Malware Analysis Report

2024-11-30 21:08

Sample ID 231230-bvzaksdae7
Target 0a0e1c280657815796ae1a6bc531b5ae
SHA256 d26a361401ebe89184426da768ffe65a228680fa72a13e9c29be2c6b40582f17
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

d26a361401ebe89184426da768ffe65a228680fa72a13e9c29be2c6b40582f17

Threat Level: Known bad

The file 0a0e1c280657815796ae1a6bc531b5ae was found to be: Known bad.

Malicious Activity Summary

dridex botnet evasion payload persistence trojan

Dridex

Dridex Shellcode

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Checks whether UAC is enabled

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-30 01:28

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-30 01:28

Reported

2023-12-31 03:55

Platform

win7-20231129-en

Max time kernel

149s

Max time network

120s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0a0e1c280657815796ae1a6bc531b5ae.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\EULk\lpksetup.exe N/A
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N/A N/A C:\Users\Admin\AppData\Local\0k69aSAi\tcmsetup.exe N/A
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N/A N/A C:\Users\Admin\AppData\Local\2wt\OptionalFeatures.exe N/A
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Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\Groztcac = "C:\\Users\\Admin\\AppData\\Roaming\\Adobe\\Acrobat\\kI2Wh6G\\tcmsetup.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\EULk\lpksetup.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\0k69aSAi\tcmsetup.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\2wt\OptionalFeatures.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 1372 wrote to memory of 2188 N/A N/A C:\Windows\system32\lpksetup.exe
PID 1372 wrote to memory of 2188 N/A N/A C:\Windows\system32\lpksetup.exe
PID 1372 wrote to memory of 2188 N/A N/A C:\Windows\system32\lpksetup.exe
PID 1372 wrote to memory of 2436 N/A N/A C:\Users\Admin\AppData\Local\EULk\lpksetup.exe
PID 1372 wrote to memory of 2436 N/A N/A C:\Users\Admin\AppData\Local\EULk\lpksetup.exe
PID 1372 wrote to memory of 2436 N/A N/A C:\Users\Admin\AppData\Local\EULk\lpksetup.exe
PID 1372 wrote to memory of 1192 N/A N/A C:\Windows\system32\tcmsetup.exe
PID 1372 wrote to memory of 1192 N/A N/A C:\Windows\system32\tcmsetup.exe
PID 1372 wrote to memory of 1192 N/A N/A C:\Windows\system32\tcmsetup.exe
PID 1372 wrote to memory of 2024 N/A N/A C:\Users\Admin\AppData\Local\0k69aSAi\tcmsetup.exe
PID 1372 wrote to memory of 2024 N/A N/A C:\Users\Admin\AppData\Local\0k69aSAi\tcmsetup.exe
PID 1372 wrote to memory of 2024 N/A N/A C:\Users\Admin\AppData\Local\0k69aSAi\tcmsetup.exe
PID 1372 wrote to memory of 2040 N/A N/A C:\Windows\system32\OptionalFeatures.exe
PID 1372 wrote to memory of 2040 N/A N/A C:\Windows\system32\OptionalFeatures.exe
PID 1372 wrote to memory of 2040 N/A N/A C:\Windows\system32\OptionalFeatures.exe
PID 1372 wrote to memory of 2012 N/A N/A C:\Users\Admin\AppData\Local\2wt\OptionalFeatures.exe
PID 1372 wrote to memory of 2012 N/A N/A C:\Users\Admin\AppData\Local\2wt\OptionalFeatures.exe
PID 1372 wrote to memory of 2012 N/A N/A C:\Users\Admin\AppData\Local\2wt\OptionalFeatures.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0a0e1c280657815796ae1a6bc531b5ae.dll,#1

C:\Users\Admin\AppData\Local\EULk\lpksetup.exe

C:\Users\Admin\AppData\Local\EULk\lpksetup.exe

C:\Windows\system32\lpksetup.exe

C:\Windows\system32\lpksetup.exe

C:\Users\Admin\AppData\Local\0k69aSAi\tcmsetup.exe

C:\Users\Admin\AppData\Local\0k69aSAi\tcmsetup.exe

C:\Windows\system32\tcmsetup.exe

C:\Windows\system32\tcmsetup.exe

C:\Windows\system32\OptionalFeatures.exe

C:\Windows\system32\OptionalFeatures.exe

C:\Users\Admin\AppData\Local\2wt\OptionalFeatures.exe

C:\Users\Admin\AppData\Local\2wt\OptionalFeatures.exe

Network

N/A

Files

memory/2960-1-0x0000000140000000-0x0000000140217000-memory.dmp

memory/2960-0-0x0000000000190000-0x0000000000197000-memory.dmp

memory/1372-4-0x0000000077AD6000-0x0000000077AD7000-memory.dmp

memory/1372-13-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-25-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-36-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-38-0x0000000003BC0000-0x0000000003BC7000-memory.dmp

