Malware Analysis Report

2025-08-05 13:07

Sample ID 220323-lswf1sbhf5
Target readme
SHA256 77457f0b7da19036041ca3a0071e141909d889eb7e2d28d6ad0df73bc3c81636
Tags
gozi_ifsb 7627 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

77457f0b7da19036041ca3a0071e141909d889eb7e2d28d6ad0df73bc3c81636

Threat Level: Known bad

The file readme was found to be: Known bad.

Malicious Activity Summary

gozi_ifsb 7627 banker trojan

Gozi, Gozi IFSB

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2022-03-23 09:48

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-03-23 09:48

Reported

2022-03-23 09:50

Platform

win7-20220311-en

Max time kernel

4294182s

Max time network

124s

Command Line

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

Signatures

Gozi, Gozi IFSB

banker trojan gozi_ifsb

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1960 wrote to memory of 1968 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1960 wrote to memory of 1968 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1960 wrote to memory of 1968 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1960 wrote to memory of 1968 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1960 wrote to memory of 1968 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1960 wrote to memory of 1968 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1960 wrote to memory of 1968 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\readme.dll,#1

C:\Windows\SysWOW64\rundll32.exe

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

Network

N/A

Files

memory/1968-54-0x0000000000000000-mapping.dmp

memory/1968-55-0x0000000076BC1000-0x0000000076BC3000-memory.dmp

memory/1968-56-0x00000000001B0000-0x000000000022A000-memory.dmp

memory/1968-58-0x0000000000260000-0x000000000026E000-memory.dmp

memory/1968-57-0x0000000000260000-0x000000000026E000-memory.dmp

memory/1968-60-0x0000000000260000-0x000000000026E000-memory.dmp

memory/1968-59-0x0000000000260000-0x000000000026E000-memory.dmp

memory/1968-61-0x0000000000240000-0x000000000024C000-memory.dmp

memory/1968-62-0x0000000000260000-0x000000000026E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-03-23 09:48

Reported

2022-03-23 09:50

Platform

win10v2004-20220310-en

Max time kernel

118s

Max time network

121s

Command Line

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

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1364 wrote to memory of 4756 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1364 wrote to memory of 4756 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1364 wrote to memory of 4756 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\readme.dll,#1

C:\Windows\SysWOW64\rundll32.exe

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

Network

Country Destination Domain Proto
US 52.109.12.18:443 tcp
US 93.184.220.29:80 tcp
US 8.8.8.8:53 licensing.mp.microsoft.com udp
US 20.223.25.224:443 licensing.mp.microsoft.com tcp
US 8.8.8.8:53 storesdk.dsx.mp.microsoft.com udp
NL 104.80.225.205:443 storesdk.dsx.mp.microsoft.com tcp
US 20.223.25.224:443 licensing.mp.microsoft.com tcp
US 20.223.25.224:443 licensing.mp.microsoft.com tcp
US 20.223.25.224:443 licensing.mp.microsoft.com tcp
US 104.16.147.212:443 tcp
NL 52.178.17.2:443 tcp
NL 104.80.225.205:443 storesdk.dsx.mp.microsoft.com tcp

Files

memory/4756-134-0x0000000000000000-mapping.dmp

memory/4756-135-0x00000000009C0000-0x0000000000A3A000-memory.dmp