Malware Analysis Report

2024-09-11 09:00

Sample ID 240624-yk374szfje
Target release.zip
SHA256 c13a0cd7c2c2fd577703bff026b72ed81b51266afa047328c8ff1c4a4d965c97
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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral5

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral6

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c13a0cd7c2c2fd577703bff026b72ed81b51266afa047328c8ff1c4a4d965c97

Threat Level: Known bad

The file release.zip was found to be: Known bad.

Malicious Activity Summary

discordrat persistence rat rootkit stealer

Discordrat family

Discord RAT

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-24 19:51

Signatures

Discordrat family

discordrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-24 19:51

Reported

2024-06-24 19:53

Platform

win7-20240419-en

Max time kernel

50s

Max time network

17s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Release\Discord rat.exe"

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Processes

C:\Users\Admin\AppData\Local\Temp\Release\Discord rat.exe

"C:\Users\Admin\AppData\Local\Temp\Release\Discord rat.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2028 -s 600

Network

N/A

Files

memory/2028-0-0x000007FEF51F3000-0x000007FEF51F4000-memory.dmp

memory/2028-1-0x000000013FBC0000-0x000000013FBD8000-memory.dmp

memory/2028-2-0x000007FEF51F0000-0x000007FEF5BDC000-memory.dmp

memory/2028-3-0x000007FEF51F0000-0x000007FEF5BDC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-24 19:51

Reported

2024-06-24 19:53

Platform

win10v2004-20240508-en

Max time kernel

79s

Max time network

83s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Release\Discord rat.exe"

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Release\Discord rat.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Release\Discord rat.exe

"C:\Users\Admin\AppData\Local\Temp\Release\Discord rat.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 gateway.discord.gg udp
US 52.111.229.43:443 tcp

Files

memory/1644-0-0x000001EAA98E0000-0x000001EAA98F8000-memory.dmp

memory/1644-1-0x00007FF980EF3000-0x00007FF980EF5000-memory.dmp

memory/1644-2-0x000001EAC3F50000-0x000001EAC4112000-memory.dmp

memory/1644-3-0x00007FF980EF0000-0x00007FF9819B1000-memory.dmp

memory/1644-4-0x00007FF980EF0000-0x00007FF9819B1000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-06-24 19:51

Reported

2024-06-24 19:53

Platform

win7-20240220-en

Max time kernel

44s

Max time network

16s

Command Line

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

Signatures

N/A

Processes

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

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

Network

N/A

Files

memory/1740-0-0x000000007488E000-0x000000007488F000-memory.dmp

memory/1740-1-0x00000000000E0000-0x00000000000E8000-memory.dmp

memory/1740-2-0x0000000074880000-0x0000000074F6E000-memory.dmp

memory/1740-3-0x000000007488E000-0x000000007488F000-memory.dmp

memory/1740-4-0x0000000074880000-0x0000000074F6E000-memory.dmp

Analysis: behavioral4

Detonation Overview

Submitted

2024-06-24 19:51

Reported

2024-06-24 19:53

Platform

win10v2004-20240508-en

Max time kernel

90s

Max time network

94s

Command Line

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

Signatures

N/A

Processes

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

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

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3988,i,18168883380598738769,14202261231630113808,262144 --variations-seed-version --mojo-platform-channel-handle=4160 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 105.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 31.251.17.2.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/3296-0-0x000000007500E000-0x000000007500F000-memory.dmp

memory/3296-1-0x0000000000210000-0x0000000000218000-memory.dmp

memory/3296-2-0x0000000005070000-0x0000000005614000-memory.dmp

memory/3296-3-0x0000000004B60000-0x0000000004BF2000-memory.dmp

memory/3296-4-0x0000000004AF0000-0x0000000004AFA000-memory.dmp

memory/3296-5-0x0000000075000000-0x00000000757B0000-memory.dmp

memory/3296-6-0x000000007500E000-0x000000007500F000-memory.dmp

memory/3296-7-0x0000000075000000-0x00000000757B0000-memory.dmp

Analysis: behavioral5

Detonation Overview

Submitted

2024-06-24 19:51

Reported

2024-06-24 19:53

Platform

win7-20240419-en

Max time kernel

44s

Max time network

16s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\dnlib.dll,#1

Signatures

N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\dnlib.dll,#1

Network

N/A

Files

N/A

Analysis: behavioral6

Detonation Overview

Submitted

2024-06-24 19:51

Reported

2024-06-24 19:52

Platform

win10v2004-20240508-en

Max time kernel

12s

Max time network

19s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\dnlib.dll,#1

Signatures

N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\dnlib.dll,#1

Network

Files

N/A