Malware Analysis Report

2025-01-22 18:51

Sample ID 240311-csw8waad7x
Target bf96986812fe58ad12783bbf087ab289
SHA256 5e94f313ad7f178850b93590f65926f82fa7a57b10d9a519bdffa0ff0a001830
Tags
gozi 3500 banker isfb 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

5e94f313ad7f178850b93590f65926f82fa7a57b10d9a519bdffa0ff0a001830

Threat Level: Known bad

The file bf96986812fe58ad12783bbf087ab289 was found to be: Known bad.

Malicious Activity Summary

gozi 3500 banker isfb trojan

Gozi

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-03-11 02:20

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-11 02:20

Reported

2024-03-11 02:23

Platform

win7-20240221-en

Max time kernel

142s

Max time network

121s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\bf96986812fe58ad12783bbf087ab289.dll,#1

Signatures

Gozi

banker trojan gozi

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2224 wrote to memory of 1712 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2224 wrote to memory of 1712 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2224 wrote to memory of 1712 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2224 wrote to memory of 1712 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2224 wrote to memory of 1712 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2224 wrote to memory of 1712 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2224 wrote to memory of 1712 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\bf96986812fe58ad12783bbf087ab289.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\bf96986812fe58ad12783bbf087ab289.dll,#1

Network

N/A

Files

memory/1712-0-0x0000000074A10000-0x0000000074B1D000-memory.dmp

memory/1712-1-0x0000000074A10000-0x0000000074B1D000-memory.dmp

memory/1712-2-0x0000000000240000-0x000000000024D000-memory.dmp

memory/1712-5-0x0000000074A10000-0x0000000074B1D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-11 02:20

Reported

2024-03-11 02:23

Platform

win10v2004-20240226-en

Max time kernel

143s

Max time network

135s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\bf96986812fe58ad12783bbf087ab289.dll,#1

Signatures

Gozi

banker trojan gozi

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1192 wrote to memory of 3684 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1192 wrote to memory of 3684 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1192 wrote to memory of 3684 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\bf96986812fe58ad12783bbf087ab289.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\bf96986812fe58ad12783bbf087ab289.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 gtr.antoinfer.com udp
US 8.8.8.8:53 f1.bablefiler.at udp
US 8.8.8.8:53 gtr.antoinfer.com udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 f1.bablefiler.at udp
US 8.8.8.8:53 gtr.antoinfer.com udp

Files

memory/3684-0-0x0000000075260000-0x000000007536D000-memory.dmp

memory/3684-1-0x0000000075260000-0x000000007536D000-memory.dmp

memory/3684-2-0x0000000000970000-0x0000000000971000-memory.dmp

memory/3684-3-0x0000000000CF0000-0x0000000000CFD000-memory.dmp

memory/3684-6-0x0000000075260000-0x000000007536D000-memory.dmp