Malware Analysis Report

2024-09-11 09:56

Sample ID 240609-lrnpsagh7t
Target c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe
SHA256 c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20
Tags
limerat rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20

Threat Level: Known bad

The file c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.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

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

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
Query Registry
T1012
System Information Discovery
T1082
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

2024-06-09 09:46

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-09 09:46

Reported

2024-06-09 09:52

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe"

Signatures

LimeRAT

rat limerat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.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 pastebin.com N/A N/A
N/A 0.tcp.sa.ngrok.io N/A N/A
N/A 0.tcp.sa.ngrok.io 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 use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe N/A
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 2852 wrote to memory of 3512 N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe C:\Windows\SysWOW64\schtasks.exe
PID 2852 wrote to memory of 3512 N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe C:\Windows\SysWOW64\schtasks.exe
PID 2852 wrote to memory of 3512 N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe C:\Windows\SysWOW64\schtasks.exe
PID 2852 wrote to memory of 532 N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe
PID 2852 wrote to memory of 532 N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe
PID 2852 wrote to memory of 532 N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe

"C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.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 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.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 104.20.4.235:443 pastebin.com tcp
US 8.8.8.8:53 0.tcp.sa.ngrok.io udp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 235.4.20.104.in-addr.arpa udp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 0.tcp.sa.ngrok.io udp
BR 18.231.93.153:13066 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:13066 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:13066 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:13066 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
BR 18.231.93.153:13066 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:13066 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:13066 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:13066 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:13066 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:13066 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:13066 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 0.tcp.sa.ngrok.io udp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp

Files

memory/2852-0-0x0000000074E3E000-0x0000000074E3F000-memory.dmp

memory/2852-1-0x0000000000F00000-0x0000000000F48000-memory.dmp

memory/2852-2-0x0000000005910000-0x00000000059AC000-memory.dmp

memory/2852-3-0x0000000074E30000-0x00000000755E0000-memory.dmp

memory/2852-4-0x00000000059F0000-0x0000000005A56000-memory.dmp

memory/2852-5-0x0000000006610000-0x0000000006BB4000-memory.dmp

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

MD5 707a6fa9d0dfc998063525e6697402b1
SHA1 e5a930dab328f46a1f7f9b25115b08a8666616e4
SHA256 c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20
SHA512 80d682e357f08fd02abfc255000cc4ba0d7b8ca705a850f78822c61fa4c7a702984ca2f8e73500dab33964a43bba7098b16e1a3ad7bb9375f34b698377b878f1

memory/2852-15-0x0000000074E30000-0x00000000755E0000-memory.dmp

memory/532-16-0x0000000074E30000-0x00000000755E0000-memory.dmp

memory/532-18-0x0000000074E30000-0x00000000755E0000-memory.dmp

memory/532-17-0x0000000074E30000-0x00000000755E0000-memory.dmp

memory/532-19-0x0000000074E30000-0x00000000755E0000-memory.dmp

memory/532-20-0x0000000074E30000-0x00000000755E0000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-09 09:46

Reported

2024-06-09 09:52

Platform

win7-20240508-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.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\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.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
N/A 0.tcp.sa.ngrok.io 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 use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe N/A
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 1936 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe C:\Windows\SysWOW64\schtasks.exe
PID 1936 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe C:\Windows\SysWOW64\schtasks.exe
PID 1936 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe C:\Windows\SysWOW64\schtasks.exe
PID 1936 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe C:\Windows\SysWOW64\schtasks.exe
PID 1936 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe
PID 1936 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe
PID 1936 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe
PID 1936 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.exe

"C:\Users\Admin\AppData\Local\Temp\c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20.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 104.20.4.235:443 pastebin.com tcp
US 8.8.8.8:53 0.tcp.sa.ngrok.io udp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:13066 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 0.tcp.sa.ngrok.io udp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:13066 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 0.tcp.sa.ngrok.io udp
BR 18.229.248.167:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.248.167:13066 0.tcp.sa.ngrok.io tcp
BR 18.229.248.167:13066 0.tcp.sa.ngrok.io tcp

Files

memory/1936-0-0x00000000743BE000-0x00000000743BF000-memory.dmp

memory/1936-1-0x0000000000E40000-0x0000000000E88000-memory.dmp

memory/1936-2-0x00000000743B0000-0x0000000074A9E000-memory.dmp

memory/1936-3-0x00000000743B0000-0x0000000074A9E000-memory.dmp

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

MD5 707a6fa9d0dfc998063525e6697402b1
SHA1 e5a930dab328f46a1f7f9b25115b08a8666616e4
SHA256 c9bc1fdfd47f19c1af3631334c0687809cb0d4f5307af3037823212539d81c20
SHA512 80d682e357f08fd02abfc255000cc4ba0d7b8ca705a850f78822c61fa4c7a702984ca2f8e73500dab33964a43bba7098b16e1a3ad7bb9375f34b698377b878f1

memory/2496-14-0x0000000000820000-0x0000000000868000-memory.dmp

memory/2496-16-0x00000000743B0000-0x0000000074A9E000-memory.dmp

memory/1936-15-0x00000000743B0000-0x0000000074A9E000-memory.dmp

memory/2496-17-0x00000000743B0000-0x0000000074A9E000-memory.dmp

memory/2496-18-0x00000000743B0000-0x0000000074A9E000-memory.dmp