Malware Analysis Report

2024-09-11 10:21

Sample ID 240601-jg7zkaec4s
Target 89c668f0c43d38409f518621725f71c5_JaffaCakes118
SHA256 ec344326d43881d1fbf9fe5d63519fb3d8f345e966da5e417682763e37f75281
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

ec344326d43881d1fbf9fe5d63519fb3d8f345e966da5e417682763e37f75281

Threat Level: Known bad

The file 89c668f0c43d38409f518621725f71c5_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

limerat rat

LimeRAT

Limerat family

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Legitimate hosting services abused for malware hosting/C2

Enumerates physical storage devices

Unsigned PE

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

2024-06-01 07:39

Signatures

Limerat family

limerat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-01 07:39

Reported

2024-06-01 07:42

Platform

win7-20231129-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe"

Signatures

LimeRAT

rat limerat

Executes dropped EXE

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.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\WindowsSecurityHealthService\Windows Security Health Service.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 756 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 756 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 756 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 756 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 756 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe
PID 756 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe
PID 756 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe
PID 756 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe

Processes

C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

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

C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe

"C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.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 8.8.8.8:53 pki.goog udp
US 216.239.32.29:80 pki.goog tcp
US 8.8.8.8:53 www.microsoft.com udp

Files

memory/756-0-0x0000000074E7E000-0x0000000074E7F000-memory.dmp

memory/756-1-0x0000000000BB0000-0x0000000000BBC000-memory.dmp

\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe

MD5 89c668f0c43d38409f518621725f71c5
SHA1 4b6b055e362cc3563b9dabac32af9ae5e0a97bb0
SHA256 ec344326d43881d1fbf9fe5d63519fb3d8f345e966da5e417682763e37f75281
SHA512 65c5d20ec7726a165a8a772b5f0c016c12cb34f96bb5f9026eed9b04d8e82c270d347095efbfd4e67be96269efa78494abc3cadd7678b22e56dfcd8b9a7436cd

memory/756-13-0x0000000074E70000-0x000000007555E000-memory.dmp

memory/2644-12-0x0000000000020000-0x000000000002C000-memory.dmp

memory/2644-14-0x0000000074E70000-0x000000007555E000-memory.dmp

memory/756-15-0x0000000074E70000-0x000000007555E000-memory.dmp

memory/2644-16-0x0000000074E70000-0x000000007555E000-memory.dmp

memory/2644-31-0x0000000074E70000-0x000000007555E000-memory.dmp

memory/2644-32-0x0000000074E70000-0x000000007555E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-01 07:39

Reported

2024-06-01 07:42

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe"

Signatures

LimeRAT

rat limerat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe N/A

Executes dropped EXE

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3256 wrote to memory of 4108 N/A C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 3256 wrote to memory of 4108 N/A C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 3256 wrote to memory of 4108 N/A C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 3256 wrote to memory of 4368 N/A C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe
PID 3256 wrote to memory of 4368 N/A C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe
PID 3256 wrote to memory of 4368 N/A C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe

Processes

C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

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

C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe

"C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 pastebin.com udp
US 104.20.4.235:443 pastebin.com tcp
US 8.8.8.8:53 235.4.20.104.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 98.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/3256-0-0x000000007453E000-0x000000007453F000-memory.dmp

memory/3256-1-0x0000000000C50000-0x0000000000C5C000-memory.dmp

memory/3256-2-0x0000000005630000-0x00000000056CC000-memory.dmp

memory/3256-3-0x0000000005590000-0x00000000055F6000-memory.dmp

memory/3256-4-0x0000000074530000-0x0000000074CE0000-memory.dmp

memory/3256-5-0x00000000062A0000-0x0000000006844000-memory.dmp

C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe

MD5 89c668f0c43d38409f518621725f71c5
SHA1 4b6b055e362cc3563b9dabac32af9ae5e0a97bb0
SHA256 ec344326d43881d1fbf9fe5d63519fb3d8f345e966da5e417682763e37f75281
SHA512 65c5d20ec7726a165a8a772b5f0c016c12cb34f96bb5f9026eed9b04d8e82c270d347095efbfd4e67be96269efa78494abc3cadd7678b22e56dfcd8b9a7436cd

memory/3256-15-0x0000000074530000-0x0000000074CE0000-memory.dmp

memory/4368-16-0x0000000074530000-0x0000000074CE0000-memory.dmp

memory/4368-17-0x0000000074530000-0x0000000074CE0000-memory.dmp

memory/4368-18-0x0000000074530000-0x0000000074CE0000-memory.dmp

memory/4368-19-0x0000000074530000-0x0000000074CE0000-memory.dmp