Malware Analysis Report

2024-12-07 04:17

Sample ID 241113-wcsejawfnf
Target aa7953faa1c4d2533e64fea3cf11d3fbd0486b2ee0cfbc5afbe0d1eff483c593
SHA256 aa7953faa1c4d2533e64fea3cf11d3fbd0486b2ee0cfbc5afbe0d1eff483c593
Tags
emotet epoch5 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

aa7953faa1c4d2533e64fea3cf11d3fbd0486b2ee0cfbc5afbe0d1eff483c593

Threat Level: Known bad

The file aa7953faa1c4d2533e64fea3cf11d3fbd0486b2ee0cfbc5afbe0d1eff483c593 was found to be: Known bad.

Malicious Activity Summary

emotet epoch5 banker discovery trojan

Emotet

Emotet family

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 17:46

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 17:46

Reported

2024-11-13 17:49

Platform

win7-20241023-en

Max time kernel

119s

Max time network

123s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\aa7953faa1c4d2533e64fea3cf11d3fbd0486b2ee0cfbc5afbe0d1eff483c593.dll

Signatures

Emotet

trojan banker emotet

Emotet family

emotet

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\regsvr32.exe N/A
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 2656 wrote to memory of 848 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2656 wrote to memory of 848 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2656 wrote to memory of 848 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2656 wrote to memory of 848 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2656 wrote to memory of 848 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2656 wrote to memory of 848 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2656 wrote to memory of 848 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 848 wrote to memory of 1668 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 848 wrote to memory of 1668 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 848 wrote to memory of 1668 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 848 wrote to memory of 1668 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 848 wrote to memory of 1668 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 848 wrote to memory of 1668 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 848 wrote to memory of 1668 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\aa7953faa1c4d2533e64fea3cf11d3fbd0486b2ee0cfbc5afbe0d1eff483c593.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\aa7953faa1c4d2533e64fea3cf11d3fbd0486b2ee0cfbc5afbe0d1eff483c593.dll

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\aa7953faa1c4d2533e64fea3cf11d3fbd0486b2ee0cfbc5afbe0d1eff483c593.dll",DllRegisterServer

Network

N/A

Files

memory/848-0-0x0000000010000000-0x0000000010025000-memory.dmp

memory/848-1-0x0000000010000000-0x0000000010025000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 17:46

Reported

2024-11-13 17:49

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\aa7953faa1c4d2533e64fea3cf11d3fbd0486b2ee0cfbc5afbe0d1eff483c593.dll

Signatures

Emotet

trojan banker emotet

Emotet family

emotet

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\regsvr32.exe N/A
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 3952 wrote to memory of 4604 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 3952 wrote to memory of 4604 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 3952 wrote to memory of 4604 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4604 wrote to memory of 2912 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4604 wrote to memory of 2912 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4604 wrote to memory of 2912 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\aa7953faa1c4d2533e64fea3cf11d3fbd0486b2ee0cfbc5afbe0d1eff483c593.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\aa7953faa1c4d2533e64fea3cf11d3fbd0486b2ee0cfbc5afbe0d1eff483c593.dll

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\aa7953faa1c4d2533e64fea3cf11d3fbd0486b2ee0cfbc5afbe0d1eff483c593.dll",DllRegisterServer

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp

Files

memory/4604-0-0x0000000010000000-0x0000000010025000-memory.dmp

memory/4604-1-0x0000000010000000-0x0000000010025000-memory.dmp