Malware Analysis Report

2025-08-11 01:44

Sample ID 230308-l984faeg8x
Target 1380-135-0x00000000021E0000-0x00000000021ED000-memory.dmp
SHA256 d05d927c941002b7d7703b44eb51325283ce0a6ec0e3dddce86b6f4258ccc21f
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

d05d927c941002b7d7703b44eb51325283ce0a6ec0e3dddce86b6f4258ccc21f

Threat Level: Known bad

The file 1380-135-0x00000000021E0000-0x00000000021ED000-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 10:15

Signatures

Gozi family

gozi

Analysis: behavioral1

Detonation Overview

Submitted

2023-03-08 10:15

Reported

2023-03-08 10:17

Platform

win7-20230220-en

Max time kernel

27s

Max time network

30s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1380-135-0x00000000021E0000-0x00000000021ED000-memory.dll,#1

Signatures

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1380-135-0x00000000021E0000-0x00000000021ED000-memory.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1380-135-0x00000000021E0000-0x00000000021ED000-memory.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 936 -s 196

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-03-08 10:15

Reported

2023-03-08 10:17

Platform

win10v2004-20230220-en

Max time kernel

118s

Max time network

145s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1380-135-0x00000000021E0000-0x00000000021ED000-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 3980 wrote to memory of 1264 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3980 wrote to memory of 1264 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3980 wrote to memory of 1264 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\1380-135-0x00000000021E0000-0x00000000021ED000-memory.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1380-135-0x00000000021E0000-0x00000000021ED000-memory.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1264 -ip 1264

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1264 -s 560

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
US 209.197.3.8:80 tcp
US 93.184.220.29:80 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 210.81.184.52.in-addr.arpa udp
US 8.8.8.8:53 76.38.195.152.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 234.238.32.23.in-addr.arpa udp
NL 52.178.17.3:443 tcp
US 8.8.8.8:53 86.8.109.52.in-addr.arpa udp
US 209.197.3.8:80 tcp
NL 173.223.113.164:443 tcp
US 8.8.8.8:53 18.108.31.20.in-addr.arpa udp
US 8.8.8.8:53 11.175.53.84.in-addr.arpa udp

Files

N/A