Malware Analysis Report

2024-11-30 06:52

Sample ID 240601-jbn99seg74
Target 37d250ba728676b581907fcc717a809f762c3398e01714eb0a176076a72e06b6
SHA256 37d250ba728676b581907fcc717a809f762c3398e01714eb0a176076a72e06b6
Tags
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

37d250ba728676b581907fcc717a809f762c3398e01714eb0a176076a72e06b6

Threat Level: Shows suspicious behavior

The file 37d250ba728676b581907fcc717a809f762c3398e01714eb0a176076a72e06b6 was found to be: Shows suspicious behavior.

Malicious Activity Summary

persistence spyware stealer

Reads user/profile data of web browsers

Executes dropped EXE

Adds Run key to start application

Drops file in Windows directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-01 07:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-01 07:29

Reported

2024-06-01 07:32

Platform

win7-20240221-en

Max time kernel

121s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\37d250ba728676b581907fcc717a809f762c3398e01714eb0a176076a72e06b6.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\svhost.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\Winhost = "C:\\Windows\\svhost.exe" C:\Users\Admin\AppData\Local\Temp\37d250ba728676b581907fcc717a809f762c3398e01714eb0a176076a72e06b6.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Winhost = "C:\\Windows\\svhost.exe" C:\Windows\svhost.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\svhost.exe C:\Users\Admin\AppData\Local\Temp\37d250ba728676b581907fcc717a809f762c3398e01714eb0a176076a72e06b6.exe N/A
File created C:\Windows\svhost.exe C:\Windows\svhost.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\37d250ba728676b581907fcc717a809f762c3398e01714eb0a176076a72e06b6.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\svhost.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\37d250ba728676b581907fcc717a809f762c3398e01714eb0a176076a72e06b6.exe

"C:\Users\Admin\AppData\Local\Temp\37d250ba728676b581907fcc717a809f762c3398e01714eb0a176076a72e06b6.exe"

C:\Windows\svhost.exe

"C:\Windows\svhost.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 app.csvhost.info udp

Files

C:\Windows\svhost.exe

MD5 76fd02b48297edb28940bdfa3fa1c48a
SHA1 bf5cae1057a0aca8bf3aab8b121fe77ebb0788ce
SHA256 07abd35f09b954eba7011ce18b225017c50168e039732680df58ae703324825c
SHA512 28c7bf4785547f6df9d678699a55cfb24c429a2bac5375733ff2f760c92933190517d8acd740bdf69c3ecc799635279af5d7ebd848c5b471318d1f330c441ff0

C:\Users\Admin\AppData\Local\Temp\XiM1gXHOFxaqDQL.exe

MD5 8270e948fd7ce74dd5f63c0de7129d8c
SHA1 e414fcfe5b678b924d6eb1565d380667901989a6
SHA256 c0a56927e60bb231ca63c56665434b8bfa842d3a7f11e43cb15a526b2d8b63b1
SHA512 d2006ca903219d6dd0326284ad0f05e0c76d0fe02a4ebf64ac263471e6ba84ec068a63e71ee396acd98d7cda5f46e1b2c163d63fceb3461320a3659637224c4c

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-01 07:29

Reported

2024-06-01 07:32

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\37d250ba728676b581907fcc717a809f762c3398e01714eb0a176076a72e06b6.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\svhost.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\Winhost = "C:\\Windows\\svhost.exe" C:\Users\Admin\AppData\Local\Temp\37d250ba728676b581907fcc717a809f762c3398e01714eb0a176076a72e06b6.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Winhost = "C:\\Windows\\svhost.exe" C:\Windows\svhost.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\svhost.exe C:\Users\Admin\AppData\Local\Temp\37d250ba728676b581907fcc717a809f762c3398e01714eb0a176076a72e06b6.exe N/A
File created C:\Windows\svhost.exe C:\Windows\svhost.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\37d250ba728676b581907fcc717a809f762c3398e01714eb0a176076a72e06b6.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\svhost.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\37d250ba728676b581907fcc717a809f762c3398e01714eb0a176076a72e06b6.exe

"C:\Users\Admin\AppData\Local\Temp\37d250ba728676b581907fcc717a809f762c3398e01714eb0a176076a72e06b6.exe"

C:\Windows\svhost.exe

"C:\Windows\svhost.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 app.csvhost.info udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 129.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 72.239.69.13.in-addr.arpa udp

Files

C:\Windows\svhost.exe

MD5 76fd02b48297edb28940bdfa3fa1c48a
SHA1 bf5cae1057a0aca8bf3aab8b121fe77ebb0788ce
SHA256 07abd35f09b954eba7011ce18b225017c50168e039732680df58ae703324825c
SHA512 28c7bf4785547f6df9d678699a55cfb24c429a2bac5375733ff2f760c92933190517d8acd740bdf69c3ecc799635279af5d7ebd848c5b471318d1f330c441ff0

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

MD5 1f3f0d9a2c672d0b25d679e344b4475f
SHA1 81586551312953877bc7fe6a40fca101fe4bdc74
SHA256 5eb2d9f3b30a6f657eb8f8826a67567a4bd23cd4cc6ed07eb9479811a80c19c9
SHA512 74c4b4fb6ca126db4ecbc1acf28949847243755ed482bb3da72fef4852265634c83b0568cba9e1016c3e07321b92daa45bfcce1e65818fee0ff3a54f291082fb

C:\Users\Admin\AppData\Local\Temp\nKx9aA62izOgDBM.exe

MD5 d7ffcac494fa636a0c358eb2efdc23d4
SHA1 ff3b227edffd6e16848b93c82538b63bfc85213d
SHA256 add808e1cf908ebbcbe4f05507b959fe4ef2350b6368830cf779df7b098ffc16
SHA512 509d52b036b6df7782cfeb1aa68d3e7c7b90daf7d67037c696544bafb71753ee5dca02a1e5459764ef25068f1ecd5f525b08253c6bbada8f83c9d10cc68616df