Malware Analysis Report

2024-12-07 04:13

Sample ID 241113-wkr4qsxakq
Target 655e0ca5b627919ddab74a441b9bb7db87029ad70c8b6fa202155968ad44d0d6
SHA256 655e0ca5b627919ddab74a441b9bb7db87029ad70c8b6fa202155968ad44d0d6
Tags
emotet epoch4 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

655e0ca5b627919ddab74a441b9bb7db87029ad70c8b6fa202155968ad44d0d6

Threat Level: Known bad

The file 655e0ca5b627919ddab74a441b9bb7db87029ad70c8b6fa202155968ad44d0d6 was found to be: Known bad.

Malicious Activity Summary

emotet epoch4 banker discovery trojan

Emotet family

Emotet

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 17:59

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 17:59

Reported

2024-11-13 18:01

Platform

win7-20241010-en

Max time kernel

121s

Max time network

126s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\655e0ca5b627919ddab74a441b9bb7db87029ad70c8b6fa202155968ad44d0d6.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 2236 wrote to memory of 2280 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2236 wrote to memory of 2280 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2236 wrote to memory of 2280 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2236 wrote to memory of 2280 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2236 wrote to memory of 2280 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2236 wrote to memory of 2280 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2236 wrote to memory of 2280 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2280 wrote to memory of 2188 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2280 wrote to memory of 2188 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2280 wrote to memory of 2188 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2280 wrote to memory of 2188 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2280 wrote to memory of 2188 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2280 wrote to memory of 2188 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2280 wrote to memory of 2188 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\655e0ca5b627919ddab74a441b9bb7db87029ad70c8b6fa202155968ad44d0d6.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\655e0ca5b627919ddab74a441b9bb7db87029ad70c8b6fa202155968ad44d0d6.dll

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\655e0ca5b627919ddab74a441b9bb7db87029ad70c8b6fa202155968ad44d0d6.dll",DllRegisterServer

Network

N/A

Files

memory/2280-0-0x00000000002A0000-0x00000000002C5000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 17:59

Reported

2024-11-13 18:01

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

137s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\655e0ca5b627919ddab74a441b9bb7db87029ad70c8b6fa202155968ad44d0d6.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 2896 wrote to memory of 2348 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2896 wrote to memory of 2348 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2896 wrote to memory of 2348 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2348 wrote to memory of 1948 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2348 wrote to memory of 1948 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2348 wrote to memory of 1948 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\655e0ca5b627919ddab74a441b9bb7db87029ad70c8b6fa202155968ad44d0d6.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\655e0ca5b627919ddab74a441b9bb7db87029ad70c8b6fa202155968ad44d0d6.dll

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\655e0ca5b627919ddab74a441b9bb7db87029ad70c8b6fa202155968ad44d0d6.dll",DllRegisterServer

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 72.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 70.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

memory/2348-0-0x0000000002A50000-0x0000000002A75000-memory.dmp