Malware Analysis Report

2024-11-15 06:14

Sample ID 240604-as5txafe66
Target f75cfc672dac408eece759f01a62fa34efac90634c20a593c00f526f40e9cf1c
SHA256 f75cfc672dac408eece759f01a62fa34efac90634c20a593c00f526f40e9cf1c
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

f75cfc672dac408eece759f01a62fa34efac90634c20a593c00f526f40e9cf1c

Threat Level: Shows suspicious behavior

The file f75cfc672dac408eece759f01a62fa34efac90634c20a593c00f526f40e9cf1c was found to be: Shows suspicious behavior.

Malicious Activity Summary

persistence spyware stealer

Executes dropped EXE

Reads user/profile data of web browsers

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

2024-06-04 00:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-04 00:29

Reported

2024-06-04 00:32

Platform

win7-20240508-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f75cfc672dac408eece759f01a62fa34efac90634c20a593c00f526f40e9cf1c.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\f75cfc672dac408eece759f01a62fa34efac90634c20a593c00f526f40e9cf1c.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\f75cfc672dac408eece759f01a62fa34efac90634c20a593c00f526f40e9cf1c.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\f75cfc672dac408eece759f01a62fa34efac90634c20a593c00f526f40e9cf1c.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\svhost.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f75cfc672dac408eece759f01a62fa34efac90634c20a593c00f526f40e9cf1c.exe

"C:\Users\Admin\AppData\Local\Temp\f75cfc672dac408eece759f01a62fa34efac90634c20a593c00f526f40e9cf1c.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\G3EmD4WuXt4Cj97.exe

MD5 37e40d3e5aae5565aba080993cddcc43
SHA1 4763a701e63e60b1ee3b839cf6f5c43f3feb1408
SHA256 55ded13a711e6efeaf9ed95c82879300a134106441b0098598131609deab4c23
SHA512 4ee97af2beccc663f7fd23932b3197c42c9b899f830de2ac9833e0267b65525148e6d4b78de066bc13e6a5d3c98f819eb163736a037462b6b8566b059ba6af4b

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-04 00:29

Reported

2024-06-04 00:32

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f75cfc672dac408eece759f01a62fa34efac90634c20a593c00f526f40e9cf1c.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\f75cfc672dac408eece759f01a62fa34efac90634c20a593c00f526f40e9cf1c.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\f75cfc672dac408eece759f01a62fa34efac90634c20a593c00f526f40e9cf1c.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\f75cfc672dac408eece759f01a62fa34efac90634c20a593c00f526f40e9cf1c.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\svhost.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f75cfc672dac408eece759f01a62fa34efac90634c20a593c00f526f40e9cf1c.exe

"C:\Users\Admin\AppData\Local\Temp\f75cfc672dac408eece759f01a62fa34efac90634c20a593c00f526f40e9cf1c.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 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 52.111.229.43:443 tcp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 8.173.189.20.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 7191cba6eb87568449ab4c4d4db2b337
SHA1 0798d8d93b341db6b142002ebdac314cdac41868
SHA256 4384f4de6df0b00aec02f7d2d89baf8aa786499b71ef5a66dfce6d3865af6239
SHA512 cca54d549a8ec1828f465a534a92f45446f0cf4ca59bbd6d2f8cacc0622f9c1b3a4475eccf3deb77f6205d21bc42e6e686b6fffeb8abba051454ee4e6a04db25

C:\Users\Admin\AppData\Local\Temp\3lKWvKf4j0bnizW.exe

MD5 bd878418fb5b66c2e0d1dd3e415839b8
SHA1 536e6b3ee34785ffeeb9337bbe471c6f427df085
SHA256 22faf90036e54083f1094598f100eb0499d9b8f477c2a22c0066a414f201f178
SHA512 1a13ce620cdc37152bd3a58de36ce03ac4eda4535f91870251a4069ff8301efa9210ef8a78fffae616af27276ac72db57e52995c7ba87e62eef42ace80fa8dcb