Malware Analysis Report

2024-10-19 09:04

Sample ID 240319-b984bseh41
Target efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047
SHA256 efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047
Tags
purelogstealer agenttesla zgrat keylogger rat spyware stealer trojan
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

efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047

Threat Level: Known bad

The file efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047 was found to be: Known bad.

Malicious Activity Summary

purelogstealer agenttesla zgrat keylogger rat spyware stealer trojan

Purelogstealer family

Detect ZGRat V1

PureLog Stealer payload

AgentTesla

PureLog Stealer

ZGRat

Suspicious use of SetThreadContext

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-03-19 01:51

Signatures

PureLog Stealer payload

Description Indicator Process Target
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Purelogstealer family

purelogstealer

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-19 01:51

Reported

2024-03-19 01:54

Platform

win7-20240221-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Detect ZGRat V1

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PureLog Stealer

stealer purelogstealer

PureLog Stealer payload

Description Indicator Process Target
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ZGRat

rat zgrat

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1660 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
PID 1660 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
PID 1660 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
PID 1660 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
PID 1660 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
PID 1660 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
PID 1660 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
PID 1660 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
PID 1660 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Processes

C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe

"C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe"

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

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

Network

N/A

Files

memory/1660-0-0x0000000000E50000-0x00000000010DC000-memory.dmp

memory/1660-1-0x00000000744C0000-0x0000000074BAE000-memory.dmp

memory/1660-2-0x0000000000CA0000-0x0000000000CE0000-memory.dmp

memory/1660-3-0x0000000005020000-0x0000000005244000-memory.dmp

memory/1660-4-0x0000000005250000-0x0000000005476000-memory.dmp

memory/1660-6-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-5-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-8-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-10-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-12-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-14-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-16-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-18-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-20-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-22-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-24-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-26-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-28-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-30-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-32-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-36-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-38-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-34-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-42-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-44-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-40-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-46-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-48-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-50-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-52-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-58-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-60-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-56-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-64-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-66-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-62-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-68-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-54-0x0000000005250000-0x0000000005470000-memory.dmp

memory/1660-4783-0x00000000006C0000-0x00000000006C1000-memory.dmp

memory/1660-4784-0x00000000048C0000-0x000000000492C000-memory.dmp

memory/1660-4785-0x0000000004930000-0x000000000497C000-memory.dmp

memory/1660-4786-0x00000000744C0000-0x0000000074BAE000-memory.dmp

memory/1660-4787-0x0000000000CA0000-0x0000000000CE0000-memory.dmp

memory/1660-4788-0x00000000049E0000-0x0000000004A34000-memory.dmp

memory/1660-4799-0x00000000744C0000-0x0000000074BAE000-memory.dmp

memory/2728-4803-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2728-4804-0x0000000074440000-0x0000000074B2E000-memory.dmp

memory/2728-4805-0x00000000005B0000-0x00000000005F0000-memory.dmp

memory/2728-4806-0x0000000074440000-0x0000000074B2E000-memory.dmp

memory/2728-4807-0x00000000005B0000-0x00000000005F0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-19 01:51

Reported

2024-03-19 01:54

Platform

win10v2004-20240226-en

Max time kernel

140s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Detect ZGRat V1

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PureLog Stealer

stealer purelogstealer

PureLog Stealer payload

Description Indicator Process Target
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ZGRat

rat zgrat

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3864 wrote to memory of 3528 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
PID 3864 wrote to memory of 3528 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
PID 3864 wrote to memory of 3528 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
PID 3864 wrote to memory of 3528 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
PID 3864 wrote to memory of 3528 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
PID 3864 wrote to memory of 3528 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
PID 3864 wrote to memory of 3528 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
PID 3864 wrote to memory of 3528 N/A C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Processes

C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe

"C:\Users\Admin\AppData\Local\Temp\efafb1121eec46666f9048c85033381411504c4c6f3a6173cda3cd59c8327047.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp

Files

memory/3864-1-0x00000000750E0000-0x0000000075890000-memory.dmp

memory/3864-0-0x0000000000760000-0x00000000009EC000-memory.dmp

memory/3864-2-0x00000000053A0000-0x00000000053B0000-memory.dmp

memory/3864-3-0x00000000053B0000-0x00000000055D4000-memory.dmp

memory/3864-4-0x00000000055E0000-0x0000000005806000-memory.dmp

memory/3864-6-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-5-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-8-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-10-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-12-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-14-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-16-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-18-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-20-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-22-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-24-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-26-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-28-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-30-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-32-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-36-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-38-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-34-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-40-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-42-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-44-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-46-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-48-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-52-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-56-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-62-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-60-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-58-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-54-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-64-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-68-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-66-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-50-0x00000000055E0000-0x0000000005800000-memory.dmp

memory/3864-2933-0x00000000750E0000-0x0000000075890000-memory.dmp

memory/3864-4784-0x0000000005970000-0x0000000005971000-memory.dmp

memory/3864-4785-0x0000000005CD0000-0x0000000005D3C000-memory.dmp

memory/3864-4786-0x0000000005D40000-0x0000000005D8C000-memory.dmp

memory/3864-4787-0x0000000006400000-0x00000000069A4000-memory.dmp

memory/3864-4788-0x0000000001110000-0x0000000001164000-memory.dmp

memory/3528-4792-0x00000000750E0000-0x0000000075890000-memory.dmp

memory/3864-4791-0x00000000750E0000-0x0000000075890000-memory.dmp

memory/3528-4793-0x0000000000400000-0x0000000000440000-memory.dmp

memory/3528-4794-0x00000000057B0000-0x00000000057C0000-memory.dmp

memory/3528-4795-0x00000000057C0000-0x0000000005826000-memory.dmp

memory/3528-4796-0x0000000006520000-0x0000000006570000-memory.dmp

memory/3528-4797-0x0000000006610000-0x00000000066A2000-memory.dmp

memory/3528-4798-0x00000000068F0000-0x00000000068FA000-memory.dmp

memory/3528-4799-0x00000000750E0000-0x0000000075890000-memory.dmp

memory/3528-4800-0x00000000057B0000-0x00000000057C0000-memory.dmp