Malware Analysis Report

2025-01-22 08:16

Sample ID 241026-eyhnsazcpd
Target e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535
SHA256 e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535
Tags
upx discovery persistence spyware 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

e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535

Threat Level: Shows suspicious behavior

The file e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535 was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx discovery persistence spyware stealer

Executes dropped EXE

Loads dropped DLL

Reads user/profile data of web browsers

Adds Run key to start application

UPX packed file

Drops file in Windows directory

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-26 04:20

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-26 04:20

Reported

2024-10-26 04:23

Platform

win7-20240903-en

Max time kernel

141s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5l4Dny2Xge7CpG6.exe N/A
N/A N/A C:\Windows\CTS.exe N/A
N/A N/A N/A N/A

Reads user/profile data of web browsers

spyware stealer

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" C:\Users\Admin\AppData\Local\Temp\e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" C:\Windows\CTS.exe N/A

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
N/A N/A N/A N/A
N/A N/A N/A N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\CTS.exe C:\Windows\CTS.exe N/A
File created C:\Windows\CTS.exe C:\Users\Admin\AppData\Local\Temp\e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\CTS.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535.exe

"C:\Users\Admin\AppData\Local\Temp\e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535.exe"

C:\Users\Admin\AppData\Local\Temp\5l4Dny2Xge7CpG6.exe

C:\Users\Admin\AppData\Local\Temp\5l4Dny2Xge7CpG6.exe

C:\Windows\CTS.exe

"C:\Windows\CTS.exe"

Network

N/A

Files

memory/2288-0-0x0000000001050000-0x0000000001067000-memory.dmp

\Users\Admin\AppData\Local\Temp\5l4Dny2Xge7CpG6.exe

MD5 95c9a037d3b01a21275aa6cc73b122a2
SHA1 c19ed8afc95b91d0cc6bc075047de30eae015386
SHA256 1d5edcbae3258efb07cc57ba8d7cd1ebe2eb5106ef1a894b787ed2857952c523
SHA512 761bb76261712a597f610e3162fa1514d2f56d69d03d1b76b51c6b2a7b0c88bbd385b7dc849c6913f7d861fb3aed8551f26f640d90b621e8629abe2e4bfb6160

C:\Windows\CTS.exe

MD5 22069d1278ebf7d1758e20c4b118c39a
SHA1 cfd6c00953bc91dfa91a809e99a230b0ad222eec
SHA256 c4875ef691c5e0dbcdc5dd700f610042ec63e251f184150eeb3e7ab1dde3c9ba
SHA512 7ffbb4fce2779e7dc7ea19773a843eb174eb9e8dfc136a45ce8606c6c1657887f73409bfc780c391fe38dacc56c8a6ca4f84d3656236d631b42ec2946346b61d

memory/2288-15-0x0000000001050000-0x0000000001067000-memory.dmp

memory/2016-18-0x0000000000850000-0x0000000000867000-memory.dmp

memory/2288-16-0x0000000000070000-0x0000000000087000-memory.dmp

memory/2288-14-0x0000000000070000-0x0000000000087000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\5l4Dny2Xge7CpG6.exe

MD5 9d7ca85315c1ff444cbf2683eab0946b
SHA1 6e5a8ba182fd0a29ae4a987b1dbc74e9926c68ae
SHA256 433fd959bd580424db982d141fe25c75bbfcbce12bf843021a23a111abe45565
SHA512 3fe68e65b032b7b08349352825e9749bb62d07f74207f83e961f0759209d5f353983c2922f030624c8c53a15ce7b90ba3b1f08efedbf4c66f9ab789a732571ab

memory/2288-25-0x0000000000070000-0x0000000000087000-memory.dmp

memory/2016-26-0x0000000000850000-0x0000000000867000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-26 04:20

Reported

2024-10-26 04:23

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\oRyfYv80WIFjOWL.exe N/A
N/A N/A C:\Windows\CTS.exe N/A

Reads user/profile data of web browsers

spyware stealer

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" C:\Users\Admin\AppData\Local\Temp\e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" C:\Windows\CTS.exe N/A

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
N/A N/A N/A N/A
N/A N/A N/A N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\CTS.exe C:\Users\Admin\AppData\Local\Temp\e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535.exe N/A
File created C:\Windows\CTS.exe C:\Windows\CTS.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\CTS.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\CTS.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535.exe

"C:\Users\Admin\AppData\Local\Temp\e968b406ff8ca1bafdeab76d0493784b73f4787a819d2441ccd7b413182be535.exe"

C:\Users\Admin\AppData\Local\Temp\oRyfYv80WIFjOWL.exe

C:\Users\Admin\AppData\Local\Temp\oRyfYv80WIFjOWL.exe

C:\Windows\CTS.exe

"C:\Windows\CTS.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 udp

Files

memory/4356-0-0x0000000000A70000-0x0000000000A87000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\oRyfYv80WIFjOWL.exe

MD5 95c9a037d3b01a21275aa6cc73b122a2
SHA1 c19ed8afc95b91d0cc6bc075047de30eae015386
SHA256 1d5edcbae3258efb07cc57ba8d7cd1ebe2eb5106ef1a894b787ed2857952c523
SHA512 761bb76261712a597f610e3162fa1514d2f56d69d03d1b76b51c6b2a7b0c88bbd385b7dc849c6913f7d861fb3aed8551f26f640d90b621e8629abe2e4bfb6160

C:\Windows\CTS.exe

MD5 22069d1278ebf7d1758e20c4b118c39a
SHA1 cfd6c00953bc91dfa91a809e99a230b0ad222eec
SHA256 c4875ef691c5e0dbcdc5dd700f610042ec63e251f184150eeb3e7ab1dde3c9ba
SHA512 7ffbb4fce2779e7dc7ea19773a843eb174eb9e8dfc136a45ce8606c6c1657887f73409bfc780c391fe38dacc56c8a6ca4f84d3656236d631b42ec2946346b61d

memory/1404-7-0x0000000000DB0000-0x0000000000DC7000-memory.dmp

memory/4356-9-0x0000000000A70000-0x0000000000A87000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

MD5 7583ae276a3ffd5a3f11de985a0bcbb5
SHA1 59391be476bd2fc979df7fcb71f59b4f68b37a6c
SHA256 04e4c366ce0611b7d593c4251f755a7ae4e33bb6f085affa40af31de5f9c47b4
SHA512 9b2548d293e857098dc58065e03b90462595fad44d77bf3d6ed512cebbbde6d275ac3f7a8992f5b3fe8402fadf7d17bf63ea1de0564caba145be4f10f29a1f12

memory/1404-32-0x0000000000DB0000-0x0000000000DC7000-memory.dmp