Malware Analysis Report

2024-10-19 09:23

Sample ID 240612-cgnglaydja
Target b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe
SHA256 b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106
Tags
agenttesla keylogger spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106

Threat Level: Known bad

The file b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe was found to be: Known bad.

Malicious Activity Summary

agenttesla keylogger spyware stealer trojan

AgentTesla

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

Detects executables packed with or use KoiVM

Detect packed .NET executables. Mostly AgentTeslaV4.

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

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

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

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-12 02:03

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 02:03

Reported

2024-06-12 02:05

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1416 set thread context of 3640 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1416 wrote to memory of 2472 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1416 wrote to memory of 2472 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1416 wrote to memory of 2472 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1416 wrote to memory of 3640 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1416 wrote to memory of 3640 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1416 wrote to memory of 3640 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1416 wrote to memory of 3640 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1416 wrote to memory of 3640 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1416 wrote to memory of 3640 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1416 wrote to memory of 3640 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1416 wrote to memory of 3640 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1416 wrote to memory of 3792 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1416 wrote to memory of 3792 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1416 wrote to memory of 3792 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe

"C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.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\regsvcs.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\regsvcs.exe"

Network

Files

memory/1416-0-0x00007FFA4C3A3000-0x00007FFA4C3A5000-memory.dmp

memory/1416-1-0x0000025A2BFE0000-0x0000025A2C226000-memory.dmp

memory/1416-2-0x00007FFA4C3A0000-0x00007FFA4CE61000-memory.dmp

memory/1416-3-0x0000025A46C60000-0x0000025A46CF2000-memory.dmp

memory/3640-4-0x0000000000400000-0x0000000000440000-memory.dmp

memory/3640-5-0x000000007545E000-0x000000007545F000-memory.dmp

memory/3640-6-0x00000000055D0000-0x0000000005B74000-memory.dmp

memory/3640-7-0x0000000005120000-0x0000000005186000-memory.dmp

memory/3640-8-0x0000000075450000-0x0000000075C00000-memory.dmp

memory/1416-9-0x00007FFA4C3A0000-0x00007FFA4CE61000-memory.dmp

memory/3640-10-0x0000000006050000-0x00000000060A0000-memory.dmp

memory/3640-11-0x0000000006140000-0x00000000061D2000-memory.dmp

memory/3640-12-0x00000000062E0000-0x00000000062EA000-memory.dmp

memory/3640-13-0x000000007545E000-0x000000007545F000-memory.dmp

memory/3640-14-0x0000000075450000-0x0000000075C00000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 02:03

Reported

2024-06-12 02:05

Platform

win7-20240221-en

Max time kernel

118s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1968 set thread context of 2308 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1968 wrote to memory of 2228 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 1968 wrote to memory of 2228 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 1968 wrote to memory of 2228 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 1968 wrote to memory of 2228 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 1968 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1968 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1968 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1968 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1968 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1968 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1968 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1968 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1968 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1968 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1968 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1968 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 1968 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\system32\WerFault.exe
PID 1968 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\system32\WerFault.exe
PID 1968 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe

"C:\Users\Admin\AppData\Local\Temp\b61ac5944e5ea917cdfafc56beff6b0c14c073aea71336f939bae1a7bb432106.exe"

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

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

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

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

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 1968 -s 664

Network

N/A

Files

memory/1968-0-0x000007FEF6173000-0x000007FEF6174000-memory.dmp

memory/1968-1-0x0000000001000000-0x0000000001246000-memory.dmp

memory/1968-2-0x000007FEF6170000-0x000007FEF6B5C000-memory.dmp

memory/1968-3-0x000000001B4E0000-0x000000001B572000-memory.dmp

memory/2308-4-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2308-6-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2308-15-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2308-17-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2308-13-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2308-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2308-10-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2308-8-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2308-18-0x0000000074D2E000-0x0000000074D2F000-memory.dmp

memory/2308-19-0x0000000074D20000-0x000000007540E000-memory.dmp

memory/1968-20-0x000007FEF6173000-0x000007FEF6174000-memory.dmp

memory/1968-21-0x000007FEF6170000-0x000007FEF6B5C000-memory.dmp

memory/2308-22-0x0000000074D2E000-0x0000000074D2F000-memory.dmp

memory/2308-23-0x0000000074D20000-0x000000007540E000-memory.dmp