Malware Analysis Report

2025-08-05 14:43

Sample ID 250701-h6zh2s1ydz
Target 379727978b4de18a48e9f77851f8e114.exe
SHA256 b2d8f6b7d67fb733ae5ab63ec1d942d62085b584be9b113e130a80c406d248d8
Tags
lumma discovery stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V16

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

b2d8f6b7d67fb733ae5ab63ec1d942d62085b584be9b113e130a80c406d248d8

Threat Level: Known bad

The file 379727978b4de18a48e9f77851f8e114.exe was found to be: Known bad.

Malicious Activity Summary

lumma discovery stealer

Lumma Stealer, LummaC

Lumma family

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-07-01 07:21

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-07-01 07:21

Reported

2025-07-01 07:24

Platform

win10v2004-20250610-en

Max time kernel

106s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe"

Signatures

Lumma Stealer, LummaC

stealer lumma

Lumma family

lumma

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3556 set thread context of 5212 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3556 wrote to memory of 5212 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3556 wrote to memory of 5212 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3556 wrote to memory of 5212 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3556 wrote to memory of 5212 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3556 wrote to memory of 5212 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3556 wrote to memory of 5212 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3556 wrote to memory of 5212 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3556 wrote to memory of 5212 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3556 wrote to memory of 5212 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Processes

C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe

"C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.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 t.me udp
NL 149.154.167.99:443 t.me tcp
US 8.8.8.8:53 swenku.xyz udp
US 144.172.115.212:443 swenku.xyz tcp
US 144.172.115.212:443 swenku.xyz tcp
US 144.172.115.212:443 swenku.xyz tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.179.227:80 c.pki.goog tcp

Files

memory/5212-0-0x0000000000400000-0x000000000045D000-memory.dmp

memory/5212-2-0x0000000000400000-0x000000000045D000-memory.dmp

memory/5212-3-0x0000000000400000-0x000000000045D000-memory.dmp

memory/5212-4-0x0000000000400000-0x000000000045D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-07-01 07:21

Reported

2025-07-01 07:24

Platform

win11-20250619-en

Max time kernel

98s

Max time network

99s

Command Line

"C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe"

Signatures

Lumma Stealer, LummaC

stealer lumma

Lumma family

lumma

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4204 set thread context of 4028 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4204 wrote to memory of 4028 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 4204 wrote to memory of 4028 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 4204 wrote to memory of 4028 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 4204 wrote to memory of 4028 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 4204 wrote to memory of 4028 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 4204 wrote to memory of 4028 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 4204 wrote to memory of 4028 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 4204 wrote to memory of 4028 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 4204 wrote to memory of 4028 N/A C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Processes

C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.exe

"C:\Users\Admin\AppData\Local\Temp\379727978b4de18a48e9f77851f8e114.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 t.me udp
NL 149.154.167.99:443 t.me tcp
US 8.8.8.8:53 swenku.xyz udp
US 144.172.115.212:443 swenku.xyz tcp
US 144.172.115.212:443 swenku.xyz tcp
US 144.172.115.212:443 swenku.xyz tcp

Files

memory/4028-0-0x0000000000400000-0x000000000045D000-memory.dmp

memory/4028-2-0x0000000000400000-0x000000000045D000-memory.dmp

memory/4028-3-0x0000000000400000-0x000000000045D000-memory.dmp

memory/4028-6-0x0000000000400000-0x000000000045D000-memory.dmp