Malware Analysis Report

2024-09-11 09:17

Sample ID 240623-rs196athja
Target Lethal Company.sfx.exe
SHA256 2103f44233a623b29738ecd251656c3964a873920956fa4cfe7ce17a17001e6e
Tags
discordrat persistence rat rootkit spyware 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

2103f44233a623b29738ecd251656c3964a873920956fa4cfe7ce17a17001e6e

Threat Level: Known bad

The file Lethal Company.sfx.exe was found to be: Known bad.

Malicious Activity Summary

discordrat persistence rat rootkit spyware stealer

Discord RAT

Downloads MZ/PE file

Executes dropped EXE

Reads user/profile data of web browsers

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Uses Task Scheduler COM API

Scheduled Task/Job: Scheduled Task

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Scheduled Task/Job
T1053
Scheduled Task
T1053.005
Persistence
TA0003
Scheduled Task/Job
T1053
Scheduled Task
T1053.005
Privilege Escalation
TA0004
Scheduled Task/Job
T1053
Scheduled Task
T1053.005
Defense Evasion
TA0005
Credential Access
TA0006
Unsecured Credentials
T1552
Credentials In Files
T1552.001
Discovery
TA0007
System Information Discovery
T1082
Query Registry
T1012
Lateral Movement
TA0008
Collection
TA0009
Data from Local System
T1005
Exfiltration
TA0010
Command and Control
TA0011
Web Service
T1102
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-23 14:28

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-23 14:28

Reported

2024-06-23 14:30

Platform

win10-20240404-en

Max time kernel

119s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Lethal Company.sfx.exe"

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Downloads MZ/PE file

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\Lethal Company.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\Client-built.exe N/A

Reads user/profile data of web browsers

spyware stealer

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 raw.githubusercontent.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 raw.githubusercontent.com N/A N/A
N/A discord.com N/A N/A

Enumerates physical storage devices

Scheduled Task/Job: Scheduled Task

persistence execution
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\RarSFX0\Client-built.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\Client-built.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2324 wrote to memory of 856 N/A C:\Users\Admin\AppData\Local\Temp\Lethal Company.sfx.exe C:\Users\Admin\AppData\Local\Temp\RarSFX0\Lethal Company.exe
PID 2324 wrote to memory of 856 N/A C:\Users\Admin\AppData\Local\Temp\Lethal Company.sfx.exe C:\Users\Admin\AppData\Local\Temp\RarSFX0\Lethal Company.exe
PID 2324 wrote to memory of 292 N/A C:\Users\Admin\AppData\Local\Temp\Lethal Company.sfx.exe C:\Users\Admin\AppData\Local\Temp\RarSFX0\Client-built.exe
PID 2324 wrote to memory of 292 N/A C:\Users\Admin\AppData\Local\Temp\Lethal Company.sfx.exe C:\Users\Admin\AppData\Local\Temp\RarSFX0\Client-built.exe
PID 292 wrote to memory of 4632 N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\Client-built.exe C:\Windows\SYSTEM32\SCHTASKS.exe
PID 292 wrote to memory of 4632 N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\Client-built.exe C:\Windows\SYSTEM32\SCHTASKS.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\Lethal Company.sfx.exe

"C:\Users\Admin\AppData\Local\Temp\Lethal Company.sfx.exe"

C:\Users\Admin\AppData\Local\Temp\RarSFX0\Lethal Company.exe

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

C:\Users\Admin\AppData\Local\Temp\RarSFX0\Client-built.exe

"C:\Users\Admin\AppData\Local\Temp\RarSFX0\Client-built.exe"

C:\Windows\SYSTEM32\SCHTASKS.exe

"SCHTASKS.exe" /create /tn "$77Client-built.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\RarSFX0\Client-built.exe'" /sc onlogon /rl HIGHEST

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 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.0.8.0.8.0.8.0.ip6.arpa udp
US 8.8.8.8:53 234.136.159.162.in-addr.arpa udp
US 162.159.137.232:443 discord.com tcp
US 8.8.8.8:53 geolocation-db.com udp
DE 159.89.102.253:443 geolocation-db.com tcp
US 162.159.137.232:443 discord.com tcp
US 8.8.8.8:53 232.137.159.162.in-addr.arpa udp
US 8.8.8.8:53 253.102.89.159.in-addr.arpa udp
US 8.8.8.8:53 raw.githubusercontent.com udp
US 185.199.110.133:443 raw.githubusercontent.com tcp
US 8.8.8.8:53 133.110.199.185.in-addr.arpa udp
US 162.159.137.232:443 discord.com tcp
US 162.159.137.232:443 discord.com tcp
US 162.159.137.232:443 discord.com tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 162.159.137.232:443 discord.com tcp
US 162.159.137.232:443 discord.com tcp

Files

C:\Users\Admin\AppData\Local\Temp\RarSFX0\Lethal Company.exe

MD5 a5721809407229d21ea49a2eb5d8e962
SHA1 1456ec35a2d975ec9d5e732c1fb27987c4184697
SHA256 469f208de455fcb6d334b6ec3655102ae6893de374f890961ab9f317bdfb2c8c
SHA512 f2d5dfb53b790f65987cba5340a3983f03eb23416dc8eb1a1d768a109d845191c48a445f54783b16ed4e089086d2f2815f91582a0f2a547d959a74c5a2f4064a

C:\Users\Admin\AppData\Local\Temp\RarSFX0\Client-built.exe

MD5 f42bdf8f20e5255f795c8674660b1726
SHA1 33f091151b0c8fd79a54147745cf31a73fdc5b09
SHA256 29c656fea6ff37a604471ab0ad639c84ee126068e0d35ec08ad4b7d6e10800df
SHA512 348a29e0e4fbd64ac039987d5368e949c033a45ae51165f3f50d1d8189c3b5955d9ccb4fff40427f12771b4584dadc6aa7244e9241a5a76e1584f2442d8b43a2

memory/292-13-0x000002C362B80000-0x000002C362B98000-memory.dmp

memory/292-14-0x00007FFF7A123000-0x00007FFF7A124000-memory.dmp

memory/292-15-0x000002C37D110000-0x000002C37D2D2000-memory.dmp

memory/292-16-0x00007FFF7A120000-0x00007FFF7AB0C000-memory.dmp

memory/292-17-0x000002C37D910000-0x000002C37DE36000-memory.dmp

memory/292-18-0x00007FFF7A123000-0x00007FFF7A124000-memory.dmp

memory/292-19-0x00007FFF7A120000-0x00007FFF7AB0C000-memory.dmp

memory/292-20-0x000002C37F980000-0x000002C37F9F6000-memory.dmp

memory/292-21-0x000002C37CFA0000-0x000002C37CFB2000-memory.dmp

memory/292-22-0x000002C37D8B0000-0x000002C37D8CE000-memory.dmp