Malware Analysis Report

2024-11-15 06:15

Sample ID 240224-z76r7afe8t
Target a2c6d851a502187a0146351ba636c1d1
SHA256 1b77cac1dad528685fb7f2f19ddff24e6080a0024039671db5774b4a7ffbf68c
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

1b77cac1dad528685fb7f2f19ddff24e6080a0024039671db5774b4a7ffbf68c

Threat Level: Known bad

The file a2c6d851a502187a0146351ba636c1d1 was found to be: Known bad.

Malicious Activity Summary

lumma stealer

Detect Lumma Stealer payload V4

Lumma Stealer

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

2024-02-24 21:22

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-24 21:22

Reported

2024-02-24 21:25

Platform

win7-20240221-en

Max time kernel

148s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe"

Signatures

Detect Lumma Stealer payload V4

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

Lumma Stealer

stealer lumma

Executes dropped EXE

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

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File opened for modification C:\Windows\SysWOW64\winscrne.exe C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe C:\Windows\SysWOW64\winscrne.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe

"C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe"

C:\Windows\SysWOW64\winscrne.exe

C:\Windows\system32\winscrne.exe

Network

N/A

Files

memory/1244-0-0x0000000000400000-0x00000000007C8000-memory.dmp

memory/1244-1-0x00000000021F0000-0x0000000002300000-memory.dmp

\Windows\SysWOW64\winscrne.exe

MD5 a2c6d851a502187a0146351ba636c1d1
SHA1 1a865903b5e20020083ef5d6dc99292b58024e5c
SHA256 1b77cac1dad528685fb7f2f19ddff24e6080a0024039671db5774b4a7ffbf68c
SHA512 b79432127887a718f8707e5e767296b11f2cc8ff55da513f3bcf5c93b79f4bea9d9e5135c2d024ac05ac3fb7543133a07c22e270ed00761a0955f6b0374b4200

memory/1244-12-0x0000000000400000-0x00000000007C8000-memory.dmp

memory/1244-11-0x0000000002CC0000-0x0000000003088000-memory.dmp

memory/1668-13-0x0000000002140000-0x0000000002250000-memory.dmp

memory/1244-17-0x0000000002CC0000-0x0000000003088000-memory.dmp

memory/1668-18-0x0000000000400000-0x00000000007C8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-24 21:22

Reported

2024-02-24 21:25

Platform

win10v2004-20240221-en

Max time kernel

146s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe"

Signatures

Detect Lumma Stealer payload V4

Description Indicator Process Target
N/A N/A N/A N/A
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\winscrne.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\winscrne.exe C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe N/A
File created C:\Windows\SysWOW64\winscrne.exe C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe

"C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe"

C:\Windows\SysWOW64\winscrne.exe

C:\Windows\system32\winscrne.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 181.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 210.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 14.173.189.20.in-addr.arpa udp

Files

memory/3988-0-0x0000000000400000-0x00000000007C8000-memory.dmp

memory/3988-1-0x0000000002730000-0x0000000002820000-memory.dmp

C:\Windows\SysWOW64\winscrne.exe

MD5 a2c6d851a502187a0146351ba636c1d1
SHA1 1a865903b5e20020083ef5d6dc99292b58024e5c
SHA256 1b77cac1dad528685fb7f2f19ddff24e6080a0024039671db5774b4a7ffbf68c
SHA512 b79432127887a718f8707e5e767296b11f2cc8ff55da513f3bcf5c93b79f4bea9d9e5135c2d024ac05ac3fb7543133a07c22e270ed00761a0955f6b0374b4200

memory/1080-7-0x0000000000400000-0x00000000007C8000-memory.dmp

memory/1080-9-0x0000000002720000-0x0000000002810000-memory.dmp

memory/3988-8-0x0000000000400000-0x00000000007C8000-memory.dmp

memory/3988-10-0x0000000002730000-0x0000000002820000-memory.dmp

memory/1080-13-0x0000000000400000-0x00000000007C8000-memory.dmp