Malware Analysis Report

2024-12-01 01:31

Sample ID 241110-bsgbzswerp
Target a47877e7cf70e46ef4815230226f0e907f388698f00c7439fa8124d4457326e0
SHA256 a47877e7cf70e46ef4815230226f0e907f388698f00c7439fa8124d4457326e0
Tags
discovery
score
3/10

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
3/10

SHA256

a47877e7cf70e46ef4815230226f0e907f388698f00c7439fa8124d4457326e0

Threat Level: Likely benign

The file a47877e7cf70e46ef4815230226f0e907f388698f00c7439fa8124d4457326e0 was found to be: Likely benign.

Malicious Activity Summary

discovery

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-10 01:24

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-10 01:24

Reported

2024-11-10 01:26

Platform

win10v2004-20241007-en

Max time kernel

141s

Max time network

139s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\a47877e7cf70e46ef4815230226f0e907f388698f00c7439fa8124d4457326e0.dll,#1

Signatures

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 behavior: RenamesItself

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4320 wrote to memory of 572 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4320 wrote to memory of 572 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4320 wrote to memory of 572 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\a47877e7cf70e46ef4815230226f0e907f388698f00c7439fa8124d4457326e0.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\a47877e7cf70e46ef4815230226f0e907f388698f00c7439fa8124d4457326e0.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 98.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp

Files

memory/572-0-0x0000000075480000-0x0000000075490000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 01:24

Reported

2024-11-10 01:26

Platform

win7-20240903-en

Max time kernel

141s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\a47877e7cf70e46ef4815230226f0e907f388698f00c7439fa8124d4457326e0.dll,#1

Signatures

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 behavior: RenamesItself

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2736 wrote to memory of 2824 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2736 wrote to memory of 2824 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2736 wrote to memory of 2824 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2736 wrote to memory of 2824 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2736 wrote to memory of 2824 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2736 wrote to memory of 2824 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2736 wrote to memory of 2824 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\a47877e7cf70e46ef4815230226f0e907f388698f00c7439fa8124d4457326e0.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\a47877e7cf70e46ef4815230226f0e907f388698f00c7439fa8124d4457326e0.dll,#1

Network

N/A

Files

memory/2824-0-0x00000000745A0000-0x00000000745B0000-memory.dmp