Malware Analysis Report

2025-06-15 23:50

Sample ID 241113-rkx8jasphx
Target b77789f876661ef223642be2488c28da007003e1412249b96fadb79b04a3f767
SHA256 b77789f876661ef223642be2488c28da007003e1412249b96fadb79b04a3f767
Tags
emotet epoch3 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

b77789f876661ef223642be2488c28da007003e1412249b96fadb79b04a3f767

Threat Level: Known bad

The file b77789f876661ef223642be2488c28da007003e1412249b96fadb79b04a3f767 was found to be: Known bad.

Malicious Activity Summary

emotet epoch3 banker discovery trojan

Emotet

Emotet family

Blocklisted process makes network request

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 14:15

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 14:15

Reported

2024-11-13 14:18

Platform

win7-20240903-en

Max time kernel

148s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b77789f876661ef223642be2488c28da007003e1412249b96fadb79b04a3f767.dll,#1

Signatures

Emotet

trojan banker emotet

Emotet family

emotet

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2268 wrote to memory of 2692 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2268 wrote to memory of 2692 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2268 wrote to memory of 2692 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2268 wrote to memory of 2692 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2268 wrote to memory of 2692 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2268 wrote to memory of 2692 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2268 wrote to memory of 2692 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b77789f876661ef223642be2488c28da007003e1412249b96fadb79b04a3f767.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b77789f876661ef223642be2488c28da007003e1412249b96fadb79b04a3f767.dll,#1

Network

Country Destination Domain Proto
VN 113.161.176.235:80 tcp
VN 113.161.176.235:80 tcp
TR 88.247.30.64:80 tcp
TR 88.247.30.64:80 tcp
DE 89.163.210.141:8080 tcp
DE 89.163.210.141:8080 tcp

Files

memory/2692-0-0x0000000000380000-0x00000000003A2000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 14:15

Reported

2024-11-13 14:18

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

149s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b77789f876661ef223642be2488c28da007003e1412249b96fadb79b04a3f767.dll,#1

Signatures

Emotet

trojan banker emotet

Emotet family

emotet

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2584 wrote to memory of 3024 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2584 wrote to memory of 3024 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2584 wrote to memory of 3024 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b77789f876661ef223642be2488c28da007003e1412249b96fadb79b04a3f767.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b77789f876661ef223642be2488c28da007003e1412249b96fadb79b04a3f767.dll,#1

Network

Country Destination Domain Proto
VN 113.161.176.235:80 tcp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 101.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
TR 88.247.30.64:80 tcp
DE 89.163.210.141:8080 tcp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
SG 139.162.10.249:8080 tcp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
TH 203.157.152.9:7080 tcp
RO 109.99.146.210:8080 tcp

Files

memory/3024-0-0x0000000002840000-0x0000000002862000-memory.dmp