Malware Analysis Report

2024-09-11 10:01

Sample ID 240512-rgc37ahg6z
Target 3a82723189d647fbddd8cd873db092f2_JaffaCakes118
SHA256 56a2d4ec33c944d9b53fada5711fc2f126178c215e334e37cc63f2d8e66a410f
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

56a2d4ec33c944d9b53fada5711fc2f126178c215e334e37cc63f2d8e66a410f

Threat Level: Known bad

The file 3a82723189d647fbddd8cd873db092f2_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

limerat rat

LimeRAT

Limerat family

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Legitimate hosting services abused for malware hosting/C2

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

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

2024-05-12 14:09

Signatures

Limerat family

limerat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-12 14:09

Reported

2024-05-12 14:12

Platform

win7-20240221-en

Max time kernel

132s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe"

Signatures

LimeRAT

rat limerat

Executes dropped EXE

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_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\MicrosoftSpeech\MicrosoftSpeech.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\MicrosoftSpeech\MicrosoftSpeech.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1612 wrote to memory of 2600 N/A C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1612 wrote to memory of 2600 N/A C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1612 wrote to memory of 2600 N/A C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1612 wrote to memory of 2600 N/A C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1612 wrote to memory of 2400 N/A C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe C:\Users\Admin\MicrosoftSpeech\MicrosoftSpeech.exe
PID 1612 wrote to memory of 2400 N/A C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe C:\Users\Admin\MicrosoftSpeech\MicrosoftSpeech.exe
PID 1612 wrote to memory of 2400 N/A C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe C:\Users\Admin\MicrosoftSpeech\MicrosoftSpeech.exe
PID 1612 wrote to memory of 2400 N/A C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe C:\Users\Admin\MicrosoftSpeech\MicrosoftSpeech.exe

Processes

C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

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

C:\Users\Admin\MicrosoftSpeech\MicrosoftSpeech.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 pastebin.com udp
US 172.67.19.24:443 pastebin.com tcp
DE 91.218.65.24:8888 tcp
DE 91.218.65.24:8888 tcp
DE 91.218.65.24:8888 tcp
DE 91.218.65.24:8888 tcp
DE 91.218.65.24:8888 tcp
DE 91.218.65.24:8888 tcp

Files

memory/1612-0-0x0000000073ECE000-0x0000000073ECF000-memory.dmp

memory/1612-1-0x0000000000E30000-0x0000000000E3C000-memory.dmp

\Users\Admin\MicrosoftSpeech\MicrosoftSpeech.exe

MD5 3a82723189d647fbddd8cd873db092f2
SHA1 5bc7c36acbc90174c3d36ae08144d4fe196f770c
SHA256 56a2d4ec33c944d9b53fada5711fc2f126178c215e334e37cc63f2d8e66a410f
SHA512 e1c229f922a90e3384fbdf2d0c95163bf7b3e816dbc77524a49db89bdc836d6f1de53c1a9328b0091ce3cb7bc91378ac8eaeade27d82bde32d5dbd5a8acadcc3

memory/2400-12-0x0000000001050000-0x000000000105C000-memory.dmp

memory/1612-13-0x0000000073EC0000-0x00000000745AE000-memory.dmp

memory/2400-14-0x0000000073EC0000-0x00000000745AE000-memory.dmp

memory/2400-15-0x0000000073EC0000-0x00000000745AE000-memory.dmp

memory/2400-16-0x0000000073EC0000-0x00000000745AE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-12 14:09

Reported

2024-05-12 14:12

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.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\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe N/A

Executes dropped EXE

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3084 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 3084 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 3084 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 3084 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe C:\Users\Admin\MicrosoftSpeech\MicrosoftSpeech.exe
PID 3084 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe C:\Users\Admin\MicrosoftSpeech\MicrosoftSpeech.exe
PID 3084 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe C:\Users\Admin\MicrosoftSpeech\MicrosoftSpeech.exe

Processes

C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\3a82723189d647fbddd8cd873db092f2_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

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

C:\Users\Admin\MicrosoftSpeech\MicrosoftSpeech.exe

"C:\Users\Admin\MicrosoftSpeech\MicrosoftSpeech.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 g.bing.com udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 pastebin.com udp
US 104.20.4.235:443 pastebin.com tcp
DE 91.218.65.24:8888 tcp
US 8.8.8.8:53 235.4.20.104.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
DE 91.218.65.24:8888 tcp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
DE 91.218.65.24:8888 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 52.111.229.48:443 tcp
DE 91.218.65.24:8888 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
DE 91.218.65.24:8888 tcp
DE 91.218.65.24:8888 tcp
US 8.8.8.8:53 udp

Files

memory/3084-0-0x0000000074E1E000-0x0000000074E1F000-memory.dmp

memory/3084-1-0x00000000007C0000-0x00000000007CC000-memory.dmp

memory/3084-2-0x0000000005010000-0x00000000050AC000-memory.dmp

memory/3084-3-0x00000000050E0000-0x0000000005146000-memory.dmp

memory/3084-4-0x0000000074E10000-0x00000000755C0000-memory.dmp

memory/3084-5-0x0000000005E30000-0x00000000063D4000-memory.dmp

C:\Users\Admin\MicrosoftSpeech\MicrosoftSpeech.exe

MD5 3a82723189d647fbddd8cd873db092f2
SHA1 5bc7c36acbc90174c3d36ae08144d4fe196f770c
SHA256 56a2d4ec33c944d9b53fada5711fc2f126178c215e334e37cc63f2d8e66a410f
SHA512 e1c229f922a90e3384fbdf2d0c95163bf7b3e816dbc77524a49db89bdc836d6f1de53c1a9328b0091ce3cb7bc91378ac8eaeade27d82bde32d5dbd5a8acadcc3

memory/5116-15-0x0000000074E10000-0x00000000755C0000-memory.dmp

memory/3084-16-0x0000000074E10000-0x00000000755C0000-memory.dmp

memory/5116-17-0x0000000074E10000-0x00000000755C0000-memory.dmp

memory/5116-18-0x0000000074E10000-0x00000000755C0000-memory.dmp