Malware Analysis Report

2024-09-11 10:04

Sample ID 240419-v8d2cabf8y
Target 112c139afbe6ea09fdf218be415277aee087b86e7d15b4a08015da2a27b0d3e7
SHA256 112c139afbe6ea09fdf218be415277aee087b86e7d15b4a08015da2a27b0d3e7
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

112c139afbe6ea09fdf218be415277aee087b86e7d15b4a08015da2a27b0d3e7

Threat Level: Known bad

The file 112c139afbe6ea09fdf218be415277aee087b86e7d15b4a08015da2a27b0d3e7 was found to be: Known bad.

Malicious Activity Summary

limerat rat

Limerat family

LimeRAT

Loads dropped DLL

Executes dropped EXE

Checks computer location settings

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

2024-04-19 17:39

Signatures

Limerat family

limerat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-19 17:39

Reported

2024-04-19 17:42

Platform

win7-20240221-en

Max time kernel

149s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe"

Signatures

LimeRAT

rat limerat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.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\Roaming\Service Windows\MSIbuilder.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2088 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe C:\Windows\SysWOW64\schtasks.exe
PID 2088 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe C:\Windows\SysWOW64\schtasks.exe
PID 2088 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe C:\Windows\SysWOW64\schtasks.exe
PID 2088 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe C:\Windows\SysWOW64\schtasks.exe
PID 2088 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe
PID 2088 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe
PID 2088 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe
PID 2088 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe

Processes

C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe

"C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe"

C:\Windows\SysWOW64\schtasks.exe

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

C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe

"C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.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 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 0.tcp.sa.ngrok.io udp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 0.tcp.sa.ngrok.io udp
BR 18.229.146.63:19119 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:19119 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:19119 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:19119 0.tcp.sa.ngrok.io tcp
BR 18.229.146.63:19119 tcp

Files

memory/2088-0-0x0000000000060000-0x000000000006C000-memory.dmp

memory/2088-1-0x0000000074060000-0x000000007474E000-memory.dmp

memory/2088-3-0x0000000004C50000-0x0000000004C90000-memory.dmp

\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe

MD5 8e1bb22b17551346730179e6616eb42e
SHA1 7d2482fd93f0824e4353522c68c0fd39af445fc0
SHA256 9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe
SHA512 ec3a09f32393ce91486342712e200d4d0e432f0df90a1e58dd8251281c5257372a31c50db1b5a3a0fb552fa179199d88359c07b63d6b896188dfe32cb5d18ee6

memory/2708-14-0x0000000074060000-0x000000007474E000-memory.dmp

memory/2708-13-0x0000000001250000-0x000000000125C000-memory.dmp

memory/2088-15-0x0000000074060000-0x000000007474E000-memory.dmp

memory/2708-16-0x0000000004D60000-0x0000000004DA0000-memory.dmp

memory/2708-17-0x0000000074060000-0x000000007474E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-19 17:39

Reported

2024-04-19 17:41

Platform

win10v2004-20240412-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe"

Signatures

LimeRAT

rat limerat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A 0.tcp.sa.ngrok.io N/A N/A
N/A 0.tcp.sa.ngrok.io N/A N/A
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 use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1612 wrote to memory of 3720 N/A C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe C:\Windows\SysWOW64\schtasks.exe
PID 1612 wrote to memory of 3720 N/A C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe C:\Windows\SysWOW64\schtasks.exe
PID 1612 wrote to memory of 3720 N/A C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe C:\Windows\SysWOW64\schtasks.exe
PID 1612 wrote to memory of 4936 N/A C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe
PID 1612 wrote to memory of 4936 N/A C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe
PID 1612 wrote to memory of 4936 N/A C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe

Processes

C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe

"C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe"

C:\Windows\SysWOW64\schtasks.exe

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

C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe

"C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe"

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.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
US 8.8.8.8:53 24.19.67.172.in-addr.arpa udp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 21.114.53.23.in-addr.arpa udp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 65.139.73.23.in-addr.arpa udp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 147.108.222.173.in-addr.arpa udp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.sa.ngrok.io udp
BR 18.231.93.153:19119 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:19119 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:19119 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:19119 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 98.56.20.217.in-addr.arpa udp
BR 18.231.93.153:19119 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:19119 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:19119 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
BR 18.231.93.153:19119 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:19119 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:19119 0.tcp.sa.ngrok.io tcp
BR 18.231.93.153:19119 0.tcp.sa.ngrok.io tcp
US 8.8.8.8:53 0.tcp.sa.ngrok.io udp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp
BR 18.228.115.60:19119 0.tcp.sa.ngrok.io tcp

Files

memory/1612-1-0x0000000075040000-0x00000000757F0000-memory.dmp

memory/1612-0-0x00000000001C0000-0x00000000001CC000-memory.dmp

memory/1612-2-0x0000000004B70000-0x0000000004C0C000-memory.dmp

memory/1612-3-0x0000000004C60000-0x0000000004CC6000-memory.dmp

memory/1612-4-0x0000000004E20000-0x0000000004E30000-memory.dmp

memory/1612-5-0x0000000005960000-0x0000000005F04000-memory.dmp

C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe

MD5 8e1bb22b17551346730179e6616eb42e
SHA1 7d2482fd93f0824e4353522c68c0fd39af445fc0
SHA256 9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe
SHA512 ec3a09f32393ce91486342712e200d4d0e432f0df90a1e58dd8251281c5257372a31c50db1b5a3a0fb552fa179199d88359c07b63d6b896188dfe32cb5d18ee6

memory/1612-15-0x0000000075040000-0x00000000757F0000-memory.dmp

memory/4936-16-0x0000000075040000-0x00000000757F0000-memory.dmp

memory/4936-17-0x0000000005240000-0x0000000005250000-memory.dmp

memory/4936-18-0x0000000075040000-0x00000000757F0000-memory.dmp

memory/4936-19-0x0000000005240000-0x0000000005250000-memory.dmp