Malware Analysis Report

2024-10-19 09:22

Sample ID 240612-csdrjayfjl
Target d34512e149774ba06eb46d4678af8b8a6995fa019bc9bc352687d11915646837.vbe
SHA256 d34512e149774ba06eb46d4678af8b8a6995fa019bc9bc352687d11915646837
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

d34512e149774ba06eb46d4678af8b8a6995fa019bc9bc352687d11915646837

Threat Level: Known bad

The file d34512e149774ba06eb46d4678af8b8a6995fa019bc9bc352687d11915646837.vbe was found to be: Known bad.

Malicious Activity Summary

agenttesla keylogger spyware stealer trojan

AgentTesla

Detects executables referencing Windows vault credential objects. Observed in infostealers

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

Detect packed .NET executables. Mostly AgentTeslaV4.

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

Executes dropped EXE

Checks computer location settings

Looks up external IP address via web service

Suspicious use of SetThreadContext

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-12 02:20

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 02:20

Reported

2024-06-12 02:22

Platform

win7-20240508-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\d34512e149774ba06eb46d4678af8b8a6995fa019bc9bc352687d11915646837.vbe"

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 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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\x.exe 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 2716 set thread context of 2664 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2908 wrote to memory of 2716 N/A C:\Windows\System32\WScript.exe C:\Users\Admin\AppData\Local\Temp\x.exe
PID 2908 wrote to memory of 2716 N/A C:\Windows\System32\WScript.exe C:\Users\Admin\AppData\Local\Temp\x.exe
PID 2908 wrote to memory of 2716 N/A C:\Windows\System32\WScript.exe C:\Users\Admin\AppData\Local\Temp\x.exe
PID 2908 wrote to memory of 2716 N/A C:\Windows\System32\WScript.exe C:\Users\Admin\AppData\Local\Temp\x.exe
PID 2716 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2716 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2716 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2716 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2716 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2716 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2716 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2716 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2716 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe

Processes

C:\Windows\System32\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\d34512e149774ba06eb46d4678af8b8a6995fa019bc9bc352687d11915646837.vbe"

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

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

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

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

Network

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

Files

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

MD5 b00a0fe1481355a44e42eb0c8df8535a
SHA1 a564004203522c9f78334d5442fcfd11e1e292ce
SHA256 9b2071e0c54d09643e5d6bcaff25e747f2461ea0b1b062753a137489b7596d84
SHA512 4697ca800e7eac2c07ea16800eb73170aebfc2898eb1002e9867dea746abd5fba7bbfdc1ab1c9575fd59c46f29d5f594c74599a7397c32b89c58bd6bf07a13dc

memory/2716-6-0x000000007420E000-0x000000007420F000-memory.dmp

memory/2716-7-0x00000000011C0000-0x00000000012AE000-memory.dmp

memory/2664-8-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2664-10-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2664-9-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2664-19-0x0000000073B1E000-0x0000000073B1F000-memory.dmp

memory/2664-18-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2664-16-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2664-14-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2664-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2664-11-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2664-20-0x0000000073B10000-0x00000000741FE000-memory.dmp

memory/2664-21-0x0000000073B1E000-0x0000000073B1F000-memory.dmp

memory/2664-22-0x0000000073B10000-0x00000000741FE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 02:20

Reported

2024-06-12 02:22

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

52s

Command Line

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\d34512e149774ba06eb46d4678af8b8a6995fa019bc9bc352687d11915646837.vbe"

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 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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Windows\System32\WScript.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\x.exe 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 4264 set thread context of 2304 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1124 wrote to memory of 4264 N/A C:\Windows\System32\WScript.exe C:\Users\Admin\AppData\Local\Temp\x.exe
PID 1124 wrote to memory of 4264 N/A C:\Windows\System32\WScript.exe C:\Users\Admin\AppData\Local\Temp\x.exe
PID 1124 wrote to memory of 4264 N/A C:\Windows\System32\WScript.exe C:\Users\Admin\AppData\Local\Temp\x.exe
PID 4264 wrote to memory of 3972 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 4264 wrote to memory of 3972 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 4264 wrote to memory of 3972 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 4264 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 4264 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 4264 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 4264 wrote to memory of 2304 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 4264 wrote to memory of 2304 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 4264 wrote to memory of 2304 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 4264 wrote to memory of 2304 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 4264 wrote to memory of 2304 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 4264 wrote to memory of 2304 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 4264 wrote to memory of 2304 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 4264 wrote to memory of 2304 N/A C:\Users\Admin\AppData\Local\Temp\x.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe

Processes

C:\Windows\System32\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\d34512e149774ba06eb46d4678af8b8a6995fa019bc9bc352687d11915646837.vbe"

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

"C:\Users\Admin\AppData\Local\Temp\x.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\Caspol.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\Caspol.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 api.ipify.org udp
US 8.8.8.8:53 mail.cash4cars.nz udp

Files

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

MD5 b00a0fe1481355a44e42eb0c8df8535a
SHA1 a564004203522c9f78334d5442fcfd11e1e292ce
SHA256 9b2071e0c54d09643e5d6bcaff25e747f2461ea0b1b062753a137489b7596d84
SHA512 4697ca800e7eac2c07ea16800eb73170aebfc2898eb1002e9867dea746abd5fba7bbfdc1ab1c9575fd59c46f29d5f594c74599a7397c32b89c58bd6bf07a13dc

memory/4264-11-0x000000007467E000-0x000000007467F000-memory.dmp

memory/4264-12-0x0000000000CD0000-0x0000000000DBE000-memory.dmp

memory/2304-13-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2304-15-0x0000000074670000-0x0000000074E20000-memory.dmp

memory/2304-16-0x0000000005950000-0x0000000005EF4000-memory.dmp

memory/2304-17-0x0000000074670000-0x0000000074E20000-memory.dmp

memory/2304-18-0x00000000052A0000-0x0000000005306000-memory.dmp

memory/2304-19-0x0000000006800000-0x0000000006850000-memory.dmp

memory/2304-20-0x00000000068F0000-0x000000000698C000-memory.dmp

memory/2304-21-0x0000000074670000-0x0000000074E20000-memory.dmp

memory/2304-22-0x0000000006A30000-0x0000000006AC2000-memory.dmp

memory/2304-23-0x0000000006990000-0x000000000699A000-memory.dmp