Malware Analysis Report

2024-11-30 21:29

Sample ID 231231-bznpmseffp
Target 22fcf9040c27944c1d46cdcd9998ea24
SHA256 d0716107ad0161ef0ad0627f82753053e722ed2ecff1498cad509ce16459069d
Tags
dridex botnet payload evasion persistence trojan
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

d0716107ad0161ef0ad0627f82753053e722ed2ecff1498cad509ce16459069d

Threat Level: Known bad

The file 22fcf9040c27944c1d46cdcd9998ea24 was found to be: Known bad.

Malicious Activity Summary

dridex botnet payload evasion 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

Uses Task Scheduler COM API

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-31 01:35

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-31 01:35

Reported

2024-01-01 18:55

Platform

win10v2004-20231222-en

Max time kernel

3s

Max time network

138s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\22fcf9040c27944c1d46cdcd9998ea24.dll

Signatures

Dridex

botnet dridex

Dridex Shellcode

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\system32\regsvr32.exe N/A
N/A N/A C:\Windows\system32\regsvr32.exe N/A
N/A N/A C:\Windows\system32\regsvr32.exe N/A
N/A N/A C:\Windows\system32\regsvr32.exe N/A

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\22fcf9040c27944c1d46cdcd9998ea24.dll

C:\Windows\system32\sethc.exe

C:\Windows\system32\sethc.exe

C:\Users\Admin\AppData\Local\mFeIKTMYB\ProximityUxHost.exe

C:\Users\Admin\AppData\Local\mFeIKTMYB\ProximityUxHost.exe

C:\Windows\system32\ProximityUxHost.exe

C:\Windows\system32\ProximityUxHost.exe

C:\Users\Admin\AppData\Local\Fl8m\cmstp.exe

C:\Users\Admin\AppData\Local\Fl8m\cmstp.exe

C:\Windows\system32\cmstp.exe

C:\Windows\system32\cmstp.exe

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 23.177.190.20.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 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 167.109.18.2.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 186.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 100.5.17.2.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 206.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 202.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 11.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp

Files

memory/3924-0-0x0000000000A70000-0x0000000000A77000-memory.dmp

memory/3924-1-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3924-7-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-14-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-20-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-25-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-30-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-31-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-32-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-34-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-38-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-43-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-46-0x0000000001210000-0x0000000001217000-memory.dmp

memory/3528-45-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-53-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-65-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-63-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-54-0x00007FF95A700000-0x00007FF95A710000-memory.dmp

memory/3528-44-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-42-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-41-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1060-74-0x0000000140000000-0x000000014024F000-memory.dmp

memory/1060-80-0x0000000140000000-0x000000014024F000-memory.dmp

memory/1060-76-0x00000243A6230000-0x00000243A6237000-memory.dmp

memory/1524-94-0x00000210B0C40000-0x00000210B0C47000-memory.dmp

memory/1524-92-0x0000000140000000-0x000000014020A000-memory.dmp

memory/1524-98-0x0000000140000000-0x000000014020A000-memory.dmp

memory/4492-112-0x0000021D6B790000-0x0000021D6B797000-memory.dmp

memory/3528-40-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-39-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-37-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-36-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-35-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-33-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-29-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-28-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-27-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-26-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-24-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-23-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-22-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-21-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-19-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-18-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-17-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-16-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-15-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-13-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-12-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-11-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-10-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-9-0x00007FF95885A000-0x00007FF95885B000-memory.dmp

memory/3528-8-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-6-0x0000000140000000-0x0000000140209000-memory.dmp

memory/3528-4-0x0000000003140000-0x0000000003141000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-31 01:35

Reported

2024-01-01 18:56

Platform

win7-20231215-en

Max time kernel

150s

Max time network

118s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\22fcf9040c27944c1d46cdcd9998ea24.dll

