Malware Analysis Report

2025-01-22 17:07

Sample ID 241006-vjvb2avdqm
Target 18f05d6546ef7e942f36ce47bd3603c8_JaffaCakes118
SHA256 ac6fbfbf539638215c1d7f6887f2754d44e96c3d55eb1e2314af4c4378e9d647
Tags
gozi banker discovery trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

ac6fbfbf539638215c1d7f6887f2754d44e96c3d55eb1e2314af4c4378e9d647

Threat Level: Known bad

The file 18f05d6546ef7e942f36ce47bd3603c8_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

gozi banker discovery trojan

Gozi

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-06 17:01

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-06 17:01

Reported

2024-10-06 17:04

Platform

win7-20240704-en

Max time kernel

117s

Max time network

117s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\18f05d6546ef7e942f36ce47bd3603c8_JaffaCakes118.dll,#1

Signatures

Gozi

banker trojan gozi

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2604 wrote to memory of 3028 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2604 wrote to memory of 3028 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2604 wrote to memory of 3028 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2604 wrote to memory of 3028 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2604 wrote to memory of 3028 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2604 wrote to memory of 3028 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2604 wrote to memory of 3028 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\18f05d6546ef7e942f36ce47bd3603c8_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\18f05d6546ef7e942f36ce47bd3603c8_JaffaCakes118.dll,#1

Network

N/A

Files

memory/3028-4-0x0000000074FB0000-0x0000000074FC6000-memory.dmp

memory/3028-3-0x0000000074FB0000-0x0000000074FC6000-memory.dmp

memory/3028-2-0x0000000074FB0000-0x0000000074FC6000-memory.dmp

memory/3028-1-0x0000000074FB0000-0x0000000074FC6000-memory.dmp

memory/3028-0-0x0000000000130000-0x000000000014D000-memory.dmp

memory/3028-5-0x0000000074FB0000-0x0000000074FC6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-06 17:01

Reported

2024-10-06 17:04

Platform

win10v2004-20240802-en

Max time kernel

91s

Max time network

136s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\18f05d6546ef7e942f36ce47bd3603c8_JaffaCakes118.dll,#1

Signatures

Gozi

banker trojan gozi

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 388 wrote to memory of 1732 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 388 wrote to memory of 1732 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 388 wrote to memory of 1732 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\18f05d6546ef7e942f36ce47bd3603c8_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\18f05d6546ef7e942f36ce47bd3603c8_JaffaCakes118.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/1732-0-0x00000000009A0000-0x00000000009BD000-memory.dmp

memory/1732-1-0x0000000074B70000-0x0000000074B86000-memory.dmp

memory/1732-2-0x0000000074B70000-0x0000000074B86000-memory.dmp

memory/1732-3-0x0000000074B70000-0x0000000074B86000-memory.dmp