Malware Analysis Report

2024-11-30 21:32

Sample ID 231230-1ctptaefd9
Target 1d0dfe8cb5ce6985affa09212965265b
SHA256 7451c36c889f034126cbb112409144e10c76c053846ac31d113f90d48ad96c08
Tags
dridex botnet evasion payload persistence trojan
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

7451c36c889f034126cbb112409144e10c76c053846ac31d113f90d48ad96c08

Threat Level: Known bad

The file 1d0dfe8cb5ce6985affa09212965265b was found to be: Known bad.

Malicious Activity Summary

dridex botnet evasion payload persistence trojan

Dridex

Dridex Shellcode

Loads dropped DLL

Executes dropped EXE

Adds Run key to start application

Checks whether UAC is enabled

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Uses Task Scheduler COM API

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-30 21:30

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-30 21:30

Reported

2024-01-04 11:45

Platform

win7-20231215-en

Max time kernel

150s

Max time network

118s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1d0dfe8cb5ce6985affa09212965265b.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
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N/A N/A C:\Users\Admin\AppData\Local\yn6Ke\wisptis.exe N/A
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N/A N/A C:\Users\Admin\AppData\Local\RJpQZXo\mmc.exe N/A
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N/A N/A C:\Users\Admin\AppData\Local\TxkJHFo\sethc.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-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\Bsfvntd = "C:\\Users\\Admin\\AppData\\Roaming\\MICROS~1\\INTERN~1\\UserData\\15BDD3~1\\mmc.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:\Windows\system32\rundll32.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\yn6Ke\wisptis.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\RJpQZXo\mmc.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\TxkJHFo\sethc.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 1196 wrote to memory of 1232 N/A N/A C:\Windows\system32\wisptis.exe
PID 1196 wrote to memory of 1232 N/A N/A C:\Windows\system32\wisptis.exe
PID 1196 wrote to memory of 1232 N/A N/A C:\Windows\system32\wisptis.exe
PID 1196 wrote to memory of 2988 N/A N/A C:\Users\Admin\AppData\Local\yn6Ke\wisptis.exe
PID 1196 wrote to memory of 2988 N/A N/A C:\Users\Admin\AppData\Local\yn6Ke\wisptis.exe
PID 1196 wrote to memory of 2988 N/A N/A C:\Users\Admin\AppData\Local\yn6Ke\wisptis.exe
PID 1196 wrote to memory of 860 N/A N/A C:\Windows\system32\mmc.exe
PID 1196 wrote to memory of 860 N/A N/A C:\Windows\system32\mmc.exe
PID 1196 wrote to memory of 860 N/A N/A C:\Windows\system32\mmc.exe
PID 1196 wrote to memory of 2916 N/A N/A C:\Users\Admin\AppData\Local\RJpQZXo\mmc.exe
PID 1196 wrote to memory of 2916 N/A N/A C:\Users\Admin\AppData\Local\RJpQZXo\mmc.exe
PID 1196 wrote to memory of 2916 N/A N/A C:\Users\Admin\AppData\Local\RJpQZXo\mmc.exe
PID 1196 wrote to memory of 2904 N/A N/A C:\Windows\system32\sethc.exe
PID 1196 wrote to memory of 2904 N/A N/A C:\Windows\system32\sethc.exe
PID 1196 wrote to memory of 2904 N/A N/A C:\Windows\system32\sethc.exe
PID 1196 wrote to memory of 2676 N/A N/A C:\Users\Admin\AppData\Local\TxkJHFo\sethc.exe
PID 1196 wrote to memory of 2676 N/A N/A C:\Users\Admin\AppData\Local\TxkJHFo\sethc.exe
PID 1196 wrote to memory of 2676 N/A N/A C:\Users\Admin\AppData\Local\TxkJHFo\sethc.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1d0dfe8cb5ce6985affa09212965265b.dll,#1

C:\Windows\system32\wisptis.exe

C:\Windows\system32\wisptis.exe

C:\Users\Admin\AppData\Local\yn6Ke\wisptis.exe

C:\Users\Admin\AppData\Local\yn6Ke\wisptis.exe

C:\Windows\system32\mmc.exe

C:\Windows\system32\mmc.exe

C:\Users\Admin\AppData\Local\RJpQZXo\mmc.exe

C:\Users\Admin\AppData\Local\RJpQZXo\mmc.exe

C:\Windows\system32\sethc.exe

C:\Windows\system32\sethc.exe

C:\Users\Admin\AppData\Local\TxkJHFo\sethc.exe

C:\Users\Admin\AppData\Local\TxkJHFo\sethc.exe

Network

N/A

Files

memory/2288-0-0x00000000002A0000-0x00000000002A7000-memory.dmp

memory/2288-1-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-4-0x0000000076EB6000-0x0000000076EB7000-memory.dmp

