Malware Analysis Report

2024-12-07 03:39

Sample ID 241111-aymwaa1qhl
Target 4daa9b3b6ac3126cc5f83378d29511125db8f0870e45bb9ef89a13e57c227751
SHA256 4daa9b3b6ac3126cc5f83378d29511125db8f0870e45bb9ef89a13e57c227751
Tags
redline fusa discovery infostealer persistence
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 Overview

score
10/10

SHA256

4daa9b3b6ac3126cc5f83378d29511125db8f0870e45bb9ef89a13e57c227751

Threat Level: Known bad

The file 4daa9b3b6ac3126cc5f83378d29511125db8f0870e45bb9ef89a13e57c227751 was found to be: Known bad.

Malicious Activity Summary

redline fusa discovery infostealer persistence

RedLine

RedLine payload

Redline family

Executes dropped EXE

Adds Run key to start application

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 00:37

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-11 00:37

Reported

2024-11-11 00:39

Platform

win10v2004-20241007-en

Max time kernel

131s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4daa9b3b6ac3126cc5f83378d29511125db8f0870e45bb9ef89a13e57c227751.exe"

Signatures

RedLine

infostealer redline

RedLine payload

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

Redline family

redline

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nAQ26.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\byw42.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nAQ26.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\4daa9b3b6ac3126cc5f83378d29511125db8f0870e45bb9ef89a13e57c227751.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4daa9b3b6ac3126cc5f83378d29511125db8f0870e45bb9ef89a13e57c227751.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nAQ26.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\byw42.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4daa9b3b6ac3126cc5f83378d29511125db8f0870e45bb9ef89a13e57c227751.exe

"C:\Users\Admin\AppData\Local\Temp\4daa9b3b6ac3126cc5f83378d29511125db8f0870e45bb9ef89a13e57c227751.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nAQ26.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nAQ26.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\byw42.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\byw42.exe

Network

Country Destination Domain Proto
RU 193.233.20.12:4132 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
RU 193.233.20.12:4132 tcp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
RU 193.233.20.12:4132 tcp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
RU 193.233.20.12:4132 tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
RU 193.233.20.12:4132 tcp
RU 193.233.20.12:4132 tcp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nAQ26.exe

MD5 3ffa2d6a1f0f7972052b2c6d6c7ebae9
SHA1 bb69be698aa54d528514d1e4329742f526dc79d3
SHA256 94a04041625bc2f8855b089febd2397bef196496fcc56fa510415e58001e9ad7
SHA512 91153e212fe75e71535665e6285f77f9f1c608ffcdff68c9173bae7c2cbe7a5c78ab94f32325ade9983404d6eb922656b7778ddcf70cb79cbd5cf11213ef4b4a

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\byw42.exe

MD5 da6f3bef8abc85bd09f50783059964e3
SHA1 a0f25f60ec1896c4c920ea397f40e6ce29724322
SHA256 e6d9ee8ab0ea2ade6e5a9481d8f0f921427ec6919b1b48c6067570fde270736b
SHA512 4d2e1472b114c98c74900b8305aabbc49ba28edffdc2376206cf02e26593df4e444933b3aa19f0c6cd0ae3ac3133d656433574aaf25a57748758e5dd25edfbec

memory/1004-14-0x000000007496E000-0x000000007496F000-memory.dmp

memory/1004-15-0x0000000000740000-0x0000000000772000-memory.dmp

memory/1004-16-0x0000000005560000-0x0000000005B78000-memory.dmp

memory/1004-17-0x00000000050E0000-0x00000000051EA000-memory.dmp

memory/1004-18-0x0000000005010000-0x0000000005022000-memory.dmp

memory/1004-19-0x0000000005070000-0x00000000050AC000-memory.dmp

memory/1004-20-0x00000000051F0000-0x000000000523C000-memory.dmp

memory/1004-21-0x000000007496E000-0x000000007496F000-memory.dmp