Malware Analysis Report

2025-06-15 23:51

Sample ID 241113-refrasspav
Target b04c3754149ad146155f7ded159f64c8615050c53df8c8909bd91e46576fa5af
SHA256 b04c3754149ad146155f7ded159f64c8615050c53df8c8909bd91e46576fa5af
Tags
emotet epoch4 banker trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

b04c3754149ad146155f7ded159f64c8615050c53df8c8909bd91e46576fa5af

Threat Level: Known bad

The file b04c3754149ad146155f7ded159f64c8615050c53df8c8909bd91e46576fa5af was found to be: Known bad.

Malicious Activity Summary

emotet epoch4 banker trojan

Emotet family

Emotet

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-11-13 14:06

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 14:06

Reported

2024-11-13 14:08

Platform

win7-20240729-en

Max time kernel

142s

Max time network

145s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b04c3754149ad146155f7ded159f64c8615050c53df8c8909bd91e46576fa5af.dll

Signatures

Emotet

trojan banker emotet

Emotet family

emotet

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\system32\regsvr32.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Windows\system32\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2464 wrote to memory of 1780 N/A C:\Windows\system32\regsvr32.exe C:\Windows\system32\regsvr32.exe
PID 2464 wrote to memory of 1780 N/A C:\Windows\system32\regsvr32.exe C:\Windows\system32\regsvr32.exe
PID 2464 wrote to memory of 1780 N/A C:\Windows\system32\regsvr32.exe C:\Windows\system32\regsvr32.exe
PID 2464 wrote to memory of 1780 N/A C:\Windows\system32\regsvr32.exe C:\Windows\system32\regsvr32.exe
PID 2464 wrote to memory of 1780 N/A C:\Windows\system32\regsvr32.exe C:\Windows\system32\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b04c3754149ad146155f7ded159f64c8615050c53df8c8909bd91e46576fa5af.dll

C:\Windows\system32\regsvr32.exe

C:\Windows\system32\regsvr32.exe "C:\Windows\system32\GXgvYn\xzMKSGVKSRU.dll"

Network

Country Destination Domain Proto
US 173.82.82.196:8080 tcp
US 173.82.82.196:8080 tcp
SG 159.89.202.34:443 tcp
SG 159.89.202.34:443 tcp
US 173.239.37.178:8080 tcp
US 173.239.37.178:8080 tcp
ES 89.29.244.7:443 tcp
ES 89.29.244.7:443 tcp
ES 89.29.244.7:443 tcp
ES 89.29.244.7:443 tcp
TH 150.95.66.124:8080 tcp
TH 150.95.66.124:8080 tcp

Files

memory/2464-0-0x0000000180000000-0x000000018002F000-memory.dmp

memory/2464-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

memory/2464-4-0x000007FEFA9F0000-0x000007FEFAA4F000-memory.dmp

memory/1780-8-0x0000000180000000-0x000000018002F000-memory.dmp

memory/1780-9-0x000007FEFAC00000-0x000007FEFAC5F000-memory.dmp

memory/1780-11-0x000007FEFAC00000-0x000007FEFAC5F000-memory.dmp

memory/1780-12-0x000007FEFAC00000-0x000007FEFAC5F000-memory.dmp

memory/1780-18-0x000007FEFAC00000-0x000007FEFAC5F000-memory.dmp

memory/1780-20-0x000007FEFAC00000-0x000007FEFAC5F000-memory.dmp

memory/1780-21-0x000007FEFAC00000-0x000007FEFAC5F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 14:06

Reported

2024-11-13 14:08

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

150s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b04c3754149ad146155f7ded159f64c8615050c53df8c8909bd91e46576fa5af.dll

Signatures

Emotet

trojan banker emotet

Emotet family

emotet

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\system32\regsvr32.exe N/A
N/A N/A C:\Windows\system32\regsvr32.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Windows\system32\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 652 wrote to memory of 2108 N/A C:\Windows\system32\regsvr32.exe C:\Windows\system32\regsvr32.exe
PID 652 wrote to memory of 2108 N/A C:\Windows\system32\regsvr32.exe C:\Windows\system32\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b04c3754149ad146155f7ded159f64c8615050c53df8c8909bd91e46576fa5af.dll

C:\Windows\system32\regsvr32.exe

C:\Windows\system32\regsvr32.exe "C:\Windows\system32\IoTQYd\LaSb.dll"

Network

Country Destination Domain Proto
US 8.8.8.8:53 107.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 173.82.82.196:8080 tcp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
SG 159.89.202.34:443 tcp
US 173.239.37.178:8080 tcp
ES 89.29.244.7:443 tcp
ES 89.29.244.7:443 tcp
ES 89.29.244.7:443 tcp
TH 150.95.66.124:8080 tcp
US 8.8.8.8:53 7.244.29.89.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
SG 159.65.140.115:443 tcp
EG 196.218.30.83:443 tcp
KR 119.193.124.41:7080 tcp
NL 77.81.247.144:8080 tcp
US 8.8.8.8:53 udp

Files

memory/652-0-0x0000000001370000-0x0000000001371000-memory.dmp

memory/652-1-0x0000000180000000-0x000000018002F000-memory.dmp

memory/652-4-0x00007FF878550000-0x00007FF8785AF000-memory.dmp

memory/2108-8-0x0000000180000000-0x000000018002F000-memory.dmp