Malware Analysis Report

2025-08-05 11:08

Sample ID 241112-1k4jzs1law
Target 2979827b61b97869862cf4b1353b77f1c89785b678e071da3b95ee90681615e3
SHA256 2979827b61b97869862cf4b1353b77f1c89785b678e071da3b95ee90681615e3
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

2979827b61b97869862cf4b1353b77f1c89785b678e071da3b95ee90681615e3

Threat Level: Known bad

The file 2979827b61b97869862cf4b1353b77f1c89785b678e071da3b95ee90681615e3 was found to be: Known bad.

Malicious Activity Summary

emotet epoch4 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 21:43

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-12 21:43

Reported

2024-11-12 21:46

Platform

win7-20240903-en

Max time kernel

118s

Max time network

120s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2979827b61b97869862cf4b1353b77f1c89785b678e071da3b95ee90681615e3.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\rundll32.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1564 wrote to memory of 1540 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1564 wrote to memory of 1540 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1564 wrote to memory of 1540 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1564 wrote to memory of 1540 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1564 wrote to memory of 1540 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1564 wrote to memory of 1540 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1564 wrote to memory of 1540 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1540 wrote to memory of 2528 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1540 wrote to memory of 2528 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1540 wrote to memory of 2528 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1540 wrote to memory of 2528 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1540 wrote to memory of 2528 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1540 wrote to memory of 2528 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1540 wrote to memory of 2528 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\2979827b61b97869862cf4b1353b77f1c89785b678e071da3b95ee90681615e3.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\2979827b61b97869862cf4b1353b77f1c89785b678e071da3b95ee90681615e3.dll

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\2979827b61b97869862cf4b1353b77f1c89785b678e071da3b95ee90681615e3.dll",DllRegisterServer

Network

N/A

Files

memory/1540-0-0x00000000001D0000-0x00000000001F6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-12 21:43

Reported

2024-11-12 21:46

Platform

win10v2004-20241007-en

Max time kernel

97s

Max time network

138s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2979827b61b97869862cf4b1353b77f1c89785b678e071da3b95ee90681615e3.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 1488 wrote to memory of 2124 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1488 wrote to memory of 2124 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1488 wrote to memory of 2124 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2124 wrote to memory of 3840 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2124 wrote to memory of 3840 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2124 wrote to memory of 3840 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\2979827b61b97869862cf4b1353b77f1c89785b678e071da3b95ee90681615e3.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\2979827b61b97869862cf4b1353b77f1c89785b678e071da3b95ee90681615e3.dll

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\2979827b61b97869862cf4b1353b77f1c89785b678e071da3b95ee90681615e3.dll",DllRegisterServer

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 102.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 98.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp

Files

memory/2124-0-0x0000000002620000-0x0000000002646000-memory.dmp