Malware Analysis Report

2024-09-11 09:25

Sample ID 240526-pvzs1aeb83
Target AVRgpj.exe
SHA256 0254f150e1cdc3d3eaed66f447d504546f373bfcc859bd734318cc591396af3b
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 Overview

score
10/10

SHA256

0254f150e1cdc3d3eaed66f447d504546f373bfcc859bd734318cc591396af3b

Threat Level: Known bad

The file AVRgpj.exe was found to be: Known bad.

Malicious Activity Summary

discordrat persistence rat rootkit stealer

Discord RAT

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

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
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

2024-05-26 12:39

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-26 12:39

Reported

2024-05-26 12:41

Platform

win10-20240404-en

Max time kernel

72s

Max time network

80s

Command Line

"C:\Users\Admin\AppData\Local\Temp\AVRgpj.exe"

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\av.exe N/A

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

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\av.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2988 wrote to memory of 4480 N/A C:\Users\Admin\AppData\Local\Temp\AVRgpj.exe C:\Users\Admin\AppData\Local\Temp\RarSFX0\av.exe
PID 2988 wrote to memory of 4480 N/A C:\Users\Admin\AppData\Local\Temp\AVRgpj.exe C:\Users\Admin\AppData\Local\Temp\RarSFX0\av.exe

Processes

C:\Users\Admin\AppData\Local\Temp\AVRgpj.exe

"C:\Users\Admin\AppData\Local\Temp\AVRgpj.exe"

C:\Users\Admin\AppData\Local\Temp\RarSFX0\av.exe

"C:\Users\Admin\AppData\Local\Temp\RarSFX0\av.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 gateway.discord.gg udp
US 162.159.134.234:443 gateway.discord.gg tcp
US 8.8.8.8:53 234.134.159.162.in-addr.arpa udp
US 8.8.8.8:53 discord.com udp
US 162.159.128.233:443 discord.com tcp
US 8.8.8.8:53 geolocation-db.com udp
DE 159.89.102.253:443 geolocation-db.com tcp
US 162.159.128.233:443 discord.com tcp
US 8.8.8.8:53 233.128.159.162.in-addr.arpa udp
US 8.8.8.8:53 253.102.89.159.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\RarSFX0\av.exe

MD5 b62264f264fac36f1155abb7a2605c48
SHA1 d247059a5cde478128840949e7d7c421730ab56c
SHA256 072dde2a673c6bf2867464fd96894e5c906eebb0e2716cd6538a2066b49df849
SHA512 7259632249fc4776dd619cc75c289417d9d0571c08aa61031b2ebacfde6241d1264ca1fcd96b7eb3d16456e908cd150adda54ded10f3830507fc0e6858e97f75

memory/4480-6-0x00007FFA72F73000-0x00007FFA72F74000-memory.dmp

memory/4480-7-0x0000017919620000-0x0000017919638000-memory.dmp

memory/4480-8-0x0000017933D00000-0x0000017933EC2000-memory.dmp

memory/4480-9-0x00007FFA72F70000-0x00007FFA7395C000-memory.dmp

memory/4480-10-0x0000017934400000-0x0000017934926000-memory.dmp

memory/4480-11-0x00007FFA72F73000-0x00007FFA72F74000-memory.dmp

memory/4480-12-0x00007FFA72F70000-0x00007FFA7395C000-memory.dmp