Malware Analysis Report

2024-11-30 21:30

Sample ID 231230-24tdssaaaq
Target 1f786aa0605b6db5dd61bb5e9e8eff0c
SHA256 697dd8ef65cb81c9038e77ae28a26f1540a6eb811fc074e2ff68081a5c095372
Tags
dridex botnet evasion payload trojan persistence
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

697dd8ef65cb81c9038e77ae28a26f1540a6eb811fc074e2ff68081a5c095372

Threat Level: Known bad

The file 1f786aa0605b6db5dd61bb5e9e8eff0c was found to be: Known bad.

Malicious Activity Summary

dridex botnet evasion payload trojan persistence

Dridex

Dridex Shellcode

Loads dropped DLL

Executes dropped EXE

Adds Run key to start application

Checks whether UAC is enabled

Unsigned PE

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-30 23:08

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-30 23:08

Reported

2024-01-01 11:12

Platform

win10v2004-20231222-en

Max time kernel

0s

Max time network

144s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f786aa0605b6db5dd61bb5e9e8eff0c.dll,#1

Signatures

Dridex

botnet dridex

Dridex Shellcode

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

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Windows\system32\rundll32.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f786aa0605b6db5dd61bb5e9e8eff0c.dll,#1

C:\Windows\system32\RdpSa.exe

C:\Windows\system32\RdpSa.exe

C:\Windows\system32\CameraSettingsUIHost.exe

C:\Windows\system32\CameraSettingsUIHost.exe

C:\Users\Admin\AppData\Local\lrth86zn\RdpSa.exe

C:\Users\Admin\AppData\Local\lrth86zn\RdpSa.exe

C:\Windows\system32\wermgr.exe

C:\Windows\system32\wermgr.exe

C:\Users\Admin\AppData\Local\bo1IFr\wermgr.exe

C:\Users\Admin\AppData\Local\bo1IFr\wermgr.exe

C:\Users\Admin\AppData\Local\yY3nHI\CameraSettingsUIHost.exe

C:\Users\Admin\AppData\Local\yY3nHI\CameraSettingsUIHost.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 20.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
IE 20.54.110.119:443 tcp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 20.3.187.198:443 tcp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 20.3.187.198:443 tcp

Files

memory/4300-0-0x0000000140000000-0x000000014033F000-memory.dmp

memory/4300-2-0x0000015EC42E0000-0x0000015EC42E7000-memory.dmp

memory/3428-5-0x00007FFB01BEA000-0x00007FFB01BEB000-memory.dmp

memory/3428-12-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-17-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-22-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-26-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-30-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-34-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-38-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-40-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-43-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-46-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-50-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-54-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-58-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-61-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-65-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-64-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-63-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-71-0x0000000000CB0000-0x0000000000CB7000-memory.dmp

memory/3428-62-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-79-0x00007FFB039A0000-0x00007FFB039B0000-memory.dmp

memory/3428-60-0x0000000140000000-0x000000014033F000-memory.dmp

memory/5048-99-0x000002677B3D0000-0x000002677B3D7000-memory.dmp

memory/3428-59-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-57-0x0000000140000000-0x000000014033F000-memory.dmp

memory/432-118-0x000001E262660000-0x000001E262667000-memory.dmp

memory/1668-133-0x0000028B1B2F0000-0x0000028B1B2F7000-memory.dmp

memory/3428-56-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-55-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-53-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-52-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-51-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-49-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-48-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-47-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-45-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-44-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-42-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-41-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-39-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-37-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-36-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-35-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-32-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-33-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-31-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-29-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-28-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-27-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-25-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-24-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-23-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-21-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-20-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-19-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-18-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-16-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-15-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-14-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-13-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-11-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-10-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-9-0x0000000140000000-0x000000014033F000-memory.dmp

memory/4300-8-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-7-0x0000000140000000-0x000000014033F000-memory.dmp

memory/3428-4-0x0000000002DE0000-0x0000000002DE1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-30 23:08

Reported

2024-01-01 11:13

Platform

win7-20231215-en

Max time kernel

60s

Max time network

125s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f786aa0605b6db5dd61bb5e9e8eff0c.dll,#1

