Malware Analysis Report

2025-08-11 01:45

Sample ID 230308-mmerrafe99
Target 1296-56-0x00000000003F0000-0x00000000003FD000-memory.dmp
SHA256 73db943347d62d7f5e12f0cd1cae0f4a65dab3d08ac080bd3847409162a168a8
Tags
isfb 7711 gozi
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

73db943347d62d7f5e12f0cd1cae0f4a65dab3d08ac080bd3847409162a168a8

Threat Level: Known bad

The file 1296-56-0x00000000003F0000-0x00000000003FD000-memory.dmp was found to be: Known bad.

Malicious Activity Summary

isfb 7711 gozi

Gozi family

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-03-08 10:34

Signatures

Gozi family

gozi

Analysis: behavioral1

Detonation Overview

Submitted

2023-03-08 10:34

Reported

2023-03-08 10:37

Platform

win7-20230220-en

Max time kernel

30s

Max time network

33s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1296-56-0x00000000003F0000-0x00000000003FD000-memory.dll,#1

Signatures

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1296-56-0x00000000003F0000-0x00000000003FD000-memory.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1296-56-0x00000000003F0000-0x00000000003FD000-memory.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 196

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-03-08 10:34

Reported

2023-03-08 10:37

Platform

win10v2004-20230220-en

Max time kernel

120s

Max time network

141s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1296-56-0x00000000003F0000-0x00000000003FD000-memory.dll,#1

Signatures

Program crash

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2368 wrote to memory of 1416 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2368 wrote to memory of 1416 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2368 wrote to memory of 1416 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\1296-56-0x00000000003F0000-0x00000000003FD000-memory.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1296-56-0x00000000003F0000-0x00000000003FD000-memory.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1416 -ip 1416

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1416 -s 560

Network

Country Destination Domain Proto
US 209.197.3.8:80 tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 210.81.184.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 76.38.195.152.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 123.108.74.40.in-addr.arpa udp
US 104.208.16.88:443 tcp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
NL 173.223.113.164:443 tcp
US 8.8.8.8:53 62.13.109.52.in-addr.arpa udp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 177.238.32.23.in-addr.arpa udp

Files

N/A