Malware Analysis Report

2025-04-14 05:15

Sample ID 201230-1e6jpllqye
Target DHL_20201230,pdf.exe
SHA256 a9a4bd2de434ba7cb210b0e8bc7374db4c6df7e0e94dac78c67f3dc97ddadc4f
Tags
masslogger spyware stealer
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

a9a4bd2de434ba7cb210b0e8bc7374db4c6df7e0e94dac78c67f3dc97ddadc4f

Threat Level: Known bad

The file DHL_20201230,pdf.exe was found to be: Known bad.

Malicious Activity Summary

masslogger spyware stealer

MassLogger

MassLogger Main Payload

Suspicious use of SetThreadContext

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2020-12-30 09:15

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2020-12-30 09:15

Reported

2020-12-30 09:17

Platform

win7v20201028

Max time kernel

61s

Max time network

18s

Command Line

"C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe"

Signatures

MassLogger

stealer spyware masslogger

MassLogger Main Payload

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 340 set thread context of 1348 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 340 wrote to memory of 1348 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 340 wrote to memory of 1348 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 340 wrote to memory of 1348 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 340 wrote to memory of 1348 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 340 wrote to memory of 1348 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 340 wrote to memory of 1348 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 340 wrote to memory of 1348 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 340 wrote to memory of 1348 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 340 wrote to memory of 1348 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 1348 wrote to memory of 1564 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
PID 1348 wrote to memory of 1564 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
PID 1348 wrote to memory of 1564 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
PID 1348 wrote to memory of 1564 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe

Processes

C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe

"C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe

dw20.exe -x -s 372

Network

N/A

Files

memory/1348-3-0x0000000000400000-0x0000000000486000-memory.dmp

memory/1348-4-0x0000000000481D6E-mapping.dmp

memory/1348-5-0x0000000000400000-0x0000000000486000-memory.dmp

memory/1348-6-0x0000000000400000-0x0000000000486000-memory.dmp

memory/1564-7-0x0000000000000000-mapping.dmp

memory/1564-8-0x0000000002280000-0x0000000002291000-memory.dmp

memory/1564-9-0x0000000002380000-0x0000000002391000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2020-12-30 09:15

Reported

2020-12-30 09:17

Platform

win10v20201028

Max time kernel

70s

Max time network

129s

Command Line

"C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe"

Signatures

MassLogger

stealer spyware masslogger

MassLogger Main Payload

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
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 4020 set thread context of 2412 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeRestorePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4020 wrote to memory of 2412 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 4020 wrote to memory of 2412 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 4020 wrote to memory of 2412 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 4020 wrote to memory of 2412 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 4020 wrote to memory of 2412 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 4020 wrote to memory of 2412 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 4020 wrote to memory of 2412 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 4020 wrote to memory of 2412 N/A C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 2412 wrote to memory of 3584 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
PID 2412 wrote to memory of 3584 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
PID 2412 wrote to memory of 3584 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe

Processes

C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe

"C:\Users\Admin\AppData\Local\Temp\DHL_20201230,pdf.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe

dw20.exe -x -s 680

Network

Country Destination Domain Proto
N/A 13.107.4.52:80 www.msftconnecttest.com tcp

Files

memory/2412-5-0x0000000000400000-0x0000000000486000-memory.dmp

memory/2412-6-0x0000000000481D6E-mapping.dmp

memory/3584-7-0x0000000000000000-mapping.dmp

memory/3584-8-0x00000000025F0000-0x00000000025F1000-memory.dmp

memory/3584-9-0x0000000002960000-0x0000000002961000-memory.dmp

memory/2412-11-0x0000000000481D6E-mapping.dmp

memory/2412-10-0x0000000000481D6E-mapping.dmp

memory/2412-12-0x0000000000481D6E-mapping.dmp

memory/2412-13-0x0000000000481D6E-mapping.dmp

memory/2412-14-0x0000000000481D6E-mapping.dmp