Malware Analysis Report

2025-08-11 07:58

Sample ID 241112-zjmz6s1clf
Target 66e567f739e91940be88ef6dfbeb49f34a0be085ab730f7f62e545a9b807c0c8
SHA256 66e567f739e91940be88ef6dfbeb49f34a0be085ab730f7f62e545a9b807c0c8
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

66e567f739e91940be88ef6dfbeb49f34a0be085ab730f7f62e545a9b807c0c8

Threat Level: Known bad

The file 66e567f739e91940be88ef6dfbeb49f34a0be085ab730f7f62e545a9b807c0c8 was found to be: Known bad.

Malicious Activity Summary

emotet epoch5 banker discovery trojan

Emotet

Emotet family

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-12 20:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-12 20:44

Reported

2024-11-12 20:47

Platform

win7-20240903-en

Max time kernel

118s

Max time network

119s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\66e567f739e91940be88ef6dfbeb49f34a0be085ab730f7f62e545a9b807c0c8.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 2116 wrote to memory of 2676 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2116 wrote to memory of 2676 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2116 wrote to memory of 2676 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2116 wrote to memory of 2676 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2116 wrote to memory of 2676 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2116 wrote to memory of 2676 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2116 wrote to memory of 2676 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2676 wrote to memory of 332 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2676 wrote to memory of 332 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2676 wrote to memory of 332 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2676 wrote to memory of 332 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2676 wrote to memory of 332 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2676 wrote to memory of 332 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2676 wrote to memory of 332 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\66e567f739e91940be88ef6dfbeb49f34a0be085ab730f7f62e545a9b807c0c8.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\66e567f739e91940be88ef6dfbeb49f34a0be085ab730f7f62e545a9b807c0c8.dll

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\66e567f739e91940be88ef6dfbeb49f34a0be085ab730f7f62e545a9b807c0c8.dll",DllRegisterServer

Network

N/A

Files

memory/2676-0-0x0000000000200000-0x0000000000228000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-12 20:44

Reported

2024-11-12 20:47

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

154s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\66e567f739e91940be88ef6dfbeb49f34a0be085ab730f7f62e545a9b807c0c8.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 4624 wrote to memory of 2656 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4624 wrote to memory of 2656 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4624 wrote to memory of 2656 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2656 wrote to memory of 2228 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2656 wrote to memory of 2228 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2656 wrote to memory of 2228 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\66e567f739e91940be88ef6dfbeb49f34a0be085ab730f7f62e545a9b807c0c8.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\66e567f739e91940be88ef6dfbeb49f34a0be085ab730f7f62e545a9b807c0c8.dll

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\66e567f739e91940be88ef6dfbeb49f34a0be085ab730f7f62e545a9b807c0c8.dll",DllRegisterServer

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp

Files

memory/2656-0-0x0000000002500000-0x0000000002528000-memory.dmp