Malware Analysis Report

2024-11-15 06:18

Sample ID 240227-qtl17aaa62
Target a948976eded517477a4f71a15578a9e1
SHA256 73dea3ec1437dd358cc7c48d80bcd41001c79bf344a3039908159a9bed5d8583
Tags
lumma 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

73dea3ec1437dd358cc7c48d80bcd41001c79bf344a3039908159a9bed5d8583

Threat Level: Known bad

The file a948976eded517477a4f71a15578a9e1 was found to be: Known bad.

Malicious Activity Summary

lumma stealer

Lumma Stealer

Detect Lumma Stealer payload V4

Lumma family

Executes dropped EXE

Loads dropped DLL

Drops file in System32 directory

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-02-27 13:33

Signatures

Detect Lumma Stealer payload V4

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

Lumma family

lumma

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-27 13:33

Reported

2024-02-27 13:35

Platform

win7-20240221-en

Max time kernel

148s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a948976eded517477a4f71a15578a9e1.exe"

Signatures

Detect Lumma Stealer payload V4

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

Lumma Stealer

stealer lumma

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\lass.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File opened for modification C:\Windows\SysWOW64\lass.exe C:\Users\Admin\AppData\Local\Temp\a948976eded517477a4f71a15578a9e1.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe C:\Users\Admin\AppData\Local\Temp\a948976eded517477a4f71a15578a9e1.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a948976eded517477a4f71a15578a9e1.exe

"C:\Users\Admin\AppData\Local\Temp\a948976eded517477a4f71a15578a9e1.exe"

C:\Windows\SysWOW64\lass.exe

C:\Windows\system32\lass.exe

Network

N/A

Files

\Windows\SysWOW64\lass.exe

MD5 a948976eded517477a4f71a15578a9e1
SHA1 3762de142aae4044829461ed186a9b397e668d1f
SHA256 73dea3ec1437dd358cc7c48d80bcd41001c79bf344a3039908159a9bed5d8583
SHA512 f935453f15ba296b47be1c273f97512eefb61659065442024db92c864d2edfe281b252fb91c8e39111dab26d10747c821285799e11e38c11a835d28d8ec5117f

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-27 13:33

Reported

2024-02-27 13:35

Platform

win10v2004-20240226-en

Max time kernel

147s

Max time network

112s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a948976eded517477a4f71a15578a9e1.exe"

Signatures

Detect Lumma Stealer payload V4

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

Lumma Stealer

stealer lumma

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\lass.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe C:\Users\Admin\AppData\Local\Temp\a948976eded517477a4f71a15578a9e1.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File created C:\Windows\SysWOW64\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe\lass.exe C:\Windows\SysWOW64\lass.exe N/A
File opened for modification C:\Windows\SysWOW64\lass.exe C:\Users\Admin\AppData\Local\Temp\a948976eded517477a4f71a15578a9e1.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a948976eded517477a4f71a15578a9e1.exe

"C:\Users\Admin\AppData\Local\Temp\a948976eded517477a4f71a15578a9e1.exe"

C:\Windows\SysWOW64\lass.exe

C:\Windows\system32\lass.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 179.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 172.178.17.96.in-addr.arpa udp

Files

C:\Windows\SysWOW64\lass.exe

MD5 a948976eded517477a4f71a15578a9e1
SHA1 3762de142aae4044829461ed186a9b397e668d1f
SHA256 73dea3ec1437dd358cc7c48d80bcd41001c79bf344a3039908159a9bed5d8583
SHA512 f935453f15ba296b47be1c273f97512eefb61659065442024db92c864d2edfe281b252fb91c8e39111dab26d10747c821285799e11e38c11a835d28d8ec5117f