Malware Analysis Report

2025-05-28 17:21

Sample ID 240503-py2rrsff71
Target eb508c21c59a7fff7924f7243e5949e8.exe
SHA256 bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1
Tags
zgrat rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1

Threat Level: Known bad

The file eb508c21c59a7fff7924f7243e5949e8.exe was found to be: Known bad.

Malicious Activity Summary

zgrat rat

Detect ZGRat V1

ZGRat

Suspicious use of SetThreadContext

Program crash

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-03 12:45

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-03 12:45

Reported

2024-05-03 12:47

Platform

win7-20240221-en

Max time kernel

122s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe

"C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe"

Network

N/A

Files

memory/1948-0-0x0000000000200000-0x0000000000289953-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-03 12:45

Reported

2024-05-03 12:47

Platform

win10v2004-20240426-en

Max time kernel

142s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe"

Signatures

Detect ZGRat V1

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

ZGRat

rat zgrat

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4076 set thread context of 2992 N/A C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4076 wrote to memory of 4784 N/A C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4076 wrote to memory of 4784 N/A C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4076 wrote to memory of 4784 N/A C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4076 wrote to memory of 2992 N/A C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4076 wrote to memory of 2992 N/A C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4076 wrote to memory of 2992 N/A C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4076 wrote to memory of 2992 N/A C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4076 wrote to memory of 2992 N/A C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4076 wrote to memory of 2992 N/A C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4076 wrote to memory of 2992 N/A C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4076 wrote to memory of 2992 N/A C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe

"C:\Users\Admin\AppData\Local\Temp\eb508c21c59a7fff7924f7243e5949e8.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4076 -ip 4076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4076 -s 304

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
NL 80.79.4.61:26335 tcp
NL 23.62.61.194:443 www.bing.com tcp
NL 80.79.4.61:26335 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
NL 80.79.4.61:26335 tcp
NL 80.79.4.61:26335 tcp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
NL 80.79.4.61:26335 tcp
NL 80.79.4.61:26335 tcp
NL 80.79.4.61:26335 tcp

Files

memory/4076-0-0x0000000000E36000-0x0000000000E37000-memory.dmp

memory/2992-1-0x0000000000400000-0x000000000045C000-memory.dmp

memory/2992-2-0x00000000742BE000-0x00000000742BF000-memory.dmp

memory/2992-3-0x0000000005CA0000-0x0000000006244000-memory.dmp

memory/2992-4-0x0000000005790000-0x0000000005822000-memory.dmp

memory/2992-5-0x00000000742B0000-0x0000000074A60000-memory.dmp

memory/4076-6-0x0000000000DB0000-0x0000000000E39953-memory.dmp

memory/2992-7-0x0000000005840000-0x000000000584A000-memory.dmp

memory/2992-8-0x0000000008B40000-0x0000000009158000-memory.dmp

memory/2992-9-0x0000000008670000-0x000000000877A000-memory.dmp

memory/2992-10-0x00000000085B0000-0x00000000085C2000-memory.dmp

memory/2992-11-0x0000000008610000-0x000000000864C000-memory.dmp

memory/2992-12-0x0000000008780000-0x00000000087CC000-memory.dmp

memory/2992-13-0x00000000742BE000-0x00000000742BF000-memory.dmp

memory/2992-14-0x00000000742B0000-0x0000000074A60000-memory.dmp