Malware Analysis Report

2024-10-23 21:59

Sample ID 240612-ccr9zsyckg
Target a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe
SHA256 a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265
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: 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

a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265

Threat Level: Known bad

The file a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe was found to be: Known bad.

Malicious Activity Summary

agenttesla keylogger spyware stealer trojan

AgentTesla

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

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

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

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

Detects executables referencing Windows vault credential objects. Observed in infostealers

Detects executables packed with or use KoiVM

Detect packed .NET executables. Mostly AgentTeslaV4.

Reads WinSCP keys stored on the system

Reads user/profile data of local email clients

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Looks up external IP address via web service

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

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 01:58

Platform

win7-20240221-en

Max time kernel

141s

Max time network

161s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.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

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

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 2656 set thread context of 1684 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.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:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe N/A
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 2656 wrote to memory of 1684 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2656 wrote to memory of 1684 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2656 wrote to memory of 1684 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2656 wrote to memory of 1684 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2656 wrote to memory of 1684 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2656 wrote to memory of 1684 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2656 wrote to memory of 1684 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2656 wrote to memory of 1684 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2656 wrote to memory of 1684 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2656 wrote to memory of 1684 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2656 wrote to memory of 1684 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2656 wrote to memory of 1684 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2656 wrote to memory of 2772 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\system32\WerFault.exe
PID 2656 wrote to memory of 2772 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\system32\WerFault.exe
PID 2656 wrote to memory of 2772 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe

"C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe"

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

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

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2656 -s 676

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/2656-0-0x000007FEF5813000-0x000007FEF5814000-memory.dmp

memory/2656-1-0x0000000001050000-0x000000000106E000-memory.dmp

memory/2656-2-0x000007FEF5810000-0x000007FEF61FC000-memory.dmp

memory/2656-3-0x000000001A7F0000-0x000000001A884000-memory.dmp

memory/1684-5-0x0000000000400000-0x0000000000440000-memory.dmp

memory/1684-11-0x0000000000400000-0x0000000000440000-memory.dmp

memory/1684-15-0x0000000000400000-0x0000000000440000-memory.dmp

memory/1684-13-0x0000000000400000-0x0000000000440000-memory.dmp

memory/1684-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1684-8-0x0000000000400000-0x0000000000440000-memory.dmp

memory/1684-6-0x0000000000400000-0x0000000000440000-memory.dmp

memory/1684-9-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2656-16-0x000007FEF5813000-0x000007FEF5814000-memory.dmp

memory/2656-17-0x000007FEF5810000-0x000007FEF61FC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 01:56

Reported

2024-06-12 01:58

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.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

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

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 2764 set thread context of 2412 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.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:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe N/A
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 2764 wrote to memory of 2412 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2764 wrote to memory of 2412 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2764 wrote to memory of 2412 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2764 wrote to memory of 2412 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2764 wrote to memory of 2412 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2764 wrote to memory of 2412 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2764 wrote to memory of 2412 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2764 wrote to memory of 2412 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2764 wrote to memory of 4620 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2764 wrote to memory of 4620 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2764 wrote to memory of 4620 N/A C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe

"C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.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 g.bing.com udp
US 8.8.8.8:53 api.ipify.org udp
US 204.79.197.237:443 g.bing.com tcp
US 104.26.12.205:443 api.ipify.org tcp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 205.12.26.104.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 52.111.227.13:443 tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/2764-1-0x0000017CA82A0000-0x0000017CA82BE000-memory.dmp

memory/2764-0-0x00007FF94A5B3000-0x00007FF94A5B5000-memory.dmp

memory/2764-2-0x00007FF94A5B0000-0x00007FF94B071000-memory.dmp

memory/2764-3-0x0000017CC3C40000-0x0000017CC3CD4000-memory.dmp

memory/2412-4-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2412-5-0x000000007411E000-0x000000007411F000-memory.dmp

memory/2412-6-0x0000000005E50000-0x00000000063F4000-memory.dmp

memory/2412-7-0x0000000005910000-0x0000000005976000-memory.dmp

memory/2412-8-0x0000000074110000-0x00000000748C0000-memory.dmp

memory/2764-9-0x00007FF94A5B0000-0x00007FF94B071000-memory.dmp

memory/2412-10-0x0000000006C10000-0x0000000006C60000-memory.dmp

memory/2412-11-0x0000000006D00000-0x0000000006D92000-memory.dmp

memory/2412-12-0x0000000006C80000-0x0000000006C8A000-memory.dmp

memory/2412-13-0x000000007411E000-0x000000007411F000-memory.dmp

memory/2412-14-0x0000000074110000-0x00000000748C0000-memory.dmp