memory/1196-5-0x0000000002520000-0x0000000002521000-memory.dmp

memory/2288-8-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-11-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-19-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-26-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-33-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-40-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-47-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-53-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-58-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-65-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-64-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-63-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-72-0x0000000002500000-0x0000000002507000-memory.dmp

memory/1196-62-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-83-0x0000000077220000-0x0000000077222000-memory.dmp

memory/1196-82-0x00000000770C1000-0x00000000770C2000-memory.dmp

memory/1196-61-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-60-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-59-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-57-0x0000000140000000-0x0000000140386000-memory.dmp

memory/2988-110-0x0000000000110000-0x0000000000117000-memory.dmp

memory/1196-56-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-55-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-54-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-52-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-51-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-50-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-49-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-48-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-46-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-45-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-44-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-43-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-42-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-41-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-39-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-38-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-37-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-36-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-35-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-34-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-32-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-31-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-30-0x0000000140000000-0x0000000140386000-memory.dmp

memory/2916-132-0x0000000000790000-0x0000000000797000-memory.dmp

memory/1196-29-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-28-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-27-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-25-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-24-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-23-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-22-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-21-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-20-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-18-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-17-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-16-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-15-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-14-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-13-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-12-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-10-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-9-0x0000000140000000-0x0000000140386000-memory.dmp

memory/1196-7-0x0000000140000000-0x0000000140386000-memory.dmp

memory/2676-156-0x0000000000330000-0x0000000000337000-memory.dmp

memory/1196-187-0x0000000076EB6000-0x0000000076EB7000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-30 21:30

Reported

2024-01-04 11:45

Platform

win10v2004-20231215-en

Max time kernel

1s

Max time network

135s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1d0dfe8cb5ce6985affa09212965265b.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\1d0dfe8cb5ce6985affa09212965265b.dll,#1

C:\Windows\system32\rdpshell.exe

C:\Windows\system32\rdpshell.exe

C:\Windows\system32\CloudNotifications.exe

C:\Windows\system32\CloudNotifications.exe

C:\Windows\system32\wermgr.exe

C:\Windows\system32\wermgr.exe

C:\Users\Admin\AppData\Local\a7l8wG\wermgr.exe

C:\Users\Admin\AppData\Local\a7l8wG\wermgr.exe

C:\Users\Admin\AppData\Local\0lz0vNn\CloudNotifications.exe

C:\Users\Admin\AppData\Local\0lz0vNn\CloudNotifications.exe

C:\Users\Admin\AppData\Local\i3czzLcn\rdpshell.exe

C:\Users\Admin\AppData\Local\i3czzLcn\rdpshell.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 5.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 www.microsoft.com udp
US 92.123.241.137:80 www.microsoft.com tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 137.241.123.92.in-addr.arpa udp
US 92.123.241.137:80 www.microsoft.com tcp
US 8.8.8.8:53 195.233.44.23.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 211.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 50.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 196.178.17.96.in-addr.arpa udp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp

Files

memory/3224-1-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3224-0-0x000001B22ABE0000-0x000001B22ABE7000-memory.dmp

memory/3560-4-0x0000000002EB0000-0x0000000002EB1000-memory.dmp

memory/3560-12-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-11-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-14-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-17-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-20-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-23-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-27-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-31-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-34-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-37-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-40-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-43-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-44-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-42-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-46-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-48-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-51-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-54-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-57-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-60-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-64-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-65-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-63-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-62-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-72-0x0000000002E60000-0x0000000002E67000-memory.dmp

memory/3560-61-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-80-0x00007FFBEC400000-0x00007FFBEC410000-memory.dmp

memory/3560-59-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-58-0x0000000140000000-0x0000000140386000-memory.dmp

memory/4136-102-0x00000276EC400000-0x00000276EC407000-memory.dmp

memory/2952-119-0x000001DD7D440000-0x000001DD7D447000-memory.dmp

memory/872-134-0x000001D52FAC0000-0x000001D52FAC7000-memory.dmp

memory/3560-56-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-55-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-53-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-52-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-50-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-49-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-47-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-45-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-41-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-39-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-38-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-36-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-35-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-33-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-32-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-29-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-30-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-28-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-26-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-25-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-24-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-22-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-21-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-19-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-18-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-16-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-15-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-13-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-10-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-9-0x00007FFBEB9FA000-0x00007FFBEB9FB000-memory.dmp

memory/3224-7-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-6-0x0000000140000000-0x0000000140386000-memory.dmp

memory/3560-8-0x0000000140000000-0x0000000140386000-memory.dmp