Malware Analysis Report

2024-12-07 03:37

Sample ID 241111-f4h26stemj
Target a4200c6d528e834301010a8027298cff123c40d64c6296ca631814a549d4a4b5
SHA256 a4200c6d528e834301010a8027298cff123c40d64c6296ca631814a549d4a4b5
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

a4200c6d528e834301010a8027298cff123c40d64c6296ca631814a549d4a4b5

Threat Level: Known bad

The file a4200c6d528e834301010a8027298cff123c40d64c6296ca631814a549d4a4b5 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 05:25

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-11 05:25

Reported

2024-11-11 05:28

Platform

win10v2004-20241007-en

Max time kernel

150s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a4200c6d528e834301010a8027298cff123c40d64c6296ca631814a549d4a4b5.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\nbb45.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\brD59.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\nbb45.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\a4200c6d528e834301010a8027298cff123c40d64c6296ca631814a549d4a4b5.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\a4200c6d528e834301010a8027298cff123c40d64c6296ca631814a549d4a4b5.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nbb45.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\brD59.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a4200c6d528e834301010a8027298cff123c40d64c6296ca631814a549d4a4b5.exe

"C:\Users\Admin\AppData\Local\Temp\a4200c6d528e834301010a8027298cff123c40d64c6296ca631814a549d4a4b5.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nbb45.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nbb45.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\brD59.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\brD59.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
RU 193.233.20.12:4132 tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
RU 193.233.20.12:4132 tcp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
RU 193.233.20.12:4132 tcp
US 8.8.8.8:53 83.210.23.2.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
US 8.8.8.8:53 12.173.189.20.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nbb45.exe

MD5 27ff8ed09db43be164e098c03e8db5b4
SHA1 f06efbb2a9228cbc4cc5bb7b00e57dc30eec6911
SHA256 e8eaa7c9e3c95bc6777093c2c334f46a2c5132897ce03b65927de96bafacfe78
SHA512 c412cd5b1b5e6f3339d14f535d642620e391d8f0782c696557c902a31896a7630c996973cbe42b5a7497e39afd547a7b11c6e557cf6716ec3a1751aad743e48c

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\brD59.exe

MD5 da6f3bef8abc85bd09f50783059964e3
SHA1 a0f25f60ec1896c4c920ea397f40e6ce29724322
SHA256 e6d9ee8ab0ea2ade6e5a9481d8f0f921427ec6919b1b48c6067570fde270736b
SHA512 4d2e1472b114c98c74900b8305aabbc49ba28edffdc2376206cf02e26593df4e444933b3aa19f0c6cd0ae3ac3133d656433574aaf25a57748758e5dd25edfbec

memory/4768-14-0x00000000749EE000-0x00000000749EF000-memory.dmp

memory/4768-15-0x0000000000990000-0x00000000009C2000-memory.dmp

memory/4768-16-0x00000000057C0000-0x0000000005DD8000-memory.dmp

memory/4768-17-0x0000000005330000-0x000000000543A000-memory.dmp

memory/4768-18-0x0000000005260000-0x0000000005272000-memory.dmp

memory/4768-19-0x00000000052C0000-0x00000000052FC000-memory.dmp

memory/4768-20-0x0000000005440000-0x000000000548C000-memory.dmp

memory/4768-21-0x00000000749EE000-0x00000000749EF000-memory.dmp