Malware Analysis Report

2024-12-07 03:39

Sample ID 241110-h3aerasekb
Target c3af3b3e257b6b95fc595e537c878958a95dcfacdaa2bd9bf269777066b02dbd
SHA256 c3af3b3e257b6b95fc595e537c878958a95dcfacdaa2bd9bf269777066b02dbd
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

c3af3b3e257b6b95fc595e537c878958a95dcfacdaa2bd9bf269777066b02dbd

Threat Level: Known bad

The file c3af3b3e257b6b95fc595e537c878958a95dcfacdaa2bd9bf269777066b02dbd was found to be: Known bad.

Malicious Activity Summary

redline fusa discovery infostealer persistence

Redline family

RedLine

RedLine payload

Executes dropped EXE

Adds Run key to start application

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-10 07:15

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 07:15

Reported

2024-11-10 07:17

Platform

win10v2004-20241007-en

Max time kernel

135s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c3af3b3e257b6b95fc595e537c878958a95dcfacdaa2bd9bf269777066b02dbd.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\nnz21.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bka82.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_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\c3af3b3e257b6b95fc595e537c878958a95dcfacdaa2bd9bf269777066b02dbd.exe N/A
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\nnz21.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\c3af3b3e257b6b95fc595e537c878958a95dcfacdaa2bd9bf269777066b02dbd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nnz21.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bka82.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c3af3b3e257b6b95fc595e537c878958a95dcfacdaa2bd9bf269777066b02dbd.exe

"C:\Users\Admin\AppData\Local\Temp\c3af3b3e257b6b95fc595e537c878958a95dcfacdaa2bd9bf269777066b02dbd.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nnz21.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nnz21.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bka82.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bka82.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
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 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
RU 193.233.20.12:4132 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 98.117.19.2.in-addr.arpa udp
RU 193.233.20.12:4132 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
RU 193.233.20.12:4132 tcp
US 8.8.8.8:53 48.229.111.52.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\nnz21.exe

MD5 629d91287b7be666838d252779ceb061
SHA1 02ced8fd1a05a21b12ac35a50079ec2f9244eeab
SHA256 a0c060e633d10124acc72f47266b26da5d3235c417a981e510f6886b0ca31b46
SHA512 80b105baf2f055be8c89d2d9a19715ac3682559116c09550c618e14e1276405a721e9a36e8d4e7f43a3d3f164b75e93babe46f5f39ac85a6dc4cb3f1952f753f

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bka82.exe

MD5 da6f3bef8abc85bd09f50783059964e3
SHA1 a0f25f60ec1896c4c920ea397f40e6ce29724322
SHA256 e6d9ee8ab0ea2ade6e5a9481d8f0f921427ec6919b1b48c6067570fde270736b
SHA512 4d2e1472b114c98c74900b8305aabbc49ba28edffdc2376206cf02e26593df4e444933b3aa19f0c6cd0ae3ac3133d656433574aaf25a57748758e5dd25edfbec

memory/1236-14-0x000000007461E000-0x000000007461F000-memory.dmp

memory/1236-15-0x0000000000DA0000-0x0000000000DD2000-memory.dmp

memory/1236-16-0x0000000005D00000-0x0000000006318000-memory.dmp

memory/1236-17-0x0000000005880000-0x000000000598A000-memory.dmp

memory/1236-18-0x00000000057B0000-0x00000000057C2000-memory.dmp

memory/1236-19-0x0000000005810000-0x000000000584C000-memory.dmp

memory/1236-20-0x0000000005990000-0x00000000059DC000-memory.dmp

memory/1236-21-0x000000007461E000-0x000000007461F000-memory.dmp