Malware Analysis Report

2024-12-07 03:36

Sample ID 241119-kdwb2axnbn
Target 21a520c78e32775b6f657fcad7d3a09767b82b2801f7bf22c849546dc6b5e28aN.exe
SHA256 21a520c78e32775b6f657fcad7d3a09767b82b2801f7bf22c849546dc6b5e28a
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

21a520c78e32775b6f657fcad7d3a09767b82b2801f7bf22c849546dc6b5e28a

Threat Level: Known bad

The file 21a520c78e32775b6f657fcad7d3a09767b82b2801f7bf22c849546dc6b5e28aN.exe 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

2024-11-19 08:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-19 08:29

Reported

2024-11-19 08:31

Platform

win10v2004-20241007-en

Max time kernel

106s

Max time network

117s

Command Line

"C:\Users\Admin\AppData\Local\Temp\21a520c78e32775b6f657fcad7d3a09767b82b2801f7bf22c849546dc6b5e28aN.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

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\21a520c78e32775b6f657fcad7d3a09767b82b2801f7bf22c849546dc6b5e28aN.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\sUE95MX.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup2 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP002.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sVr87UI.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\21a520c78e32775b6f657fcad7d3a09767b82b2801f7bf22c849546dc6b5e28aN.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sUE95MX.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sVr87UI.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\kqr85BG.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4732 wrote to memory of 4512 N/A C:\Users\Admin\AppData\Local\Temp\21a520c78e32775b6f657fcad7d3a09767b82b2801f7bf22c849546dc6b5e28aN.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sUE95MX.exe
PID 4732 wrote to memory of 4512 N/A C:\Users\Admin\AppData\Local\Temp\21a520c78e32775b6f657fcad7d3a09767b82b2801f7bf22c849546dc6b5e28aN.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sUE95MX.exe
PID 4732 wrote to memory of 4512 N/A C:\Users\Admin\AppData\Local\Temp\21a520c78e32775b6f657fcad7d3a09767b82b2801f7bf22c849546dc6b5e28aN.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sUE95MX.exe
PID 4512 wrote to memory of 212 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sUE95MX.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sVr87UI.exe
PID 4512 wrote to memory of 212 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sUE95MX.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sVr87UI.exe
PID 4512 wrote to memory of 212 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sUE95MX.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sVr87UI.exe
PID 212 wrote to memory of 4328 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sVr87UI.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\kqr85BG.exe
PID 212 wrote to memory of 4328 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sVr87UI.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\kqr85BG.exe
PID 212 wrote to memory of 4328 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sVr87UI.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\kqr85BG.exe

Processes

C:\Users\Admin\AppData\Local\Temp\21a520c78e32775b6f657fcad7d3a09767b82b2801f7bf22c849546dc6b5e28aN.exe

"C:\Users\Admin\AppData\Local\Temp\21a520c78e32775b6f657fcad7d3a09767b82b2801f7bf22c849546dc6b5e28aN.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sUE95MX.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sUE95MX.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sVr87UI.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sVr87UI.exe

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\kqr85BG.exe

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\kqr85BG.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.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 95.221.229.192.in-addr.arpa udp
RU 193.233.20.12:4132 tcp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.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 43.229.111.52.in-addr.arpa udp
RU 193.233.20.12:4132 tcp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sUE95MX.exe

MD5 d7815fa16bdd7b1e7f8b5f03bd9c35d2
SHA1 ea91847c7cdec2f3ad68599e6d288fd1bd60506c
SHA256 2392fda629a36bbb0849d242904ec5d27d6fdd91379bdbf1277b8e6189de3c6d
SHA512 ee2bbdab343a31213e608b9fcf03cdb964c88a626cbcb716793706fd736a9fe181029a99759b47cf85e47849689281046983f26da6b12e0627603c244e2fcd34

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sVr87UI.exe

MD5 24c09228658c2215d669712ef8c7dd32
SHA1 b4fbfbca5966bbef891e30e62a032e290d51f0cf
SHA256 f759a1b74e4ba5e501c5a8a1fbc794a5f3d8884891b112d3ec1e0402405836d5
SHA512 0bd8251212bfe7fb5e710d377de508316588a7bcc70f08d279262d2fe78e578a941a7af57dd1f9e3d99a6b3b1aa570ea89f0059034573fe6e18c9282e5953bdf

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\kqr85BG.exe

MD5 da6f3bef8abc85bd09f50783059964e3
SHA1 a0f25f60ec1896c4c920ea397f40e6ce29724322
SHA256 e6d9ee8ab0ea2ade6e5a9481d8f0f921427ec6919b1b48c6067570fde270736b
SHA512 4d2e1472b114c98c74900b8305aabbc49ba28edffdc2376206cf02e26593df4e444933b3aa19f0c6cd0ae3ac3133d656433574aaf25a57748758e5dd25edfbec

memory/4328-21-0x0000000000860000-0x0000000000892000-memory.dmp

memory/4328-22-0x00000000057C0000-0x0000000005DD8000-memory.dmp

memory/4328-23-0x0000000005340000-0x000000000544A000-memory.dmp

memory/4328-24-0x0000000005280000-0x0000000005292000-memory.dmp

memory/4328-25-0x00000000052E0000-0x000000000531C000-memory.dmp

memory/4328-26-0x0000000005450000-0x000000000549C000-memory.dmp