Malware Analysis Report

2025-05-28 19:50

Sample ID 241109-k67krsvkeq
Target c2f6daf2a180e87e958cfab1d89154ca7cc81f97955e2ea4bdf77f4edabbe924N
SHA256 c2f6daf2a180e87e958cfab1d89154ca7cc81f97955e2ea4bdf77f4edabbe924
Tags
berbew backdoor discovery
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

c2f6daf2a180e87e958cfab1d89154ca7cc81f97955e2ea4bdf77f4edabbe924

Threat Level: Known bad

The file c2f6daf2a180e87e958cfab1d89154ca7cc81f97955e2ea4bdf77f4edabbe924N was found to be: Known bad.

Malicious Activity Summary

berbew backdoor discovery

Berbew

Berbew family

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 09:13

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 09:13

Reported

2024-11-09 09:15

Platform

win7-20241010-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c2f6daf2a180e87e958cfab1d89154ca7cc81f97955e2ea4bdf77f4edabbe924N.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\c2f6daf2a180e87e958cfab1d89154ca7cc81f97955e2ea4bdf77f4edabbe924N.exe

"C:\Users\Admin\AppData\Local\Temp\c2f6daf2a180e87e958cfab1d89154ca7cc81f97955e2ea4bdf77f4edabbe924N.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 140

Network

N/A

Files

memory/2700-0-0x0000000000400000-0x000000000043C000-memory.dmp

memory/2700-1-0x0000000000400000-0x000000000043C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 09:13

Reported

2024-11-09 09:15

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

96s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c2f6daf2a180e87e958cfab1d89154ca7cc81f97955e2ea4bdf77f4edabbe924N.exe"

Signatures

Berbew

backdoor berbew

Berbew family

berbew

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\c2f6daf2a180e87e958cfab1d89154ca7cc81f97955e2ea4bdf77f4edabbe924N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c2f6daf2a180e87e958cfab1d89154ca7cc81f97955e2ea4bdf77f4edabbe924N.exe

"C:\Users\Admin\AppData\Local\Temp\c2f6daf2a180e87e958cfab1d89154ca7cc81f97955e2ea4bdf77f4edabbe924N.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4892 -ip 4892

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4892 -s 396

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4892 -ip 4892

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4892 -s 404

Network

Country Destination Domain Proto
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 89.82.67.80.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/4892-0-0x0000000000400000-0x000000000043C000-memory.dmp

memory/4892-1-0x0000000000400000-0x000000000043C000-memory.dmp