Malware Analysis Report

2025-03-15 07:38

Sample ID 241124-vaf32svpap
Target 73db943347d62d7f5e12f0cd1cae0f4a65dab3d08ac080bd3847409162a168a8N.exe
SHA256 73db943347d62d7f5e12f0cd1cae0f4a65dab3d08ac080bd3847409162a168a8
Tags
discovery isfb 7711 gozi
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

73db943347d62d7f5e12f0cd1cae0f4a65dab3d08ac080bd3847409162a168a8

Threat Level: Known bad

The file 73db943347d62d7f5e12f0cd1cae0f4a65dab3d08ac080bd3847409162a168a8N.exe was found to be: Known bad.

Malicious Activity Summary

discovery isfb 7711 gozi

Gozi family

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-24 16:46

Signatures

Gozi family

gozi

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-24 16:46

Reported

2024-11-24 16:49

Platform

win10v2004-20241007-en

Max time kernel

92s

Max time network

93s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\73db943347d62d7f5e12f0cd1cae0f4a65dab3d08ac080bd3847409162a168a8N.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1388 wrote to memory of 316 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1388 wrote to memory of 316 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1388 wrote to memory of 316 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\73db943347d62d7f5e12f0cd1cae0f4a65dab3d08ac080bd3847409162a168a8N.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\73db943347d62d7f5e12f0cd1cae0f4a65dab3d08ac080bd3847409162a168a8N.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 316 -ip 316

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 316 -s 560

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.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 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 82.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-24 16:46

Reported

2024-11-24 16:49

Platform

win7-20240903-en

Max time kernel

15s

Max time network

17s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\73db943347d62d7f5e12f0cd1cae0f4a65dab3d08ac080bd3847409162a168a8N.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\73db943347d62d7f5e12f0cd1cae0f4a65dab3d08ac080bd3847409162a168a8N.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\73db943347d62d7f5e12f0cd1cae0f4a65dab3d08ac080bd3847409162a168a8N.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2172 -s 192

Network

N/A

Files

N/A