Malware Analysis Report

2024-09-11 10:21

Sample ID 240611-chlpds1bjj
Target 44fa1f9ac8f550bdf35405c89d1509f3.bin
SHA256 63ab3ed97e8678fc1e018d9a82d94d70ca8e0aa575999dfe9c5bff6d6e32be8b
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

63ab3ed97e8678fc1e018d9a82d94d70ca8e0aa575999dfe9c5bff6d6e32be8b

Threat Level: Known bad

The file 44fa1f9ac8f550bdf35405c89d1509f3.bin was found to be: Known bad.

Malicious Activity Summary

limerat rat

LimeRAT

Checks computer location settings

Drops startup file

Executes dropped EXE

Loads dropped DLL

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Creates scheduled task(s)

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

2024-06-11 02:04

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-11 02:04

Reported

2024-06-11 02:07

Platform

win7-20240221-en

Max time kernel

148s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe"

Signatures

LimeRAT

rat limerat

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Plugin.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Plugin.dll.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Plugin.dlls.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.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

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\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.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 2676 N/A C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe C:\Windows\SysWOW64\schtasks.exe
PID 1936 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe C:\Windows\SysWOW64\schtasks.exe
PID 1936 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe C:\Windows\SysWOW64\schtasks.exe
PID 1936 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe C:\Windows\SysWOW64\schtasks.exe
PID 1936 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe
PID 1936 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe
PID 1936 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe
PID 1936 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe

"C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.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 54.94.248.37:15257 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 0.tcp.sa.ngrok.io udp
BR 18.229.146.63:15257 0.tcp.sa.ngrok.io tcp

Files

memory/1936-0-0x00000000745EE000-0x00000000745EF000-memory.dmp

memory/1936-1-0x0000000000870000-0x00000000008C0000-memory.dmp

memory/1936-2-0x00000000745E0000-0x0000000074CCE000-memory.dmp

memory/1936-3-0x00000000745E0000-0x0000000074CCE000-memory.dmp

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

MD5 44fa1f9ac8f550bdf35405c89d1509f3
SHA1 6cd17ba8d06ef044fe6d788574a73d2522c3ae8a
SHA256 c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513
SHA512 563f6300815482ce825eb2760bf63cbbdd3327b093a6d2648ffbc25365a9b9d62bd79564d106114a35ce188074615281c5487db65e0c4aa9764d7f7c226eb53a

memory/1936-15-0x00000000745E0000-0x0000000074CCE000-memory.dmp

memory/2452-14-0x00000000012E0000-0x0000000001330000-memory.dmp

memory/2452-16-0x00000000745E0000-0x0000000074CCE000-memory.dmp

memory/2452-18-0x00000000745E0000-0x0000000074CCE000-memory.dmp

memory/2452-17-0x00000000745E0000-0x0000000074CCE000-memory.dmp

memory/2452-19-0x00000000745E0000-0x0000000074CCE000-memory.dmp

memory/2452-20-0x00000000745E0000-0x0000000074CCE000-memory.dmp

memory/2452-21-0x00000000745E0000-0x0000000074CCE000-memory.dmp

memory/2452-22-0x0000000000C20000-0x0000000000C3E000-memory.dmp

memory/2452-24-0x0000000000540000-0x000000000054E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-11 02:04

Reported

2024-06-11 02:07

Platform

win10v2004-20240426-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe"

Signatures

LimeRAT

rat limerat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Plugin.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Plugin.dll.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.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

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\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.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 5032 wrote to memory of 4660 N/A C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe C:\Windows\SysWOW64\schtasks.exe
PID 5032 wrote to memory of 4660 N/A C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe C:\Windows\SysWOW64\schtasks.exe
PID 5032 wrote to memory of 4660 N/A C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe C:\Windows\SysWOW64\schtasks.exe
PID 5032 wrote to memory of 1808 N/A C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe
PID 5032 wrote to memory of 1808 N/A C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe
PID 5032 wrote to memory of 1808 N/A C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.exe

"C:\Users\Admin\AppData\Local\Temp\c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513.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 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 10.160.77.104.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 pastebin.com udp
US 104.20.4.235:443 pastebin.com tcp
US 8.8.8.8:53 235.4.20.104.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.sa.ngrok.io udp
BR 18.231.93.153:15257 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 153.93.231.18.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 6.160.77.104.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.sa.ngrok.io udp
BR 18.231.93.153:15257 0.tcp.sa.ngrok.io tcp

Files

memory/5032-0-0x00000000746AE000-0x00000000746AF000-memory.dmp

memory/5032-1-0x0000000000360000-0x00000000003B0000-memory.dmp

memory/5032-2-0x0000000004E70000-0x0000000004F0C000-memory.dmp

memory/5032-3-0x00000000746A0000-0x0000000074E50000-memory.dmp

memory/5032-4-0x00000000746A0000-0x0000000074E50000-memory.dmp

memory/5032-5-0x0000000004DE0000-0x0000000004E46000-memory.dmp

memory/5032-6-0x0000000005570000-0x0000000005602000-memory.dmp

memory/5032-7-0x0000000005BC0000-0x0000000006164000-memory.dmp

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

MD5 44fa1f9ac8f550bdf35405c89d1509f3
SHA1 6cd17ba8d06ef044fe6d788574a73d2522c3ae8a
SHA256 c9101aac915418735b74d5120cae0cdef803555d9a8399cf9ee5457d5c790513
SHA512 563f6300815482ce825eb2760bf63cbbdd3327b093a6d2648ffbc25365a9b9d62bd79564d106114a35ce188074615281c5487db65e0c4aa9764d7f7c226eb53a

memory/5032-17-0x00000000746A0000-0x0000000074E50000-memory.dmp

memory/1808-18-0x00000000746A0000-0x0000000074E50000-memory.dmp

memory/1808-19-0x00000000746A0000-0x0000000074E50000-memory.dmp

memory/1808-20-0x00000000746A0000-0x0000000074E50000-memory.dmp

memory/1808-21-0x00000000746A0000-0x0000000074E50000-memory.dmp

memory/1808-22-0x00000000070A0000-0x00000000070BE000-memory.dmp

memory/1808-23-0x00000000746A0000-0x0000000074E50000-memory.dmp

memory/1808-24-0x0000000000BD0000-0x0000000000BDE000-memory.dmp

memory/1808-25-0x0000000007670000-0x0000000007B9C000-memory.dmp