Malware Analysis Report

2025-08-05 21:40

Sample ID 230321-m7jw7shh74
Target stage_2gozi.dll
SHA256 69d646441885a01d2203c17d5b38c1772d0f8cb76d0a43d33d143e7a0b13f6f8
Tags
isfb 5050 gozi banker trojan
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

69d646441885a01d2203c17d5b38c1772d0f8cb76d0a43d33d143e7a0b13f6f8

Threat Level: Known bad

The file stage_2gozi.dll was found to be: Known bad.

Malicious Activity Summary

isfb 5050 gozi banker trojan

Gozi

Gozi family

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-03-21 11:06

Signatures

Gozi family

gozi

Analysis: behavioral1

Detonation Overview

Submitted

2023-03-21 11:06

Reported

2023-03-21 11:08

Platform

win7-20230220-en

Max time kernel

31s

Max time network

33s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\stage_2gozi.dll

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1712 wrote to memory of 2000 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1712 wrote to memory of 2000 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1712 wrote to memory of 2000 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1712 wrote to memory of 2000 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1712 wrote to memory of 2000 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1712 wrote to memory of 2000 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1712 wrote to memory of 2000 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\stage_2gozi.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\stage_2gozi.dll

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-03-21 11:06

Reported

2023-03-21 11:08

Platform

win10v2004-20230220-en

Max time kernel

149s

Max time network

151s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\stage_2gozi.dll

Signatures

Gozi

banker trojan gozi

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1124 wrote to memory of 1816 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1124 wrote to memory of 1816 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1124 wrote to memory of 1816 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\stage_2gozi.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\stage_2gozi.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 199.176.139.52.in-addr.arpa udp
US 8.8.8.8:53 216.74.101.95.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
IE 20.54.89.15:443 tcp
US 20.189.173.4:443 tcp
US 8.8.8.8:53 97.97.242.52.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 97.97.242.52.in-addr.arpa udp
US 117.18.237.29:80 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 226.101.242.52.in-addr.arpa udp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp
GB 52.123.242.51:80 config.edge.skype.com tcp
US 8.8.8.8:53 51.242.123.52.in-addr.arpa udp
RU 91.215.85.201:80 91.215.85.201 tcp
US 8.8.8.8:53 201.85.215.91.in-addr.arpa udp

Files

memory/1816-133-0x0000000000E20000-0x0000000000E2D000-memory.dmp