Malware Analysis Report

2024-09-11 09:21

Sample ID 240607-l44xjaff77
Target 8QER18Z.exe
SHA256 fa7cb5330959d52657751fe369325137d5c365dccc134250c416c5df4bc40af8
Tags
discordrat persistence rat rootkit stealer
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

fa7cb5330959d52657751fe369325137d5c365dccc134250c416c5df4bc40af8

Threat Level: Known bad

The file 8QER18Z.exe was found to be: Known bad.

Malicious Activity Summary

discordrat persistence rat rootkit stealer

Discordrat family

Discord RAT

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Uses Task Scheduler COM API

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
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

2024-06-07 10:06

Signatures

Discordrat family

discordrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-07 10:06

Reported

2024-06-07 10:11

Platform

win7-20231129-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8QER18Z.exe"

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1936 wrote to memory of 2252 N/A C:\Users\Admin\AppData\Local\Temp\8QER18Z.exe C:\Windows\system32\WerFault.exe
PID 1936 wrote to memory of 2252 N/A C:\Users\Admin\AppData\Local\Temp\8QER18Z.exe C:\Windows\system32\WerFault.exe
PID 1936 wrote to memory of 2252 N/A C:\Users\Admin\AppData\Local\Temp\8QER18Z.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8QER18Z.exe

"C:\Users\Admin\AppData\Local\Temp\8QER18Z.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 1936 -s 600

Network

N/A

Files

memory/1936-0-0x000007FEF50B3000-0x000007FEF50B4000-memory.dmp

memory/1936-1-0x000000013FBE0000-0x000000013FBF8000-memory.dmp

memory/1936-2-0x000007FEF50B0000-0x000007FEF5A9C000-memory.dmp

memory/1936-3-0x000007FEF50B3000-0x000007FEF50B4000-memory.dmp

memory/1936-4-0x000007FEF50B0000-0x000007FEF5A9C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-07 10:06

Reported

2024-06-07 10:11

Platform

win10v2004-20240426-en

Max time kernel

92s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8QER18Z.exe"

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A discord.com N/A N/A
N/A discord.com N/A N/A
N/A discord.com N/A N/A
N/A discord.com N/A N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SYSTEM32\SCHTASKS.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\8QER18Z.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3444 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\8QER18Z.exe C:\Windows\SYSTEM32\SCHTASKS.exe
PID 3444 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\8QER18Z.exe C:\Windows\SYSTEM32\SCHTASKS.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\8QER18Z.exe

"C:\Users\Admin\AppData\Local\Temp\8QER18Z.exe"

C:\Windows\SYSTEM32\SCHTASKS.exe

"SCHTASKS.exe" /create /tn "$778QER18Z.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\8QER18Z.exe'" /sc onlogon /rl HIGHEST

Network

Country Destination Domain Proto
US 8.8.8.8:53 gateway.discord.gg udp
US 162.159.130.234:443 gateway.discord.gg tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 discord.com udp
US 162.159.137.232:443 discord.com tcp
US 8.8.8.8:53 234.130.159.162.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.137.159.162.in-addr.arpa udp
US 8.8.8.8:53 geolocation-db.com udp
DE 159.89.102.253:443 geolocation-db.com tcp
US 162.159.137.232:443 discord.com tcp
US 8.8.8.8:53 253.102.89.159.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 162.159.137.232:443 discord.com tcp

Files

memory/3444-0-0x0000018973FB0000-0x0000018973FC8000-memory.dmp

memory/3444-1-0x00007FFC279D3000-0x00007FFC279D5000-memory.dmp

memory/3444-2-0x00000189765C0000-0x0000018976782000-memory.dmp

memory/3444-3-0x00007FFC279D0000-0x00007FFC28491000-memory.dmp

memory/3444-4-0x0000018976DC0000-0x00000189772E8000-memory.dmp

memory/3444-5-0x00007FFC279D3000-0x00007FFC279D5000-memory.dmp

memory/3444-6-0x00007FFC279D0000-0x00007FFC28491000-memory.dmp