Malware Analysis Report

2025-08-05 11:08

Sample ID 241112-1kldeasbja
Target 85e806475619e4b4b7ba15410628212f10387855ff2e8a2c5a6b5d64edf43d59
SHA256 85e806475619e4b4b7ba15410628212f10387855ff2e8a2c5a6b5d64edf43d59
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

85e806475619e4b4b7ba15410628212f10387855ff2e8a2c5a6b5d64edf43d59

Threat Level: Known bad

The file 85e806475619e4b4b7ba15410628212f10387855ff2e8a2c5a6b5d64edf43d59 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 21:42

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-12 21:42

Reported

2024-11-12 21:45

Platform

win7-20241023-en

Max time kernel

121s

Max time network

122s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\85e806475619e4b4b7ba15410628212f10387855ff2e8a2c5a6b5d64edf43d59.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 1048 wrote to memory of 2776 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1048 wrote to memory of 2776 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1048 wrote to memory of 2776 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1048 wrote to memory of 2776 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1048 wrote to memory of 2776 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1048 wrote to memory of 2776 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1048 wrote to memory of 2776 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2776 wrote to memory of 2612 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2776 wrote to memory of 2612 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2776 wrote to memory of 2612 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2776 wrote to memory of 2612 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2776 wrote to memory of 2612 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2776 wrote to memory of 2612 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2776 wrote to memory of 2612 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\85e806475619e4b4b7ba15410628212f10387855ff2e8a2c5a6b5d64edf43d59.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\85e806475619e4b4b7ba15410628212f10387855ff2e8a2c5a6b5d64edf43d59.dll

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\85e806475619e4b4b7ba15410628212f10387855ff2e8a2c5a6b5d64edf43d59.dll",DllRegisterServer

Network

N/A

Files

memory/2776-0-0x00000000002A0000-0x00000000002C8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-12 21:42

Reported

2024-11-12 21:45

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\85e806475619e4b4b7ba15410628212f10387855ff2e8a2c5a6b5d64edf43d59.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 1392 wrote to memory of 4840 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1392 wrote to memory of 4840 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1392 wrote to memory of 4840 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4840 wrote to memory of 1788 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4840 wrote to memory of 1788 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4840 wrote to memory of 1788 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\85e806475619e4b4b7ba15410628212f10387855ff2e8a2c5a6b5d64edf43d59.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\85e806475619e4b4b7ba15410628212f10387855ff2e8a2c5a6b5d64edf43d59.dll

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\85e806475619e4b4b7ba15410628212f10387855ff2e8a2c5a6b5d64edf43d59.dll",DllRegisterServer

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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.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 82.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/4840-0-0x0000000002C70000-0x0000000002C98000-memory.dmp