Malware Analysis Report

2025-01-18 21:12

Sample ID 240325-gcy5racb8z
Target dd5e67d361f44d48c23605fcf9df6e83
SHA256 79f4f4b21168d2a6d9809274457c9cee776f0526afc6262a9fbbdb6b3c4cd854
Tags
upx adware stealer
score
7/10

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
7/10

SHA256

79f4f4b21168d2a6d9809274457c9cee776f0526afc6262a9fbbdb6b3c4cd854

Threat Level: Shows suspicious behavior

The file dd5e67d361f44d48c23605fcf9df6e83 was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx adware stealer

UPX packed file

Enumerates connected drives

Installs/modifies Browser Helper Object

Drops autorun.inf file

Drops file in Program Files directory

Unsigned PE

Modifies registry class

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-25 05:40

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-25 05:40

Reported

2024-03-25 05:42

Platform

win7-20240215-en

Max time kernel

121s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe"

Signatures

UPX packed file

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

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\E: C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A
File opened (read-only) \??\E: C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{9963387B-212E-4643-B207-82DAEA0E713D} C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A

Drops autorun.inf file

Description Indicator Process Target
File created \??\E:\AutoRun.Inf C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A
File created \??\E:\AutoRun.Inf C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Internet Explorer\PLUGINS\Sy_Win7k.Jmp C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A
File created C:\Program Files\Internet Explorer\PLUGINS\Sy_Win7k.Jmp C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A
File created C:\Program Files\Internet Explorer\PLUGINS\Wn_Sys8x.Sys C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9963387B-212E-4643-B207-82DAEA0E713D} C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9963387B-212E-4643-B207-82DAEA0E713D}\ C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9963387B-212E-4643-B207-82DAEA0E713D}\InProcServer32 C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9963387B-212E-4643-B207-82DAEA0E713D}\InProcServer32\ = "C:\\Program Files\\Internet Explorer\\PLUGINS\\Wn_Sys8x.Sys" C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9963387B-212E-4643-B207-82DAEA0E713D}\InProcServer32\ThreadingModel = "Apartment" C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe

"C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe"

C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe

"C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe" Z

Network

N/A

Files

memory/2404-0-0x0000000000400000-0x000000000041B000-memory.dmp

memory/2404-1-0x0000000000400000-0x000000000041B000-memory.dmp

memory/2420-2-0x0000000000400000-0x000000000041B000-memory.dmp

memory/2420-3-0x0000000000400000-0x000000000041B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-25 05:40

Reported

2024-03-25 05:42

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe"

Signatures

UPX packed file

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

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\E: C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A
File opened (read-only) \??\E: C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{9963387B-212E-4643-B207-82DAEA0E713D} C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A

Drops autorun.inf file

Description Indicator Process Target
File created \??\E:\AutoRun.Inf C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A
File created \??\E:\AutoRun.Inf C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Internet Explorer\PLUGINS\Sy_Win7k.Jmp C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A
File created C:\Program Files\Internet Explorer\PLUGINS\Wn_Sys8x.Sys C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A
File created C:\Program Files\Internet Explorer\PLUGINS\Sy_Win7k.Jmp C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9963387B-212E-4643-B207-82DAEA0E713D}\InProcServer32\ThreadingModel = "Apartment" C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9963387B-212E-4643-B207-82DAEA0E713D} C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9963387B-212E-4643-B207-82DAEA0E713D}\ C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9963387B-212E-4643-B207-82DAEA0E713D}\InProcServer32 C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9963387B-212E-4643-B207-82DAEA0E713D}\InProcServer32\ = "C:\\Program Files\\Internet Explorer\\PLUGINS\\Wn_Sys8x.Sys" C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe

"C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe"

C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe

"C:\Users\Admin\AppData\Local\Temp\dd5e67d361f44d48c23605fcf9df6e83.exe" Z

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com 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 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.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 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 211.135.221.88.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
GB 96.17.178.176:80 tcp

Files

memory/4736-0-0x0000000000400000-0x000000000041B000-memory.dmp

memory/4736-1-0x0000000000400000-0x000000000041B000-memory.dmp

memory/2180-2-0x0000000000400000-0x000000000041B000-memory.dmp

memory/2180-3-0x0000000000400000-0x000000000041B000-memory.dmp