memory/1372-46-0x0000000077BE1000-0x0000000077BE2000-memory.dmp

memory/1372-50-0x0000000077D40000-0x0000000077D42000-memory.dmp

memory/1372-56-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-45-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-37-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-35-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-34-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-33-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-32-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-31-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-30-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-29-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-28-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-27-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-26-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-24-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-23-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-22-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-21-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-20-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-19-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-18-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-17-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-16-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-15-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-14-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-12-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-11-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-10-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-9-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-8-0x0000000140000000-0x0000000140217000-memory.dmp

memory/2960-7-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-5-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

memory/1372-61-0x0000000140000000-0x0000000140217000-memory.dmp

memory/1372-62-0x0000000140000000-0x0000000140217000-memory.dmp

memory/2436-75-0x0000000140000000-0x0000000140218000-memory.dmp

memory/2436-79-0x0000000140000000-0x0000000140218000-memory.dmp

memory/2436-74-0x0000000000090000-0x0000000000097000-memory.dmp

memory/2024-98-0x0000000140000000-0x0000000140219000-memory.dmp

memory/2024-104-0x0000000140000000-0x0000000140219000-memory.dmp

memory/2024-100-0x0000000001F20000-0x0000000001F27000-memory.dmp

memory/2012-118-0x0000000000100000-0x0000000000107000-memory.dmp

memory/1372-144-0x0000000077AD6000-0x0000000077AD7000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-30 01:28

Reported

2023-12-31 03:55

Platform

win10v2004-20231222-en

Max time kernel

0s

Max time network

74s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0a0e1c280657815796ae1a6bc531b5ae.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\0a0e1c280657815796ae1a6bc531b5ae.dll,#1

C:\Windows\system32\upfc.exe

C:\Windows\system32\upfc.exe

C:\Users\Admin\AppData\Local\CKLdFmSh\rdpinput.exe

C:\Users\Admin\AppData\Local\CKLdFmSh\rdpinput.exe

C:\Windows\system32\rdpinput.exe

C:\Windows\system32\rdpinput.exe

C:\Users\Admin\AppData\Local\voU94AZ\tabcal.exe

C:\Users\Admin\AppData\Local\voU94AZ\tabcal.exe

C:\Windows\system32\tabcal.exe

C:\Windows\system32\tabcal.exe

C:\Users\Admin\AppData\Local\bXGfQ\upfc.exe

C:\Users\Admin\AppData\Local\bXGfQ\upfc.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 82.177.190.20.in-addr.arpa udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 84.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 20.242.39.171:443 tcp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
GB 88.221.135.217:80 tcp
GB 96.17.178.174:80 tcp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
NL 52.142.223.178:80 tcp

Files

memory/2904-1-0x0000029552430000-0x0000029552437000-memory.dmp

memory/2904-0-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-6-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-11-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-14-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-16-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-20-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-24-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-26-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-31-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-35-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-37-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-38-0x0000000001310000-0x0000000001317000-memory.dmp

memory/3512-46-0x00007FFFED100000-0x00007FFFED110000-memory.dmp

memory/3512-45-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-57-0x0000000140000000-0x0000000140217000-memory.dmp

memory/4420-66-0x0000000140000000-0x0000000140218000-memory.dmp

memory/4420-72-0x0000000140000000-0x0000000140218000-memory.dmp

memory/4676-85-0x0000023336A80000-0x0000023336A87000-memory.dmp

memory/4676-89-0x0000000140000000-0x0000000140218000-memory.dmp

memory/4660-101-0x0000000140000000-0x0000000140219000-memory.dmp

memory/4660-106-0x0000000140000000-0x0000000140219000-memory.dmp

memory/4660-100-0x000002914C320000-0x000002914C327000-memory.dmp

memory/4420-67-0x000002841F4B0000-0x000002841F4B7000-memory.dmp

memory/3512-55-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-36-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-34-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-33-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-32-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-30-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-29-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-28-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-27-0x0000000140000000-0x0000000140217000-memory.dmp

memory/2904-25-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-23-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-22-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-21-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-19-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-18-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-17-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-15-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-12-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-13-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-10-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-9-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-8-0x00007FFFED05A000-0x00007FFFED05B000-memory.dmp

memory/3512-7-0x0000000140000000-0x0000000140217000-memory.dmp

memory/3512-4-0x0000000002D60000-0x0000000002D61000-memory.dmp