Malware Analysis Report

2024-11-16 13:22

Sample ID 241020-nqg7qawbrf
Target 949ab1a7c021aec77e7bd5f2349f9a38ce8019c8730c512b75030aa72c2d8963N
SHA256 949ab1a7c021aec77e7bd5f2349f9a38ce8019c8730c512b75030aa72c2d8963
Tags
renamer discovery worm
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

949ab1a7c021aec77e7bd5f2349f9a38ce8019c8730c512b75030aa72c2d8963

Threat Level: Known bad

The file 949ab1a7c021aec77e7bd5f2349f9a38ce8019c8730c512b75030aa72c2d8963N was found to be: Known bad.

Malicious Activity Summary

renamer discovery worm

Detects Renamer worm.

Renamer family

Renamer, Grenam

Unsigned PE

Program crash

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-20 11:35

Signatures

Detects Renamer worm.

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

Renamer family

renamer

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-20 11:35

Reported

2024-10-20 11:38

Platform

win7-20240903-en

Max time kernel

77s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\949ab1a7c021aec77e7bd5f2349f9a38ce8019c8730c512b75030aa72c2d8963N.exe"

Signatures

Detects Renamer worm.

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

Renamer, Grenam

worm renamer

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\949ab1a7c021aec77e7bd5f2349f9a38ce8019c8730c512b75030aa72c2d8963N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\949ab1a7c021aec77e7bd5f2349f9a38ce8019c8730c512b75030aa72c2d8963N.exe

"C:\Users\Admin\AppData\Local\Temp\949ab1a7c021aec77e7bd5f2349f9a38ce8019c8730c512b75030aa72c2d8963N.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2364 -s 176

Network

N/A

Files

memory/2364-0-0x0000000000400000-0x00000000004DB000-memory.dmp

memory/2364-1-0x0000000000400000-0x00000000004DB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-20 11:35

Reported

2024-10-20 11:38

Platform

win10v2004-20241007-en

Max time kernel

102s

Max time network

106s

Command Line

"C:\Users\Admin\AppData\Local\Temp\949ab1a7c021aec77e7bd5f2349f9a38ce8019c8730c512b75030aa72c2d8963N.exe"

Signatures

Detects Renamer worm.

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

Renamer, Grenam

worm renamer

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\949ab1a7c021aec77e7bd5f2349f9a38ce8019c8730c512b75030aa72c2d8963N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\949ab1a7c021aec77e7bd5f2349f9a38ce8019c8730c512b75030aa72c2d8963N.exe

"C:\Users\Admin\AppData\Local\Temp\949ab1a7c021aec77e7bd5f2349f9a38ce8019c8730c512b75030aa72c2d8963N.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2924 -ip 2924

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2924 -s 468

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/2924-0-0x0000000000400000-0x00000000004DB000-memory.dmp

memory/2924-1-0x0000000000400000-0x00000000004DB000-memory.dmp