Malware Analysis Report

2025-08-05 16:17

Sample ID 240521-cdrpvaee34
Target d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d
SHA256 d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d
Tags
agenttesla keylogger spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d

Threat Level: Known bad

The file d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d was found to be: Known bad.

Malicious Activity Summary

agenttesla keylogger spyware stealer trojan

AgentTesla

Reads WinSCP keys stored on the system

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Reads data files stored by FTP clients

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-21 01:57

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-21 01:57

Reported

2024-05-21 02:00

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Reads WinSCP keys stored on the system

spyware stealer

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4404 set thread context of 3216 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4404 wrote to memory of 1148 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 4404 wrote to memory of 1148 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 4404 wrote to memory of 1148 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 4404 wrote to memory of 3216 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 4404 wrote to memory of 3216 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 4404 wrote to memory of 3216 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 4404 wrote to memory of 3216 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 4404 wrote to memory of 3216 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 4404 wrote to memory of 3216 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 4404 wrote to memory of 3216 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 4404 wrote to memory of 3216 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 4404 wrote to memory of 4592 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 4404 wrote to memory of 4592 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 4404 wrote to memory of 4592 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe

"C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe"

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

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.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"

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 associatessystems.com udp
US 192.185.73.22:21 associatessystems.com tcp
US 192.185.73.22:30015 associatessystems.com tcp
US 8.8.8.8:53 22.73.185.192.in-addr.arpa udp
US 192.185.73.22:32752 associatessystems.com tcp
US 192.185.73.22:43489 associatessystems.com tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/4404-0-0x00007FFDB7283000-0x00007FFDB7285000-memory.dmp

memory/4404-1-0x0000018479300000-0x000001847930E000-memory.dmp

memory/4404-2-0x00007FFDB7280000-0x00007FFDB7D41000-memory.dmp

memory/4404-3-0x00007FFDB7280000-0x00007FFDB7D41000-memory.dmp

memory/4404-4-0x0000018479DC0000-0x0000018479E54000-memory.dmp

memory/3216-5-0x0000000000400000-0x0000000000442000-memory.dmp

memory/3216-6-0x000000007450E000-0x000000007450F000-memory.dmp

memory/3216-7-0x00000000058F0000-0x0000000005E94000-memory.dmp

memory/3216-8-0x00000000054B0000-0x0000000005516000-memory.dmp

memory/3216-9-0x0000000074500000-0x0000000074CB0000-memory.dmp

memory/4404-10-0x00007FFDB7280000-0x00007FFDB7D41000-memory.dmp

memory/3216-11-0x0000000006350000-0x00000000063A0000-memory.dmp

memory/3216-12-0x0000000006880000-0x0000000006912000-memory.dmp

memory/3216-13-0x0000000006850000-0x000000000685A000-memory.dmp

memory/3216-14-0x000000007450E000-0x000000007450F000-memory.dmp

memory/3216-15-0x0000000074500000-0x0000000074CB0000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-21 01:57

Reported

2024-05-21 02:00

Platform

win7-20240508-en

Max time kernel

119s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1232 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1232 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1232 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1232 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1232 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1232 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1232 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1232 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1232 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1232 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\system32\WerFault.exe
PID 1232 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\system32\WerFault.exe
PID 1232 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe

"C:\Users\Admin\AppData\Local\Temp\d91abe1f2c3533430178d0067ffc5ce588d2bd241375179829179c82d39d9e6d.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 1232 -s 624

Network

Country Destination Domain Proto
US 8.8.8.8:53 associatessystems.com udp
US 192.185.73.22:21 associatessystems.com tcp
US 192.185.73.22:37213 associatessystems.com tcp
US 192.185.73.22:34574 associatessystems.com tcp

Files

memory/1232-0-0x000007FEF5C23000-0x000007FEF5C24000-memory.dmp

memory/1232-1-0x0000000000230000-0x000000000023E000-memory.dmp

memory/1232-2-0x000007FEF5C20000-0x000007FEF660C000-memory.dmp

memory/1232-4-0x000007FEF5C20000-0x000007FEF660C000-memory.dmp

memory/1232-3-0x000007FEF5C20000-0x000007FEF660C000-memory.dmp

memory/1232-5-0x000007FEF5C20000-0x000007FEF660C000-memory.dmp

memory/1232-6-0x000000001ADD0000-0x000000001AE64000-memory.dmp

memory/2688-7-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2688-12-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2688-16-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2688-14-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2688-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2688-10-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2688-9-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2688-8-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2688-17-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

memory/2688-18-0x0000000074A80000-0x000000007516E000-memory.dmp

memory/1232-19-0x000007FEF5C23000-0x000007FEF5C24000-memory.dmp

memory/1232-20-0x000007FEF5C20000-0x000007FEF660C000-memory.dmp

memory/2688-21-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

memory/2688-22-0x0000000074A80000-0x000000007516E000-memory.dmp