Malware Analysis Report

2025-03-15 03:50

Sample ID 250221-2qjbnsspcn
Target svchost.exe
SHA256 ba51980ef9681d849c9331e891cc411c1687d3c011f0acc01da9f4ef640764b6
Tags
fatalrat discovery infostealer rat stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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 Overview

score
10/10

SHA256

ba51980ef9681d849c9331e891cc411c1687d3c011f0acc01da9f4ef640764b6

Threat Level: Known bad

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

Malicious Activity Summary

fatalrat discovery infostealer rat stealer trojan

FatalRat

Fatalrat family

Fatal Rat payload

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-02-21 22:47

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-02-21 22:47

Reported

2025-02-21 22:49

Platform

win7-20240903-en

Max time kernel

148s

Max time network

148s

Command Line

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

Signatures

FatalRat

stealer trojan fatalrat

Fatalrat family

fatalrat

Fatal Rat payload

rat infostealer
Description Indicator Process Target
N/A N/A N/A N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\svchost.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 a17.nbdsnb2.top udp
US 8.8.8.8:53 a17.yydsnb1.top udp
HK 47.76.184.172:1080 a17.yydsnb1.top tcp
HK 47.76.184.172:1080 a17.yydsnb1.top tcp
HK 47.76.184.172:1080 a17.yydsnb1.top tcp
HK 47.76.184.172:1080 a17.yydsnb1.top tcp
HK 47.76.184.172:1080 a17.yydsnb1.top tcp

Files

memory/2188-0-0x0000000000400000-0x000000000090B000-memory.dmp

memory/2188-2-0x0000000010000000-0x000000001002D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-02-21 22:47

Reported

2025-02-21 22:49

Platform

win10ltsc2021-20250217-en

Max time kernel

136s

Max time network

145s

Command Line

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

Signatures

FatalRat

stealer trojan fatalrat

Fatalrat family

fatalrat

Fatal Rat payload

rat infostealer
Description Indicator Process Target
N/A N/A N/A N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\svchost.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 a17.yydsnb1.top udp
US 8.8.8.8:53 a17.nbdsnb2.top udp
HK 47.76.184.172:1080 a17.yydsnb1.top tcp
US 8.8.8.8:53 a17.nbdsnb2.top udp
HK 47.76.184.172:1080 a17.yydsnb1.top tcp
US 8.8.8.8:53 a17.nbdsnb2.top udp
US 8.8.8.8:53 a17.nbdsnb2.top udp
HK 47.76.184.172:1080 a17.yydsnb1.top tcp
US 8.8.8.8:53 a17.nbdsnb2.top udp
US 8.8.8.8:53 a17.nbdsnb2.top udp
HK 47.76.184.172:1080 a17.yydsnb1.top tcp
US 8.8.8.8:53 a17.nbdsnb2.top udp
US 8.8.8.8:53 a17.nbdsnb2.top udp
HK 47.76.184.172:1080 a17.yydsnb1.top tcp

Files

memory/2992-0-0x0000000000400000-0x000000000090B000-memory.dmp

memory/2992-2-0x0000000010000000-0x000000001002D000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2025-02-21 22:47

Reported

2025-02-21 22:49

Platform

win11-20250217-en

Max time kernel

147s

Max time network

149s

Command Line

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

Signatures

FatalRat

stealer trojan fatalrat

Fatalrat family

fatalrat

Fatal Rat payload

rat infostealer
Description Indicator Process Target
N/A N/A N/A N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\svchost.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 a17.yydsnb1.top udp
US 8.8.8.8:53 a17.nbdsnb2.top udp
HK 47.76.184.172:1080 a17.yydsnb1.top tcp
HK 47.76.184.172:1080 a17.yydsnb1.top tcp
HK 47.76.184.172:1080 a17.yydsnb1.top tcp
HK 47.76.184.172:1080 a17.yydsnb1.top tcp
HK 47.76.184.172:1080 a17.yydsnb1.top tcp

Files

memory/5856-0-0x0000000000400000-0x000000000090B000-memory.dmp

memory/5856-2-0x0000000010000000-0x000000001002D000-memory.dmp