Malware Analysis Report

2024-09-11 10:04

Sample ID 240510-lkb3eaae79
Target 5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe
SHA256 5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3
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

5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3

Threat Level: Known bad

The file 5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.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

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
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

2024-05-10 09:35

Signatures

Limerat family

limerat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-10 09:35

Reported

2024-05-10 09:37

Platform

win7-20240221-en

Max time kernel

127s

Max time network

137s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe"

Signatures

LimeRAT

rat limerat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\services.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.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\services.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\services.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2168 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe C:\Windows\SysWOW64\schtasks.exe
PID 2168 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe C:\Windows\SysWOW64\schtasks.exe
PID 2168 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe C:\Windows\SysWOW64\schtasks.exe
PID 2168 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe C:\Windows\SysWOW64\schtasks.exe
PID 2168 wrote to memory of 2680 N/A C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe C:\Users\Admin\services.exe
PID 2168 wrote to memory of 2680 N/A C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe C:\Users\Admin\services.exe
PID 2168 wrote to memory of 2680 N/A C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe C:\Users\Admin\services.exe
PID 2168 wrote to memory of 2680 N/A C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe C:\Users\Admin\services.exe

Processes

C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe

"C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe"

C:\Windows\SysWOW64\schtasks.exe

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

C:\Users\Admin\services.exe

"C:\Users\Admin\services.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 pastebin.com udp
US 104.20.3.235:443 pastebin.com tcp
US 156.238.224.215:6642 tcp
US 156.238.224.215:6642 tcp
US 156.238.224.215:6642 tcp
US 156.238.224.215:6642 tcp
US 156.238.224.215:6642 tcp
US 156.238.224.215:6642 tcp

Files

memory/2168-0-0x000000007420E000-0x000000007420F000-memory.dmp

memory/2168-1-0x00000000010A0000-0x00000000010AC000-memory.dmp

\Users\Admin\services.exe

MD5 4d404ac646564376d34cfbabbfe508ec
SHA1 ffa0d8f480c4f39037be40d1eba0a6b6f9016420
SHA256 5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3
SHA512 6eaa4a5a60bcc3162adc3b7c6247717b602f06de137283e68bd3d1b6f95d80b5b0396fcfa464d056f44b068ec59299d3dca8f10aa04546eb9ed74d8a8944edc5

memory/2680-12-0x0000000000B90000-0x0000000000B9C000-memory.dmp

memory/2168-13-0x0000000074200000-0x00000000748EE000-memory.dmp

memory/2680-14-0x0000000074200000-0x00000000748EE000-memory.dmp

memory/2680-15-0x0000000074200000-0x00000000748EE000-memory.dmp

memory/2680-16-0x0000000074200000-0x00000000748EE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-10 09:35

Reported

2024-05-10 09:37

Platform

win10v2004-20240426-en

Max time kernel

145s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe"

Signatures

LimeRAT

rat limerat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\services.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\services.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\services.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1456 wrote to memory of 4664 N/A C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe C:\Windows\SysWOW64\schtasks.exe
PID 1456 wrote to memory of 4664 N/A C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe C:\Windows\SysWOW64\schtasks.exe
PID 1456 wrote to memory of 4664 N/A C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe C:\Windows\SysWOW64\schtasks.exe
PID 1456 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe C:\Users\Admin\services.exe
PID 1456 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe C:\Users\Admin\services.exe
PID 1456 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe C:\Users\Admin\services.exe

Processes

C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe

"C:\Users\Admin\AppData\Local\Temp\5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3.exe"

C:\Windows\SysWOW64\schtasks.exe

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

C:\Users\Admin\services.exe

"C:\Users\Admin\services.exe"

Network

Country Destination Domain Proto
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 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
BE 88.221.83.209:443 www.bing.com tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
BE 88.221.83.250:443 www.bing.com tcp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 250.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 pastebin.com udp
US 172.67.19.24:443 pastebin.com tcp
US 156.238.224.215:6642 tcp
US 8.8.8.8:53 24.19.67.172.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 142.53.16.96.in-addr.arpa udp
US 156.238.224.215:6642 tcp
US 156.238.224.215:6642 tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 156.238.224.215:6642 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 156.238.224.215:6642 tcp
US 156.238.224.215:6642 tcp

Files

memory/1456-0-0x000000007449E000-0x000000007449F000-memory.dmp

memory/1456-1-0x00000000001C0000-0x00000000001CC000-memory.dmp

memory/1456-2-0x0000000004BA0000-0x0000000004C3C000-memory.dmp

memory/1456-3-0x0000000004C40000-0x0000000004CA6000-memory.dmp

memory/1456-4-0x0000000074490000-0x0000000074C40000-memory.dmp

memory/1456-5-0x0000000005820000-0x0000000005DC4000-memory.dmp

C:\Users\Admin\services.exe

MD5 4d404ac646564376d34cfbabbfe508ec
SHA1 ffa0d8f480c4f39037be40d1eba0a6b6f9016420
SHA256 5ec2650940db1e24271b84e5553d8454f17a7c99cbb36579aa843aa09798efe3
SHA512 6eaa4a5a60bcc3162adc3b7c6247717b602f06de137283e68bd3d1b6f95d80b5b0396fcfa464d056f44b068ec59299d3dca8f10aa04546eb9ed74d8a8944edc5

memory/2628-24-0x0000000074490000-0x0000000074C40000-memory.dmp

memory/1456-25-0x0000000074490000-0x0000000074C40000-memory.dmp

memory/2628-26-0x0000000074490000-0x0000000074C40000-memory.dmp