Malware Analysis Report

2024-12-07 03:37

Sample ID 241111-mh6pnsycma
Target 4a1dc91bf7603cc52af07b1ea7f76c800221e433670bd9c91f47cd0c2f984c4d
SHA256 4a1dc91bf7603cc52af07b1ea7f76c800221e433670bd9c91f47cd0c2f984c4d
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

4a1dc91bf7603cc52af07b1ea7f76c800221e433670bd9c91f47cd0c2f984c4d

Threat Level: Known bad

The file 4a1dc91bf7603cc52af07b1ea7f76c800221e433670bd9c91f47cd0c2f984c4d 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

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 10:28

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-11 10:28

Reported

2024-11-11 10:31

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4a1dc91bf7603cc52af07b1ea7f76c800221e433670bd9c91f47cd0c2f984c4d.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\nmt71.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bRY30.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\4a1dc91bf7603cc52af07b1ea7f76c800221e433670bd9c91f47cd0c2f984c4d.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\nmt71.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\4a1dc91bf7603cc52af07b1ea7f76c800221e433670bd9c91f47cd0c2f984c4d.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nmt71.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bRY30.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4a1dc91bf7603cc52af07b1ea7f76c800221e433670bd9c91f47cd0c2f984c4d.exe

"C:\Users\Admin\AppData\Local\Temp\4a1dc91bf7603cc52af07b1ea7f76c800221e433670bd9c91f47cd0c2f984c4d.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nmt71.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nmt71.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bRY30.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bRY30.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
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 69.31.126.40.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 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.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 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
RU 193.233.20.12:4132 tcp
US 8.8.8.8:53 30.243.111.52.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\nmt71.exe

MD5 7a8ae1609e183a99cb428a3cbdd0d633
SHA1 1680515f199088688cb86015891e23d81b898e4e
SHA256 b0a8d521bf173a2a26311e82b4541126b9f451a1547ebce8d8de621e867df154
SHA512 73988792b5f37ba6e5f08c27e862d88764dd5b7c9965c61a19084608a1c8565c498c291897d2f8ca956742b6f0684ff31a4afa153c92feb7151430f07559589e

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\bRY30.exe

MD5 da6f3bef8abc85bd09f50783059964e3
SHA1 a0f25f60ec1896c4c920ea397f40e6ce29724322
SHA256 e6d9ee8ab0ea2ade6e5a9481d8f0f921427ec6919b1b48c6067570fde270736b
SHA512 4d2e1472b114c98c74900b8305aabbc49ba28edffdc2376206cf02e26593df4e444933b3aa19f0c6cd0ae3ac3133d656433574aaf25a57748758e5dd25edfbec

memory/184-14-0x00000000740FE000-0x00000000740FF000-memory.dmp

memory/184-15-0x0000000000080000-0x00000000000B2000-memory.dmp

memory/184-16-0x0000000005000000-0x0000000005618000-memory.dmp

memory/184-17-0x0000000004B60000-0x0000000004C6A000-memory.dmp

memory/184-18-0x0000000004A90000-0x0000000004AA2000-memory.dmp

memory/184-19-0x0000000004B00000-0x0000000004B3C000-memory.dmp

memory/184-20-0x0000000004C70000-0x0000000004CBC000-memory.dmp

memory/184-21-0x00000000740FE000-0x00000000740FF000-memory.dmp