Malware Analysis Report

2024-12-07 20:02

Sample ID 241120-n7mtjawdnd
Target 4e47cc8c73d962cf2fbf4894c897a95cd7b5f32c792984eeb92513eb3d12b9ba.exe
SHA256 4e47cc8c73d962cf2fbf4894c897a95cd7b5f32c792984eeb92513eb3d12b9ba
Tags
grandoreiro discovery
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

4e47cc8c73d962cf2fbf4894c897a95cd7b5f32c792984eeb92513eb3d12b9ba

Threat Level: Known bad

The file 4e47cc8c73d962cf2fbf4894c897a95cd7b5f32c792984eeb92513eb3d12b9ba.exe was found to be: Known bad.

Malicious Activity Summary

grandoreiro discovery

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

2024-11-20 12:02

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: behavioral1

Detonation Overview

Submitted

2024-11-20 12:02

Reported

2024-11-20 12:05

Platform

win7-20240903-en

Max time kernel

117s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4e47cc8c73d962cf2fbf4894c897a95cd7b5f32c792984eeb92513eb3d12b9ba.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\4e47cc8c73d962cf2fbf4894c897a95cd7b5f32c792984eeb92513eb3d12b9ba.exe

"C:\Users\Admin\AppData\Local\Temp\4e47cc8c73d962cf2fbf4894c897a95cd7b5f32c792984eeb92513eb3d12b9ba.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 256

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-20 12:02

Reported

2024-11-20 12:05

Platform

win10v2004-20241007-en

Max time kernel

91s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4e47cc8c73d962cf2fbf4894c897a95cd7b5f32c792984eeb92513eb3d12b9ba.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\4e47cc8c73d962cf2fbf4894c897a95cd7b5f32c792984eeb92513eb3d12b9ba.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4e47cc8c73d962cf2fbf4894c897a95cd7b5f32c792984eeb92513eb3d12b9ba.exe

"C:\Users\Admin\AppData\Local\Temp\4e47cc8c73d962cf2fbf4894c897a95cd7b5f32c792984eeb92513eb3d12b9ba.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3272 -ip 3272

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 688

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 40.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 50.139.73.23.in-addr.arpa udp

Files

N/A