Malware Analysis Report

2024-12-07 20:03

Sample ID 241116-vwxypazhkp
Target de87ce756e50ab7af5074e91a856029d87656fdf7fe095af5661038da9de8c21
SHA256 de87ce756e50ab7af5074e91a856029d87656fdf7fe095af5661038da9de8c21
Tags
discovery grandoreiro
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

de87ce756e50ab7af5074e91a856029d87656fdf7fe095af5661038da9de8c21

Threat Level: Known bad

The file de87ce756e50ab7af5074e91a856029d87656fdf7fe095af5661038da9de8c21 was found to be: Known bad.

Malicious Activity Summary

discovery grandoreiro

Detects Grandoreiro payload

Grandoreiro family

Unsigned PE

Program crash

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-16 17:21

Signatures

Detects Grandoreiro payload

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

Grandoreiro family

grandoreiro

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-16 17:20

Reported

2024-11-16 17:23

Platform

win10v2004-20241007-en

Max time kernel

147s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\de87ce756e50ab7af5074e91a856029d87656fdf7fe095af5661038da9de8c21.exe"

Signatures

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\de87ce756e50ab7af5074e91a856029d87656fdf7fe095af5661038da9de8c21.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\de87ce756e50ab7af5074e91a856029d87656fdf7fe095af5661038da9de8c21.exe

"C:\Users\Admin\AppData\Local\Temp\de87ce756e50ab7af5074e91a856029d87656fdf7fe095af5661038da9de8c21.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1896 -ip 1896

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1896 -s 684

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 20.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 11.173.189.20.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-16 17:20

Reported

2024-11-16 17:23

Platform

win7-20241010-en

Max time kernel

119s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\de87ce756e50ab7af5074e91a856029d87656fdf7fe095af5661038da9de8c21.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\de87ce756e50ab7af5074e91a856029d87656fdf7fe095af5661038da9de8c21.exe

"C:\Users\Admin\AppData\Local\Temp\de87ce756e50ab7af5074e91a856029d87656fdf7fe095af5661038da9de8c21.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 256

Network

N/A

Files

N/A