Malware Analysis Report

2024-09-11 10:01

Sample ID 240501-vg29vsdh58
Target 55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe
SHA256 55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54
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

55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54

Threat Level: Known bad

The file 55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe was found to be: Known bad.

Malicious Activity Summary

limerat rat

Limerat family

LimeRAT

Checks computer location settings

Loads dropped DLL

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 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

2024-05-01 16:58

Signatures

Limerat family

limerat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-01 16:58

Reported

2024-05-01 17:00

Platform

win7-20240221-en

Max time kernel

112s

Max time network

117s

Command Line

"C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe"

Signatures

LimeRAT

rat limerat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.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 use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 640 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe C:\Windows\SysWOW64\schtasks.exe
PID 640 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe C:\Windows\SysWOW64\schtasks.exe
PID 640 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe C:\Windows\SysWOW64\schtasks.exe
PID 640 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe C:\Windows\SysWOW64\schtasks.exe
PID 640 wrote to memory of 2488 N/A C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe
PID 640 wrote to memory of 2488 N/A C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe
PID 640 wrote to memory of 2488 N/A C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe
PID 640 wrote to memory of 2488 N/A C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe

Processes

C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe

"C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe"

C:\Windows\SysWOW64\schtasks.exe

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

C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe

"C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 pastebin.com udp
US 172.67.19.24:443 pastebin.com tcp
N/A 10.0.2.4:8989 tcp
N/A 10.0.2.4:8989 tcp
N/A 10.0.2.4:8989 tcp
N/A 10.0.2.4:8989 tcp
N/A 10.0.2.4:8989 tcp

Files

memory/640-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

memory/640-1-0x0000000000A60000-0x0000000000A6C000-memory.dmp

\Users\Admin\AppData\Roaming\holidays\Wservices.exe

MD5 5911bd4ce6a3041d3d0e106d2604cc78
SHA1 3402dc39379f9e2c6c09d7bd903a0ffd6dc087e7
SHA256 55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54
SHA512 ea7c81849b0d2077bbe3fe88f8e5eaeb093f83e00c90f0b9d5b96d26387a052ff7074ad8e6bbd2bce3fd3867994b54acb9df9dd206ad2015a953c7e213a48897

memory/2488-12-0x0000000000D20000-0x0000000000D2C000-memory.dmp

memory/640-13-0x0000000074A00000-0x00000000750EE000-memory.dmp

memory/2488-14-0x0000000074A00000-0x00000000750EE000-memory.dmp

memory/640-15-0x0000000074A00000-0x00000000750EE000-memory.dmp

memory/2488-16-0x0000000074A00000-0x00000000750EE000-memory.dmp

memory/2488-17-0x0000000074A00000-0x00000000750EE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-01 16:58

Reported

2024-05-01 17:01

Platform

win10v2004-20240419-en

Max time kernel

148s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.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\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\holidays\Wservices.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 use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3772 wrote to memory of 2068 N/A C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe C:\Windows\SysWOW64\schtasks.exe
PID 3772 wrote to memory of 2068 N/A C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe C:\Windows\SysWOW64\schtasks.exe
PID 3772 wrote to memory of 2068 N/A C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe C:\Windows\SysWOW64\schtasks.exe
PID 3772 wrote to memory of 1784 N/A C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe
PID 3772 wrote to memory of 1784 N/A C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe
PID 3772 wrote to memory of 1784 N/A C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe

Processes

C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe

"C:\Users\Admin\AppData\Local\Temp\55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54.exe"

C:\Windows\SysWOW64\schtasks.exe

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

C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe

"C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
NL 23.62.61.155:443 www.bing.com tcp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 155.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 159.113.53.23.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 pastebin.com udp
US 172.67.19.24:443 pastebin.com tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 24.19.67.172.in-addr.arpa udp
N/A 10.0.2.4:8989 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
N/A 10.0.2.4:8989 tcp
N/A 10.0.2.4:8989 tcp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 14.251.17.2.in-addr.arpa udp
N/A 10.0.2.4:8989 tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
N/A 10.0.2.4:8989 tcp
N/A 10.0.2.4:8989 tcp

Files

memory/3772-0-0x00000000749DE000-0x00000000749DF000-memory.dmp

memory/3772-1-0x00000000008E0000-0x00000000008EC000-memory.dmp

memory/3772-2-0x00000000052C0000-0x000000000535C000-memory.dmp

memory/3772-3-0x0000000005360000-0x00000000053C6000-memory.dmp

memory/3772-4-0x00000000749D0000-0x0000000075180000-memory.dmp

memory/3772-5-0x0000000005F30000-0x00000000064D4000-memory.dmp

C:\Users\Admin\AppData\Roaming\holidays\Wservices.exe

MD5 5911bd4ce6a3041d3d0e106d2604cc78
SHA1 3402dc39379f9e2c6c09d7bd903a0ffd6dc087e7
SHA256 55564e31ab4a90c6114dbae25ac6c55645d6af382fb5c5ac919572f0781b2f54
SHA512 ea7c81849b0d2077bbe3fe88f8e5eaeb093f83e00c90f0b9d5b96d26387a052ff7074ad8e6bbd2bce3fd3867994b54acb9df9dd206ad2015a953c7e213a48897

memory/3772-15-0x00000000749D0000-0x0000000075180000-memory.dmp

memory/1784-16-0x00000000749D0000-0x0000000075180000-memory.dmp

memory/1784-17-0x00000000749D0000-0x0000000075180000-memory.dmp

memory/1784-18-0x00000000749D0000-0x0000000075180000-memory.dmp