Malware Analysis Report

2024-09-11 10:01

Sample ID 240505-btzjysac5x
Target 71e04dd1a7ad7068fa236cb7aeb647b3.bin
SHA256 1a0efc08cedb1744a87e760e50dfca6915987193dd9911168863b7f6a19acf32
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

1a0efc08cedb1744a87e760e50dfca6915987193dd9911168863b7f6a19acf32

Threat Level: Known bad

The file 71e04dd1a7ad7068fa236cb7aeb647b3.bin was found to be: Known bad.

Malicious Activity Summary

limerat rat

Limerat family

LimeRAT

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Legitimate hosting services abused for malware hosting/C2

Enumerates physical storage devices

Unsigned PE

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

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

2024-05-05 01:26

Signatures

Limerat family

limerat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-05 01:26

Reported

2024-05-05 01:29

Platform

win7-20240221-en

Max time kernel

149s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe"

Signatures

LimeRAT

rat limerat

Executes dropped EXE

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.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 behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2188 wrote to memory of 2616 N/A C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe C:\Windows\SysWOW64\schtasks.exe
PID 2188 wrote to memory of 2616 N/A C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe C:\Windows\SysWOW64\schtasks.exe
PID 2188 wrote to memory of 2616 N/A C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe C:\Windows\SysWOW64\schtasks.exe
PID 2188 wrote to memory of 2616 N/A C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe C:\Windows\SysWOW64\schtasks.exe
PID 2188 wrote to memory of 2324 N/A C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe C:\Users\Admin\AppData\Local\Temp\System\RegScanner.exe
PID 2188 wrote to memory of 2324 N/A C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe C:\Users\Admin\AppData\Local\Temp\System\RegScanner.exe
PID 2188 wrote to memory of 2324 N/A C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe C:\Users\Admin\AppData\Local\Temp\System\RegScanner.exe
PID 2188 wrote to memory of 2324 N/A C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe C:\Users\Admin\AppData\Local\Temp\System\RegScanner.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe

"C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe"

C:\Windows\SysWOW64\schtasks.exe

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 pastebin.com udp
US 104.20.4.235:443 pastebin.com tcp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp

Files

memory/2188-0-0x000000007439E000-0x000000007439F000-memory.dmp

memory/2188-1-0x00000000012C0000-0x00000000012CE000-memory.dmp

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

MD5 71e04dd1a7ad7068fa236cb7aeb647b3
SHA1 83fdc084031f6ffb1fb3488166100628e1656c65
SHA256 2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e
SHA512 0ade5a8a32375a8600078225f81d6f3c40dc333ec0dfbf765f3c4260258a98a7ff0f2d7f6e78122195d49b0241176639b165967fc873270606a164c56c4c5f11

memory/2324-12-0x00000000002A0000-0x00000000002AE000-memory.dmp

memory/2188-13-0x0000000074390000-0x0000000074A7E000-memory.dmp

memory/2324-14-0x0000000074390000-0x0000000074A7E000-memory.dmp

memory/2324-15-0x0000000074390000-0x0000000074A7E000-memory.dmp

memory/2324-16-0x0000000074390000-0x0000000074A7E000-memory.dmp

memory/2324-17-0x0000000074390000-0x0000000074A7E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-05 01:26

Reported

2024-05-05 01:29

Platform

win10v2004-20240419-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe"

Signatures

LimeRAT

rat limerat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\System\RegScanner.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 behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4572 wrote to memory of 3384 N/A C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe C:\Windows\SysWOW64\schtasks.exe
PID 4572 wrote to memory of 3384 N/A C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe C:\Windows\SysWOW64\schtasks.exe
PID 4572 wrote to memory of 3384 N/A C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe C:\Windows\SysWOW64\schtasks.exe
PID 4572 wrote to memory of 2976 N/A C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe C:\Users\Admin\AppData\Local\Temp\System\RegScanner.exe
PID 4572 wrote to memory of 2976 N/A C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe C:\Users\Admin\AppData\Local\Temp\System\RegScanner.exe
PID 4572 wrote to memory of 2976 N/A C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe C:\Users\Admin\AppData\Local\Temp\System\RegScanner.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe

"C:\Users\Admin\AppData\Local\Temp\2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e.exe"

C:\Windows\SysWOW64\schtasks.exe

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 pastebin.com udp
US 104.20.3.235:443 pastebin.com tcp
NL 185.107.56.48:443 tcp
US 8.8.8.8:53 235.3.20.104.in-addr.arpa udp
US 8.8.8.8:53 48.56.107.185.in-addr.arpa udp
NL 185.107.56.48:443 tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 14.251.17.2.in-addr.arpa udp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 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
US 8.8.8.8:53 138.201.86.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp
NL 185.107.56.48:443 tcp

Files

memory/4572-0-0x000000007491E000-0x000000007491F000-memory.dmp

memory/4572-1-0x0000000000770000-0x000000000077E000-memory.dmp

memory/4572-2-0x00000000051B0000-0x000000000524C000-memory.dmp

memory/4572-3-0x0000000005110000-0x0000000005176000-memory.dmp

memory/4572-4-0x0000000074910000-0x00000000750C0000-memory.dmp

memory/4572-5-0x0000000005E30000-0x00000000063D4000-memory.dmp

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

MD5 71e04dd1a7ad7068fa236cb7aeb647b3
SHA1 83fdc084031f6ffb1fb3488166100628e1656c65
SHA256 2889c2834599b95a91d0b4136ed7df199d62e47061dd01d18922d7a7fb15954e
SHA512 0ade5a8a32375a8600078225f81d6f3c40dc333ec0dfbf765f3c4260258a98a7ff0f2d7f6e78122195d49b0241176639b165967fc873270606a164c56c4c5f11

memory/4572-15-0x0000000074910000-0x00000000750C0000-memory.dmp

memory/2976-16-0x0000000074910000-0x00000000750C0000-memory.dmp

memory/2976-17-0x0000000074910000-0x00000000750C0000-memory.dmp

memory/2976-18-0x0000000006E20000-0x0000000006EB2000-memory.dmp

memory/2976-19-0x0000000074910000-0x00000000750C0000-memory.dmp

memory/2976-20-0x0000000074910000-0x00000000750C0000-memory.dmp