Malware Analysis Report

2025-08-06 04:28

Sample ID 220321-js9mjaadhj
Target readme.exe
SHA256 7cbb379e78c7c547cfd1957ccaa0be899cb97df3d001605c9bd51cd70d975886
Tags
gozi_ifsb 7625 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

7cbb379e78c7c547cfd1957ccaa0be899cb97df3d001605c9bd51cd70d975886

Threat Level: Known bad

The file readme.exe was found to be: Known bad.

Malicious Activity Summary

gozi_ifsb 7625 banker trojan

Gozi, Gozi IFSB

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2022-03-21 07:57

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-03-21 07:57

Reported

2022-03-21 07:59

Platform

win7-20220311-en

Max time kernel

4294184s

Max time network

122s

Command Line

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

Signatures

Gozi, Gozi IFSB

banker trojan gozi_ifsb

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 224

Network

N/A

Files

memory/1808-54-0x0000000075081000-0x0000000075083000-memory.dmp

memory/1808-55-0x0000000000760000-0x00000000007D6000-memory.dmp

memory/1808-57-0x0000000000170000-0x000000000017E000-memory.dmp

memory/1808-56-0x0000000000170000-0x000000000017E000-memory.dmp

memory/1808-59-0x0000000000170000-0x000000000017E000-memory.dmp

memory/1808-60-0x00000000000D0000-0x00000000000DC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-03-21 07:57

Reported

2022-03-21 07:59

Platform

win10v2004-en-20220113

Max time kernel

131s

Max time network

135s

Command Line

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

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1032 wrote to memory of 2108 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1032 wrote to memory of 2108 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1032 wrote to memory of 2108 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
NL 8.248.5.254:80 tcp
NL 8.248.5.254:80 tcp

Files

N/A