Signatures

Dridex

botnet dridex

Dridex Shellcode

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A C:\Users\Admin\AppData\Local\4Mg9qMh\shrpubw.exe N/A
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N/A N/A C:\Users\Admin\AppData\Local\Z0wVOF\SndVol.exe N/A
N/A N/A N/A N/A
N/A N/A C:\Users\Admin\AppData\Local\z0V\rdpclip.exe N/A
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\Srfjajs = "C:\\Users\\Admin\\AppData\\Roaming\\Adobe\\FLASHP~1\\ASSETC~1\\PQNBCP~1\\SndVol.exe" N/A N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Z0wVOF\SndVol.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\z0V\rdpclip.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Windows\system32\rundll32.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\4Mg9qMh\shrpubw.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
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Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1320 wrote to memory of 2824 N/A N/A C:\Windows\system32\shrpubw.exe
PID 1320 wrote to memory of 2824 N/A N/A C:\Windows\system32\shrpubw.exe
PID 1320 wrote to memory of 2824 N/A N/A C:\Windows\system32\shrpubw.exe
PID 1320 wrote to memory of 2948 N/A N/A C:\Users\Admin\AppData\Local\4Mg9qMh\shrpubw.exe
PID 1320 wrote to memory of 2948 N/A N/A C:\Users\Admin\AppData\Local\4Mg9qMh\shrpubw.exe
PID 1320 wrote to memory of 2948 N/A N/A C:\Users\Admin\AppData\Local\4Mg9qMh\shrpubw.exe
PID 1320 wrote to memory of 1828 N/A N/A C:\Windows\system32\SndVol.exe
PID 1320 wrote to memory of 1828 N/A N/A C:\Windows\system32\SndVol.exe
PID 1320 wrote to memory of 1828 N/A N/A C:\Windows\system32\SndVol.exe
PID 1320 wrote to memory of 1072 N/A N/A C:\Users\Admin\AppData\Local\Z0wVOF\SndVol.exe
PID 1320 wrote to memory of 1072 N/A N/A C:\Users\Admin\AppData\Local\Z0wVOF\SndVol.exe
PID 1320 wrote to memory of 1072 N/A N/A C:\Users\Admin\AppData\Local\Z0wVOF\SndVol.exe
PID 1320 wrote to memory of 836 N/A N/A C:\Windows\system32\rdpclip.exe
PID 1320 wrote to memory of 836 N/A N/A C:\Windows\system32\rdpclip.exe
PID 1320 wrote to memory of 836 N/A N/A C:\Windows\system32\rdpclip.exe
PID 1320 wrote to memory of 2784 N/A N/A C:\Users\Admin\AppData\Local\z0V\rdpclip.exe
PID 1320 wrote to memory of 2784 N/A N/A C:\Users\Admin\AppData\Local\z0V\rdpclip.exe
PID 1320 wrote to memory of 2784 N/A N/A C:\Users\Admin\AppData\Local\z0V\rdpclip.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f786aa0605b6db5dd61bb5e9e8eff0c.dll,#1

C:\Windows\system32\shrpubw.exe

C:\Windows\system32\shrpubw.exe

C:\Users\Admin\AppData\Local\4Mg9qMh\shrpubw.exe

C:\Users\Admin\AppData\Local\4Mg9qMh\shrpubw.exe

C:\Windows\system32\SndVol.exe

C:\Windows\system32\SndVol.exe

C:\Users\Admin\AppData\Local\Z0wVOF\SndVol.exe

C:\Users\Admin\AppData\Local\Z0wVOF\SndVol.exe

C:\Windows\system32\rdpclip.exe

C:\Windows\system32\rdpclip.exe

C:\Users\Admin\AppData\Local\z0V\rdpclip.exe

C:\Users\Admin\AppData\Local\z0V\rdpclip.exe

Network

N/A

Files

memory/1320-5-0x0000000002720000-0x0000000002721000-memory.dmp

memory/1320-4-0x00000000772D6000-0x00000000772D7000-memory.dmp

memory/2512-1-0x0000000140000000-0x000000014033F000-memory.dmp

memory/2512-0-0x0000000000190000-0x0000000000197000-memory.dmp

memory/1320-8-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-11-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-16-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-21-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-25-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-29-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-33-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-38-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-43-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-47-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-51-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-55-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-58-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-61-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-65-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-64-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-70-0x0000000002700000-0x0000000002707000-memory.dmp

memory/1320-63-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-62-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-60-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-59-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-80-0x0000000077640000-0x0000000077642000-memory.dmp

memory/1320-79-0x00000000774E1000-0x00000000774E2000-memory.dmp

memory/1320-57-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-56-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-54-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-53-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-52-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-50-0x0000000140000000-0x000000014033F000-memory.dmp

memory/2948-107-0x0000000000130000-0x0000000000137000-memory.dmp

memory/1320-48-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-49-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-46-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-45-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-44-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-42-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-41-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-40-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-39-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-37-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-36-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-35-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-34-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-32-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-31-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-30-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-28-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-27-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-26-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-24-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-23-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-22-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-20-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-19-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-18-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-17-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-15-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-14-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-13-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-12-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-10-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1320-9-0x0000000140000000-0x000000014033F000-memory.dmp

memory/2512-7-0x0000000140000000-0x000000014033F000-memory.dmp

memory/1072-131-0x0000000000220000-0x0000000000227000-memory.dmp

memory/2784-155-0x0000000000270000-0x0000000000277000-memory.dmp

memory/1320-183-0x00000000772D6000-0x00000000772D7000-memory.dmp