Malware Analysis Report

2025-03-15 07:45

Sample ID 240209-ck71eaec8y
Target 936-1-0x0000000075160000-0x000000007526D000-memory.dmp
SHA256 2709825756b2c77422ba1194254c829aafe5f2a5fedc4647e9d5ff37466dc341
Tags
isfb 3500 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

2709825756b2c77422ba1194254c829aafe5f2a5fedc4647e9d5ff37466dc341

Threat Level: Known bad

The file 936-1-0x0000000075160000-0x000000007526D000-memory.dmp was found to be: Known bad.

Malicious Activity Summary

isfb 3500 gozi

Gozi family

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-02-09 02:09

Signatures

Gozi family

gozi

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-09 02:09

Reported

2024-02-09 02:11

Platform

win7-20231215-en

Max time kernel

119s

Max time network

123s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\936-1-0x0000000075160000-0x000000007526D000-memory.dll,#1

Signatures

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\936-1-0x0000000075160000-0x000000007526D000-memory.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\936-1-0x0000000075160000-0x000000007526D000-memory.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1740 -s 196

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-09 02:09

Reported

2024-02-09 02:11

Platform

win10v2004-20231222-en

Max time kernel

90s

Max time network

149s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\936-1-0x0000000075160000-0x000000007526D000-memory.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3712 wrote to memory of 3056 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3712 wrote to memory of 3056 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3712 wrote to memory of 3056 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\936-1-0x0000000075160000-0x000000007526D000-memory.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\936-1-0x0000000075160000-0x000000007526D000-memory.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3056 -ip 3056

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3056 -s 560

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

N/A