Malware Analysis Report

2025-01-22 18:56

Sample ID 240306-p5fswabb9s
Target b77316676d9f3237a0c9877f170bd7bc
SHA256 d1b9f842f386bc75e77f81d72687ecc2f4041ddd097f76d8c096d11822f07667
Tags
gozi 2500 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

d1b9f842f386bc75e77f81d72687ecc2f4041ddd097f76d8c096d11822f07667

Threat Level: Known bad

The file b77316676d9f3237a0c9877f170bd7bc was found to be: Known bad.

Malicious Activity Summary

gozi 2500 banker isfb trojan

Gozi

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-03-06 12:54

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-06 12:54

Reported

2024-03-06 12:57

Platform

win7-20240221-en

Max time kernel

142s

Max time network

124s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b77316676d9f3237a0c9877f170bd7bc.dll,#1

Signatures

Gozi

banker trojan gozi

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2164 wrote to memory of 1864 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2164 wrote to memory of 1864 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2164 wrote to memory of 1864 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2164 wrote to memory of 1864 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2164 wrote to memory of 1864 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2164 wrote to memory of 1864 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2164 wrote to memory of 1864 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\b77316676d9f3237a0c9877f170bd7bc.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b77316676d9f3237a0c9877f170bd7bc.dll,#1

Network

N/A

Files

memory/1864-0-0x0000000074580000-0x00000000745D1000-memory.dmp

memory/1864-1-0x0000000074580000-0x00000000745D1000-memory.dmp

memory/1864-2-0x0000000000170000-0x0000000000171000-memory.dmp

memory/1864-3-0x0000000074580000-0x00000000745D1000-memory.dmp

memory/1864-4-0x0000000074580000-0x00000000745D1000-memory.dmp

memory/1864-6-0x0000000074580000-0x00000000745D1000-memory.dmp

memory/1864-7-0x00000000001A0000-0x00000000001AD000-memory.dmp

memory/1864-10-0x0000000074580000-0x00000000745D1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-06 12:54

Reported

2024-03-06 12:57

Platform

win10v2004-20240226-en

Max time kernel

144s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b77316676d9f3237a0c9877f170bd7bc.dll,#1

Signatures

Gozi

banker trojan gozi

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 892 wrote to memory of 3336 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 892 wrote to memory of 3336 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 892 wrote to memory of 3336 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\b77316676d9f3237a0c9877f170bd7bc.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b77316676d9f3237a0c9877f170bd7bc.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 gtr.antoinfer.com udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 90.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 app.bighomegl.at udp
US 8.8.8.8:53 187.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 gtr.antoinfer.com udp
US 8.8.8.8:53 33.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 app.bighomegl.at udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.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 gtr.antoinfer.com udp
US 8.8.8.8:53 app.bighomegl.at udp

Files

memory/3336-0-0x0000000075340000-0x0000000075391000-memory.dmp

memory/3336-1-0x0000000075340000-0x0000000075391000-memory.dmp

memory/3336-2-0x0000000002530000-0x0000000002531000-memory.dmp

memory/3336-3-0x0000000075340000-0x0000000075391000-memory.dmp

memory/3336-4-0x0000000002610000-0x000000000261D000-memory.dmp

memory/3336-7-0x0000000075340000-0x0000000075391000-memory.dmp