Malware Analysis Report

2024-09-11 10:20

Sample ID 240707-hx6wrswgln
Target New-Client.exe
SHA256 1bf99ff57e5e9ce74f1e53fb0642e40b5b100642e8c901ca8791e43e4f777941
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 Overview

score
10/10

SHA256

1bf99ff57e5e9ce74f1e53fb0642e40b5b100642e8c901ca8791e43e4f777941

Threat Level: Known bad

The file New-Client.exe was found to be: Known bad.

Malicious Activity Summary

limerat rat

Limerat family

LimeRAT

Executes dropped EXE

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Scheduled Task/Job: Scheduled Task

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Scheduled Task/Job
T1053
Scheduled Task
T1053.005
Persistence
TA0003
Scheduled Task/Job
T1053
Scheduled Task
T1053.005
Privilege Escalation
TA0004
Scheduled Task/Job
T1053
Scheduled Task
T1053.005
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
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

2024-07-07 07:07

Signatures

Limerat family

limerat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-07 07:07

Reported

2024-07-07 07:08

Platform

win11-20240704-en

Max time kernel

30s

Max time network

38s

Command Line

"C:\Users\Admin\AppData\Local\Temp\New-Client.exe"

Signatures

LimeRAT

rat limerat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\sdfagre\aidb.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 pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A

Enumerates physical storage devices

Scheduled Task/Job: Scheduled Task

persistence execution
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\sdfagre\aidb.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\sdfagre\aidb.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 336 wrote to memory of 3708 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Windows\SysWOW64\schtasks.exe
PID 336 wrote to memory of 3708 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Windows\SysWOW64\schtasks.exe
PID 336 wrote to memory of 3708 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Windows\SysWOW64\schtasks.exe
PID 336 wrote to memory of 3488 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Users\Admin\sdfagre\aidb.exe
PID 336 wrote to memory of 3488 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Users\Admin\sdfagre\aidb.exe
PID 336 wrote to memory of 3488 N/A C:\Users\Admin\AppData\Local\Temp\New-Client.exe C:\Users\Admin\sdfagre\aidb.exe

Processes

C:\Users\Admin\AppData\Local\Temp\New-Client.exe

"C:\Users\Admin\AppData\Local\Temp\New-Client.exe"

C:\Windows\SysWOW64\schtasks.exe

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

C:\Users\Admin\sdfagre\aidb.exe

"C:\Users\Admin\sdfagre\aidb.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 172.67.19.24:443 pastebin.com tcp
US 8.8.8.8:53 24.19.67.172.in-addr.arpa udp
US 172.67.19.24:443 pastebin.com tcp
US 172.67.19.24:443 pastebin.com tcp
US 172.67.19.24:443 pastebin.com tcp
US 172.67.19.24:443 pastebin.com tcp

Files

memory/336-0-0x000000007444E000-0x000000007444F000-memory.dmp

memory/336-1-0x0000000000820000-0x000000000082C000-memory.dmp

memory/336-2-0x00000000052C0000-0x000000000535C000-memory.dmp

memory/336-3-0x00000000053D0000-0x0000000005436000-memory.dmp

memory/336-4-0x0000000074440000-0x0000000074BF1000-memory.dmp

memory/336-5-0x00000000060B0000-0x0000000006656000-memory.dmp

C:\Users\Admin\sdfagre\aidb.exe

MD5 84da46d931269545f71141e7b44c78b6
SHA1 72468bc577e9642e0f2c30cfe8b298c019f92a60
SHA256 1bf99ff57e5e9ce74f1e53fb0642e40b5b100642e8c901ca8791e43e4f777941
SHA512 8f897acd0b559d407ec2d9a4985f0579e14b58b9e4b2d252a62d0e433eb34549cf64918da1b799afe90e98e6098915805c3bfe3917df3895d3feba03dccb372b

memory/3488-15-0x0000000074440000-0x0000000074BF1000-memory.dmp

memory/336-16-0x0000000074440000-0x0000000074BF1000-memory.dmp

memory/3488-17-0x0000000074440000-0x0000000074BF1000-memory.dmp