Malware Analysis Report

2024-10-23 21:59

Sample ID 240612-ccw8yaycll
Target a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe
SHA256 a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6
Tags
agenttesla keylogger 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

a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6

Threat Level: Known bad

The file a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe was found to be: Known bad.

Malicious Activity Summary

agenttesla keylogger spyware stealer trojan

AgentTesla

Detects executables packed with or use KoiVM

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Detects executables referencing Windows vault credential objects. Observed in infostealers

Detect packed .NET executables. Mostly AgentTeslaV4.

Detects executables referencing many email and collaboration clients. Observed in information stealers

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Detects executables referencing many file transfer clients. Observed in information stealers

Looks up external IP address via web service

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-12 01:56

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 01:56

Reported

2024-06-12 01:59

Platform

win7-20240220-en

Max time kernel

137s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Detect packed .NET executables. Mostly AgentTeslaV4.

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

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

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

Detects executables packed with or use KoiVM

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

Detects executables referencing Windows vault credential objects. Observed in infostealers

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

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

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

Detects executables referencing many email and collaboration clients. Observed in information stealers

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

Detects executables referencing many file transfer clients. Observed in information stealers

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

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A
N/A api.ipify.org N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1856 set thread context of 2960 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe N/A

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1856 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 1856 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 1856 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 1856 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 1856 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 1856 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 1856 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 1856 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 1856 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1856 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1856 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1856 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1856 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1856 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1856 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1856 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1856 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1856 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1856 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1856 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1856 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1856 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1856 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1856 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1856 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1856 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1856 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1856 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe

"C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.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\regsvcs.exe

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

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 api.ipify.org udp
US 172.67.74.152:443 api.ipify.org tcp

Files

memory/1856-0-0x000007FEF5BA3000-0x000007FEF5BA4000-memory.dmp

memory/1856-1-0x00000000008A0000-0x00000000008AC000-memory.dmp

memory/1856-2-0x000007FEF5BA0000-0x000007FEF658C000-memory.dmp

memory/1856-3-0x000000001B0E0000-0x000000001B172000-memory.dmp

memory/2888-4-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2888-9-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2888-8-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2888-6-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2960-21-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2960-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2960-19-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2960-18-0x0000000000400000-0x0000000000440000-memory.dmp

memory/1856-22-0x000007FEF5BA0000-0x000007FEF658C000-memory.dmp

memory/2960-23-0x000000007488E000-0x000000007488F000-memory.dmp

memory/2960-24-0x0000000074880000-0x0000000074F6E000-memory.dmp

memory/2960-25-0x000000007488E000-0x000000007488F000-memory.dmp

memory/2960-26-0x0000000074880000-0x0000000074F6E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 01:56

Reported

2024-06-12 01:59

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

56s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Detect packed .NET executables. Mostly AgentTeslaV4.

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

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

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

Detects executables packed with or use KoiVM

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

Detects executables referencing Windows vault credential objects. Observed in infostealers

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

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

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

Detects executables referencing many email and collaboration clients. Observed in information stealers

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

Detects executables referencing many file transfer clients. Observed in information stealers

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

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4668 set thread context of 1072 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe N/A

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4668 wrote to memory of 1072 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 4668 wrote to memory of 1072 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 4668 wrote to memory of 1072 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 4668 wrote to memory of 1072 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 4668 wrote to memory of 1072 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 4668 wrote to memory of 1072 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 4668 wrote to memory of 1072 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 4668 wrote to memory of 1072 N/A C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe

"C:\Users\Admin\AppData\Local\Temp\a3d0339ed9baefeedb6cb984e3e6fcafeb59dab6484c0b75e44a6c24b1cd31f6.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 api.ipify.org udp

Files

memory/4668-0-0x00007FFD5BCF3000-0x00007FFD5BCF5000-memory.dmp

memory/4668-1-0x000001D029E20000-0x000001D029E2C000-memory.dmp

memory/4668-2-0x00007FFD5BCF0000-0x00007FFD5C7B1000-memory.dmp

memory/4668-3-0x000001D045570000-0x000001D045602000-memory.dmp

memory/1072-4-0x0000000000400000-0x0000000000440000-memory.dmp

memory/1072-5-0x0000000074E6E000-0x0000000074E6F000-memory.dmp

memory/1072-6-0x0000000005920000-0x0000000005EC4000-memory.dmp

memory/1072-7-0x0000000005100000-0x0000000005166000-memory.dmp

memory/1072-8-0x0000000074E60000-0x0000000075610000-memory.dmp

memory/4668-9-0x00007FFD5BCF0000-0x00007FFD5C7B1000-memory.dmp

memory/1072-10-0x0000000006800000-0x0000000006850000-memory.dmp

memory/1072-11-0x00000000068F0000-0x0000000006982000-memory.dmp

memory/1072-12-0x00000000068B0000-0x00000000068BA000-memory.dmp

memory/1072-13-0x0000000074E6E000-0x0000000074E6F000-memory.dmp

memory/1072-14-0x0000000074E60000-0x0000000075610000-memory.dmp