/1812-1-0x0000000000800000-0x0000000000844000-memory.dmp

memory/1812-3-0x0000000075080000-0x0000000075830000-memory.dmp

memory/1812-2-0x0000000005300000-0x000000000539C000-memory.dmp

memory/1812-4-0x00000000051E0000-0x0000000005246000-memory.dmp

memory/1812-5-0x0000000006050000-0x00000000065F4000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe

MD5 537a30bc79e3d7beb31da053f09d6f67
SHA1 d9dac6725bf93e9c700ab76601be7afd76a35193
SHA256 ceca4ad3a264bb47c499b1fd9ac2d89e70ecda197164742be6e3c57d30a3bde7
SHA512 987aad35c946117559411589cc4ea0cfd1d7fdced71f0ab71e520f0ace33224e71a938fd1b9d5bd9c60989e05594d78cbd2953d510b68e36204955019c26b032

memory/1812-15-0x0000000075080000-0x0000000075830000-memory.dmp

memory/1468-16-0x0000000075080000-0x0000000075830000-memory.dmp

memory/1468-17-0x0000000075080000-0x0000000075830000-memory.dmp

memory/1468-18-0x0000000007830000-0x00000000078C2000-memory.dmp

memory/1468-19-0x0000000075080000-0x0000000075830000-memory.dmp

memory/1468-20-0x0000000007650000-0x000000000766E000-memory.dmp

memory/1468-21-0x0000000075080000-0x0000000075830000-memory.dmp

memory/1468-22-0x00000000076F0000-0x00000000076FE000-memory.dmp

memory/1468-23-0x0000000007F00000-0x000000000842C000-memory.dmp