Malware Analysis Report

2025-01-18 21:12

Sample ID 240325-bpwx9seh9y
Target dce418538293d2c87f78304af5ed1dcb
SHA256 dc7ff4f30e2e8614cdbdf71dcdc57bd7317636cf58a609b9a372ea9e397c3e04
Tags
adware evasion spyware stealer
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

dc7ff4f30e2e8614cdbdf71dcdc57bd7317636cf58a609b9a372ea9e397c3e04

Threat Level: Known bad

The file dce418538293d2c87f78304af5ed1dcb was found to be: Known bad.

Malicious Activity Summary

adware evasion spyware stealer

Modifies firewall policy service

Reads user/profile data of web browsers

Deletes itself

Checks computer location settings

Installs/modifies Browser Helper Object

Drops file in System32 directory

Enumerates physical storage devices

Unsigned PE

Modifies registry class

Modifies Internet Explorer settings

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-25 01:19

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-25 01:19

Reported

2024-03-25 01:22

Platform

win7-20240221-en

Max time kernel

117s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe"

Signatures

Modifies firewall policy service

evasion
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Program Files\Internet Explorer\IEXPLORE.EXE = "C:\\Program Files\\Internet Explorer\\IEXPLORE.EXE:*:Enabled:Internet Explorer" C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Reads user/profile data of web browsers

spyware stealer

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8} C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\msrdo20x24.dll C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A

Enumerates physical storage devices

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes" C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8}\InprocServer32 C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8}\InprocServer32\ = "C:\\Windows\\SysWow64\\\\msrdo20x24.dll" C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8}\InprocServer32\Apartment = "ThreadingModel" C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8} C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8} C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe

"C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /C msconfig.bat

Network

N/A

Files

memory/1996-0-0x0000000000400000-0x0000000000416000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\msconfig.bat

MD5 1dcd29b406211dff03df3a3c123b0261
SHA1 45aab8cc9d669b1e2e275838759b58a4185dbfaa
SHA256 f1bfbd6549e4fc448d2feee81857eaeb7f6edf2bbf401e39ab62c1d183e1efb8
SHA512 57212bf19f63c77ef0c0d7bfa32fbe6edd575f8d3e16f53ffa279c3777df59f62e8521e8d426568c01fda916b6f0bbaf98e2348a34733883b69d09062a6392ed

memory/1996-4-0x0000000000400000-0x0000000000416000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-25 01:19

Reported

2024-03-25 01:22

Platform

win10v2004-20240226-en

Max time kernel

151s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe"

Signatures

Modifies firewall policy service

evasion
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Program Files\Internet Explorer\IEXPLORE.EXE = "C:\\Program Files\\Internet Explorer\\IEXPLORE.EXE:*:Enabled:Internet Explorer" C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A

Reads user/profile data of web browsers

spyware stealer

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8} C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\msrdo20x24.dll C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A

Enumerates physical storage devices

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes" C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8} C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8}\InprocServer32 C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8}\InprocServer32\ = "C:\\Windows\\SysWow64\\\\msrdo20x24.dll" C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8}\InprocServer32\Apartment = "ThreadingModel" C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8} C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe

"C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /C msconfig.bat

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 185.13.222.173.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 178.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 90.135.221.88.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
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 26.73.42.20.in-addr.arpa udp

Files

memory/4796-0-0x0000000000400000-0x0000000000416000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\msconfig.bat

MD5 1dcd29b406211dff03df3a3c123b0261
SHA1 45aab8cc9d669b1e2e275838759b58a4185dbfaa
SHA256 f1bfbd6549e4fc448d2feee81857eaeb7f6edf2bbf401e39ab62c1d183e1efb8
SHA512 57212bf19f63c77ef0c0d7bfa32fbe6edd575f8d3e16f53ffa279c3777df59f62e8521e8d426568c01fda916b6f0bbaf98e2348a34733883b69d09062a6392ed