Malware Analysis Report

2025-08-11 01:44

Sample ID 230308-kb1tqsed7x
Target 2824-135-0x00000000021A0000-0x00000000021AD000-memory.dmp
SHA256 839c6f5fd1d023559d9c57cdec8a2967081256500043646c9d5140e31047b22b
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

839c6f5fd1d023559d9c57cdec8a2967081256500043646c9d5140e31047b22b

Threat Level: Known bad

The file 2824-135-0x00000000021A0000-0x00000000021AD000-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 08:26

Signatures

Gozi family

gozi

Analysis: behavioral1

Detonation Overview

Submitted

2023-03-08 08:26

Reported

2023-03-08 08:28

Platform

win7-20230220-en

Max time kernel

31s

Max time network

33s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2824-135-0x00000000021A0000-0x00000000021AD000-memory.dll,#1

Signatures

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2824-135-0x00000000021A0000-0x00000000021AD000-memory.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2824-135-0x00000000021A0000-0x00000000021AD000-memory.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1480 -s 196

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-03-08 08:26

Reported

2023-03-08 08:28

Platform

win10v2004-20230220-en

Max time kernel

105s

Max time network

129s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2824-135-0x00000000021A0000-0x00000000021AD000-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 1924 wrote to memory of 1180 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1924 wrote to memory of 1180 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1924 wrote to memory of 1180 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\2824-135-0x00000000021A0000-0x00000000021AD000-memory.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2824-135-0x00000000021A0000-0x00000000021AD000-memory.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1180 -ip 1180

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1180 -s 560

Network

Country Destination Domain Proto
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 240.232.18.117.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 151.122.125.40.in-addr.arpa udp
US 8.8.8.8:53 177.238.32.23.in-addr.arpa udp
US 8.8.8.8:53 123.108.74.40.in-addr.arpa udp
US 8.8.8.8:53 58.104.205.20.in-addr.arpa udp
US 8.8.8.8:53 86.8.109.52.in-addr.arpa udp
US 93.184.220.29:80 tcp
US 93.184.220.29:80 tcp
US 209.197.3.8:80 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 131.253.33.203:80 tcp

Files

N/A