Malware Analysis Report

2025-04-03 11:08

Sample ID 241109-1y3jvatckq
Target ddadc893682e81ccd25df9f834e2d8702a9ae6761c7ca4ee96bd72fdb86fd84aN
SHA256 ddadc893682e81ccd25df9f834e2d8702a9ae6761c7ca4ee96bd72fdb86fd84a
Tags
discovery persistence
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

ddadc893682e81ccd25df9f834e2d8702a9ae6761c7ca4ee96bd72fdb86fd84a

Threat Level: Shows suspicious behavior

The file ddadc893682e81ccd25df9f834e2d8702a9ae6761c7ca4ee96bd72fdb86fd84aN was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery persistence

ACProtect 1.3x - 1.4x DLL software

Adds Run key to start application

Drops file in System32 directory

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 22:04

Signatures

ACProtect 1.3x - 1.4x DLL software

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

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 22:04

Reported

2024-11-09 22:06

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

94s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\ddadc893682e81ccd25df9f834e2d8702a9ae6761c7ca4ee96bd72fdb86fd84aN.dll,#1

Signatures

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ctfmen = "C:\\Windows\\system32\\ctfmen.exe" C:\Windows\SysWOW64\rundll32.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\satornas.dll C:\Windows\SysWOW64\rundll32.exe N/A
File opened for modification C:\Windows\SysWOW64\satornas.dll C:\Windows\SysWOW64\rundll32.exe N/A

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 WriteProcessMemory

Description Indicator Process Target
PID 1876 wrote to memory of 3088 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1876 wrote to memory of 3088 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1876 wrote to memory of 3088 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\ddadc893682e81ccd25df9f834e2d8702a9ae6761c7ca4ee96bd72fdb86fd84aN.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\ddadc893682e81ccd25df9f834e2d8702a9ae6761c7ca4ee96bd72fdb86fd84aN.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 106.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

memory/3088-0-0x0000000010000000-0x000000001000D000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 22:04

Reported

2024-11-09 22:06

Platform

win7-20240903-en

Max time kernel

117s

Max time network

117s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\ddadc893682e81ccd25df9f834e2d8702a9ae6761c7ca4ee96bd72fdb86fd84aN.dll,#1

Signatures

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ctfmen = "C:\\Windows\\system32\\ctfmen.exe" C:\Windows\SysWOW64\rundll32.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\satornas.dll C:\Windows\SysWOW64\rundll32.exe N/A
File created C:\Windows\SysWOW64\satornas.dll C:\Windows\SysWOW64\rundll32.exe N/A

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 WriteProcessMemory

Description Indicator Process Target
PID 1744 wrote to memory of 2004 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1744 wrote to memory of 2004 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1744 wrote to memory of 2004 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1744 wrote to memory of 2004 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1744 wrote to memory of 2004 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1744 wrote to memory of 2004 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1744 wrote to memory of 2004 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\ddadc893682e81ccd25df9f834e2d8702a9ae6761c7ca4ee96bd72fdb86fd84aN.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\ddadc893682e81ccd25df9f834e2d8702a9ae6761c7ca4ee96bd72fdb86fd84aN.dll,#1

Network

N/A

Files

memory/2004-3-0x0000000010000000-0x000000001000D000-memory.dmp

memory/2004-2-0x0000000010000000-0x000000001000D000-memory.dmp

memory/2004-1-0x0000000010000000-0x000000001000D000-memory.dmp

memory/2004-0-0x0000000010000000-0x000000001000D000-memory.dmp