Malware Analysis Report

2025-01-18 15:44

Sample ID 240816-htznaa1fle
Target 483a908dba24ae04106eb45b18ff7230N.exe
SHA256 046eba7fd7191009647a9685c35d449df0ebf26cb6bcd3e7b7d04fdbc8315b70
Tags
dridex 22202 botnet discovery loader
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

046eba7fd7191009647a9685c35d449df0ebf26cb6bcd3e7b7d04fdbc8315b70

Threat Level: Known bad

The file 483a908dba24ae04106eb45b18ff7230N.exe was found to be: Known bad.

Malicious Activity Summary

dridex 22202 botnet discovery loader

Dridex

Dridex Loader

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-16 07:02

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-16 07:02

Reported

2024-08-16 07:04

Platform

win7-20240704-en

Max time kernel

119s

Max time network

16s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\483a908dba24ae04106eb45b18ff7230N.dll,#1

Signatures

Dridex

botnet dridex

Dridex Loader

botnet loader
Description Indicator Process Target
N/A N/A N/A N/A

Program crash

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

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

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\483a908dba24ae04106eb45b18ff7230N.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\483a908dba24ae04106eb45b18ff7230N.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 528 -s 220

Network

N/A

Files

memory/528-0-0x0000000000150000-0x0000000000156000-memory.dmp

memory/528-1-0x0000000074E40000-0x0000000074E6F000-memory.dmp

memory/528-4-0x0000000000150000-0x0000000000156000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-16 07:02

Reported

2024-08-16 07:04

Platform

win10v2004-20240802-en

Max time kernel

115s

Max time network

119s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\483a908dba24ae04106eb45b18ff7230N.dll,#1

Signatures

Dridex

botnet dridex

Dridex Loader

botnet loader
Description Indicator Process Target
N/A N/A N/A N/A

Program crash

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

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 1808 wrote to memory of 1988 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1808 wrote to memory of 1988 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1808 wrote to memory of 1988 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\483a908dba24ae04106eb45b18ff7230N.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\483a908dba24ae04106eb45b18ff7230N.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1988 -ip 1988

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1988 -s 624

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4128,i,16316361669272684588,6171287487746154806,262144 --variations-seed-version --mojo-platform-channel-handle=4076 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 www.microsoft.com udp
GB 95.100.245.144:80 www.microsoft.com tcp
US 8.8.8.8:53 144.245.100.95.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 68.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/1988-0-0x0000000001F30000-0x0000000001F36000-memory.dmp

memory/1988-1-0x0000000074A00000-0x0000000074A2F000-memory.dmp

memory/1988-3-0x0000000001F30000-0x0000000001F36000-memory.dmp