Malware Analysis Report

2024-09-11 09:27

Sample ID 240531-y1gn2sbg5s
Target monoware.exe
SHA256 aed0081d6aa8fa3b29d155c6bb45e9278b4562102f8d4497a51db56871a74134
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

aed0081d6aa8fa3b29d155c6bb45e9278b4562102f8d4497a51db56871a74134

Threat Level: Known bad

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

Malicious Activity Summary

discordrat persistence rat rootkit stealer

Discord RAT

Discordrat family

Downloads MZ/PE file

Checks computer location settings

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Enumerates physical storage devices

Modifies data under HKEY_USERS

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
Query Registry
T1012
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

2024-05-31 20:14

Signatures

Discordrat family

discordrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-31 20:14

Reported

2024-05-31 20:17

Platform

win7-20240221-en

Max time kernel

121s

Max time network

123s

Command Line

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

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2292 wrote to memory of 2756 N/A C:\Users\Admin\AppData\Local\Temp\monoware.exe C:\Windows\system32\WerFault.exe
PID 2292 wrote to memory of 2756 N/A C:\Users\Admin\AppData\Local\Temp\monoware.exe C:\Windows\system32\WerFault.exe
PID 2292 wrote to memory of 2756 N/A C:\Users\Admin\AppData\Local\Temp\monoware.exe C:\Windows\system32\WerFault.exe

Processes

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

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

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2292 -s 604

Network

N/A

Files

memory/2292-0-0x000007FEF58E3000-0x000007FEF58E4000-memory.dmp

memory/2292-1-0x000000013FE00000-0x000000013FE18000-memory.dmp

memory/2292-2-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

memory/2292-3-0x000007FEF58E3000-0x000007FEF58E4000-memory.dmp

memory/2292-4-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-31 20:14

Reported

2024-05-31 20:16

Platform

win10v2004-20240426-en

Max time kernel

90s

Max time network

93s

Command Line

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

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Downloads MZ/PE file

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\monoware.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
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

Enumerates physical storage devices

Modifies data under HKEY_USERS

Description Indicator Process Target
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "156" C:\Windows\system32\LogonUI.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" C:\Windows\system32\LogonUI.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 C:\Windows\system32\LogonUI.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" C:\Windows\system32\LogonUI.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\monoware.exe N/A
Token: 33 N/A C:\Windows\system32\AUDIODG.EXE N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\system32\AUDIODG.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\shutdown.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\shutdown.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\system32\LogonUI.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 556 wrote to memory of 2432 N/A C:\Users\Admin\AppData\Local\Temp\monoware.exe C:\Windows\System32\shutdown.exe
PID 556 wrote to memory of 2432 N/A C:\Users\Admin\AppData\Local\Temp\monoware.exe C:\Windows\System32\shutdown.exe

Processes

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

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

C:\Windows\system32\AUDIODG.EXE

C:\Windows\system32\AUDIODG.EXE 0x2f8 0x2fc

C:\Windows\System32\shutdown.exe

"C:\Windows\System32\shutdown.exe" /s /t 0

C:\Windows\system32\LogonUI.exe

"LogonUI.exe" /flags:0x4 /state0:0xa3942855 /state1:0x41c64e6d

Network

Country Destination Domain Proto
US 8.8.8.8:53 gateway.discord.gg udp
US 162.159.136.234:443 gateway.discord.gg tcp
US 8.8.8.8:53 discord.com udp
US 8.8.8.8:53 234.136.159.162.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 162.159.135.232:443 discord.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 232.135.159.162.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 162.159.135.232:443 discord.com tcp
US 8.8.8.8:53 253.102.89.159.in-addr.arpa udp
US 162.159.135.232:443 discord.com tcp
US 162.159.135.232:443 discord.com tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 cdn.discordapp.com udp
US 162.159.133.233:443 cdn.discordapp.com tcp
US 8.8.8.8:53 233.133.159.162.in-addr.arpa udp
US 8.8.8.8:53 131.83.221.88.in-addr.arpa udp
US 162.159.135.232:443 discord.com tcp
US 162.159.135.232:443 discord.com tcp

Files

memory/556-0-0x00007FFCE0913000-0x00007FFCE0915000-memory.dmp

memory/556-1-0x0000016C88230000-0x0000016C88248000-memory.dmp

memory/556-2-0x0000016CA2830000-0x0000016CA29F2000-memory.dmp

memory/556-3-0x00007FFCE0910000-0x00007FFCE13D1000-memory.dmp

memory/556-4-0x0000016CA3030000-0x0000016CA3558000-memory.dmp

memory/556-5-0x00007FFCE0913000-0x00007FFCE0915000-memory.dmp

memory/556-6-0x00007FFCE0910000-0x00007FFCE13D1000-memory.dmp

memory/556-7-0x0000016CA2BB0000-0x0000016CA2C5A000-memory.dmp

memory/556-11-0x00007FFCE0910000-0x00007FFCE13D1000-memory.dmp

memory/556-12-0x00007FFCE0910000-0x00007FFCE13D1000-memory.dmp