Malware Analysis Report

2025-01-18 15:45

Sample ID 240817-xy4v5asbka
Target 170ff11802ca3e079cda72ba6c8f945fbe199341d03239ce7cfce8c231df5fe8
SHA256 170ff11802ca3e079cda72ba6c8f945fbe199341d03239ce7cfce8c231df5fe8
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

170ff11802ca3e079cda72ba6c8f945fbe199341d03239ce7cfce8c231df5fe8

Threat Level: Known bad

The file 170ff11802ca3e079cda72ba6c8f945fbe199341d03239ce7cfce8c231df5fe8 was found to be: Known bad.

Malicious Activity Summary

dridex 22202 botnet discovery loader

Dridex

Dridex Loader

Unsigned PE

Program crash

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-17 19:16

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-17 19:16

Reported

2024-08-17 19:19

Platform

win7-20240704-en

Max time kernel

140s

Max time network

120s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\170ff11802ca3e079cda72ba6c8f945fbe199341d03239ce7cfce8c231df5fe8.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\170ff11802ca3e079cda72ba6c8f945fbe199341d03239ce7cfce8c231df5fe8.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\170ff11802ca3e079cda72ba6c8f945fbe199341d03239ce7cfce8c231df5fe8.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 252

Network

N/A

Files

memory/2004-2-0x0000000000130000-0x0000000000136000-memory.dmp

memory/2004-0-0x00000000751F0000-0x0000000075220000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-17 19:16

Reported

2024-08-17 19:19

Platform

win10v2004-20240802-en

Max time kernel

130s

Max time network

125s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\170ff11802ca3e079cda72ba6c8f945fbe199341d03239ce7cfce8c231df5fe8.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 4872 wrote to memory of 1824 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4872 wrote to memory of 1824 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4872 wrote to memory of 1824 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\170ff11802ca3e079cda72ba6c8f945fbe199341d03239ce7cfce8c231df5fe8.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\170ff11802ca3e079cda72ba6c8f945fbe199341d03239ce7cfce8c231df5fe8.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1824 -ip 1824

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1824 -s 648

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 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/1824-0-0x0000000000EF0000-0x0000000000EF6000-memory.dmp

memory/1824-1-0x00000000756B0000-0x00000000756E0000-memory.dmp

memory/1824-3-0x0000000000EF0000-0x0000000000EF6000-memory.dmp