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\eS7l7B\xpsrchvw.exe N/A
N/A N/A N/A N/A
N/A N/A C:\Users\Admin\AppData\Local\3boEIrq\rdpshell.exe N/A
N/A N/A N/A N/A
N/A N/A C:\Users\Admin\AppData\Local\tvnSWOju\icardagt.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-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rtxtioiynm = "C:\\Users\\Admin\\AppData\\Roaming\\Identities\\fX7yEAUkx\\rdpshell.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\eS7l7B\xpsrchvw.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\3boEIrq\rdpshell.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\tvnSWOju\icardagt.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\system32\regsvr32.exe N/A
N/A N/A C:\Windows\system32\regsvr32.exe N/A
N/A N/A C:\Windows\system32\regsvr32.exe N/A
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Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1200 wrote to memory of 2600 N/A N/A C:\Windows\system32\xpsrchvw.exe
PID 1200 wrote to memory of 2600 N/A N/A C:\Windows\system32\xpsrchvw.exe
PID 1200 wrote to memory of 2600 N/A N/A C:\Windows\system32\xpsrchvw.exe
PID 1200 wrote to memory of 2644 N/A N/A C:\Users\Admin\AppData\Local\eS7l7B\xpsrchvw.exe
PID 1200 wrote to memory of 2644 N/A N/A C:\Users\Admin\AppData\Local\eS7l7B\xpsrchvw.exe
PID 1200 wrote to memory of 2644 N/A N/A C:\Users\Admin\AppData\Local\eS7l7B\xpsrchvw.exe
PID 1200 wrote to memory of 2888 N/A N/A C:\Windows\system32\rdpshell.exe
PID 1200 wrote to memory of 2888 N/A N/A C:\Windows\system32\rdpshell.exe
PID 1200 wrote to memory of 2888 N/A N/A C:\Windows\system32\rdpshell.exe
PID 1200 wrote to memory of 2892 N/A N/A C:\Users\Admin\AppData\Local\3boEIrq\rdpshell.exe
PID 1200 wrote to memory of 2892 N/A N/A C:\Users\Admin\AppData\Local\3boEIrq\rdpshell.exe
PID 1200 wrote to memory of 2892 N/A N/A C:\Users\Admin\AppData\Local\3boEIrq\rdpshell.exe
PID 1200 wrote to memory of 332 N/A N/A C:\Windows\system32\icardagt.exe
PID 1200 wrote to memory of 332 N/A N/A C:\Windows\system32\icardagt.exe
PID 1200 wrote to memory of 332 N/A N/A C:\Windows\system32\icardagt.exe
PID 1200 wrote to memory of 1648 N/A N/A C:\Users\Admin\AppData\Local\tvnSWOju\icardagt.exe
PID 1200 wrote to memory of 1648 N/A N/A C:\Users\Admin\AppData\Local\tvnSWOju\icardagt.exe
PID 1200 wrote to memory of 1648 N/A N/A C:\Users\Admin\AppData\Local\tvnSWOju\icardagt.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\22fcf9040c27944c1d46cdcd9998ea24.dll

C:\Windows\system32\xpsrchvw.exe

C:\Windows\system32\xpsrchvw.exe

C:\Users\Admin\AppData\Local\eS7l7B\xpsrchvw.exe

C:\Users\Admin\AppData\Local\eS7l7B\xpsrchvw.exe

C:\Windows\system32\rdpshell.exe

C:\Windows\system32\rdpshell.exe

C:\Users\Admin\AppData\Local\3boEIrq\rdpshell.exe

C:\Users\Admin\AppData\Local\3boEIrq\rdpshell.exe

C:\Users\Admin\AppData\Local\tvnSWOju\icardagt.exe

C:\Users\Admin\AppData\Local\tvnSWOju\icardagt.exe

C:\Windows\system32\icardagt.exe

C:\Windows\system32\icardagt.exe

Network

N/A

Files

memory/2108-0-0x0000000140000000-0x0000000140209000-memory.dmp

memory/2108-1-0x00000000001A0000-0x00000000001A7000-memory.dmp

memory/1200-4-0x0000000077756000-0x0000000077757000-memory.dmp

memory/1200-5-0x0000000003A20000-0x0000000003A21000-memory.dmp

memory/2108-8-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-15-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-28-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-37-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-44-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-46-0x0000000003050000-0x0000000003057000-memory.dmp

memory/1200-55-0x0000000077AC0000-0x0000000077AC2000-memory.dmp

memory/1200-54-0x0000000077961000-0x0000000077962000-memory.dmp

memory/1200-64-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-53-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-45-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-43-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-70-0x0000000140000000-0x0000000140209000-memory.dmp

memory/2644-84-0x0000000000280000-0x0000000000287000-memory.dmp

memory/2644-82-0x0000000140000000-0x000000014020B000-memory.dmp

memory/1200-74-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-42-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-41-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-40-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-39-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-38-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-36-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-35-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-34-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-33-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-32-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-31-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-30-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-29-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-27-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-26-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-25-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-24-0x0000000140000000-0x0000000140209000-memory.dmp

memory/2892-109-0x0000000001F20000-0x0000000001F27000-memory.dmp

memory/1200-23-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-22-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-21-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-20-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-19-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-18-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-17-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-16-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-14-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-13-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-12-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-11-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-9-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-10-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1200-7-0x0000000140000000-0x0000000140209000-memory.dmp

memory/1648-132-0x00000000003D0000-0x00000000003D7000-memory.dmp

memory/1200-161-0x0000000077756000-0x0000000077757000-memory.dmp