Malware Analysis Report

2025-08-11 01:45

Sample ID 230308-megldafd28
Target 3100-135-0x00000000021E0000-0x00000000021ED000-memory.dmp
SHA256 3ebc9758d14cac0bd35277ca275c078eba9222784270b19f10da269295ab192c
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

3ebc9758d14cac0bd35277ca275c078eba9222784270b19f10da269295ab192c

Threat Level: Known bad

The file 3100-135-0x00000000021E0000-0x00000000021ED000-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 10:22

Signatures

Gozi family

gozi

Analysis: behavioral1

Detonation Overview

Submitted

2023-03-08 10:22

Reported

2023-03-08 10:25

Platform

win7-20230220-en

Max time kernel

31s

Max time network

33s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3100-135-0x00000000021E0000-0x00000000021ED000-memory.dll,#1

Signatures

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3100-135-0x00000000021E0000-0x00000000021ED000-memory.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3100-135-0x00000000021E0000-0x00000000021ED000-memory.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1724 -s 196

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-03-08 10:22

Reported

2023-03-08 10:25

Platform

win10v2004-20230220-en

Max time kernel

78s

Max time network

128s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3100-135-0x00000000021E0000-0x00000000021ED000-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 1712 wrote to memory of 1348 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1712 wrote to memory of 1348 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1712 wrote to memory of 1348 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\3100-135-0x00000000021E0000-0x00000000021ED000-memory.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3100-135-0x00000000021E0000-0x00000000021ED000-memory.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1348 -ip 1348

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1348 -s 560

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 210.81.184.52.in-addr.arpa udp
US 8.8.8.8:53 234.238.32.23.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 151.122.125.40.in-addr.arpa udp
US 52.168.112.66:443 tcp
US 8.8.8.8:53 45.8.109.52.in-addr.arpa udp
US 209.197.3.8:80 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp

Files

N/A