Malware Analysis Report

2025-08-05 21:40

Sample ID 230321-ryxh6abb85
Target 646ab5eb6224824f04f4b78b80f47e2b7251c8ad9af55d806f7a016403f2fa45.zip
SHA256 057e29248321830650040ed04dadc60b68f38b2ae5cd2ebfb53525c6a0e1f46b
Tags
isfb 5050 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

057e29248321830650040ed04dadc60b68f38b2ae5cd2ebfb53525c6a0e1f46b

Threat Level: Known bad

The file 646ab5eb6224824f04f4b78b80f47e2b7251c8ad9af55d806f7a016403f2fa45.zip was found to be: Known bad.

Malicious Activity Summary

isfb 5050 gozi

Gozi family

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-03-21 14:36

Signatures

Gozi family

gozi

Analysis: behavioral1

Detonation Overview

Submitted

2023-03-21 14:36

Reported

2023-03-21 14:39

Platform

win7-20230220-en

Max time kernel

25s

Max time network

31s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\646ab5eb6224824f04f4b78b80f47e2b7251c8ad9af55d806f7a016403f2fa45.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1740 wrote to memory of 1360 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1740 wrote to memory of 1360 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1740 wrote to memory of 1360 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1740 wrote to memory of 1360 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1740 wrote to memory of 1360 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1740 wrote to memory of 1360 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1740 wrote to memory of 1360 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\646ab5eb6224824f04f4b78b80f47e2b7251c8ad9af55d806f7a016403f2fa45.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\646ab5eb6224824f04f4b78b80f47e2b7251c8ad9af55d806f7a016403f2fa45.dll,#1

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-03-21 14:36

Reported

2023-03-21 14:39

Platform

win10v2004-20230220-en

Max time kernel

135s

Max time network

145s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\646ab5eb6224824f04f4b78b80f47e2b7251c8ad9af55d806f7a016403f2fa45.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4116 wrote to memory of 3524 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4116 wrote to memory of 3524 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4116 wrote to memory of 3524 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\646ab5eb6224824f04f4b78b80f47e2b7251c8ad9af55d806f7a016403f2fa45.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\646ab5eb6224824f04f4b78b80f47e2b7251c8ad9af55d806f7a016403f2fa45.dll,#1

Network

Country Destination Domain Proto
IE 40.126.31.67:443 tcp
US 152.195.38.76:80 tcp
US 8.248.3.254:80 tcp
US 8.8.8.8:53 160.145.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 52.152.110.14:443 tcp
NL 8.238.24.126:80 tcp
US 20.42.73.27:443 tcp
US 52.152.110.14:443 tcp
NL 8.238.179.126:80 tcp
US 8.248.3.254:80 tcp
US 8.248.3.254:80 tcp
US 52.152.110.14:443 tcp
NL 173.223.113.164:443 tcp
US 8.8.8.8:53 63.13.109.52.in-addr.arpa udp
US 67.24.35.254:80 tcp
US 52.152.110.14:443 tcp
US 67.26.109.254:80 tcp
US 52.152.110.14:443 tcp
US 8.8.8.8:53 216.74.101.95.in-addr.arpa udp
US 8.8.8.8:53 202.74.101.95.in-addr.arpa udp
US 52.152.110.14:443 tcp

Files

N/A