Malware Analysis Report

2024-10-19 02:12

Sample ID 220830-b7agzsaadr
Target 4f6e83875bb61b2d794fa100b43e87bf06c012799409d892becb09def3b4d6e6
SHA256 4f6e83875bb61b2d794fa100b43e87bf06c012799409d892becb09def3b4d6e6
Tags
upx ytstealer spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

4f6e83875bb61b2d794fa100b43e87bf06c012799409d892becb09def3b4d6e6

Threat Level: Known bad

The file 4f6e83875bb61b2d794fa100b43e87bf06c012799409d892becb09def3b4d6e6 was found to be: Known bad.

Malicious Activity Summary

upx ytstealer spyware stealer

YTStealer

YTStealer payload

UPX packed file

Reads user/profile data of web browsers

Deletes itself

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-08-30 01:46

Signatures

UPX packed file

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

Analysis: behavioral1

Detonation Overview

Submitted

2022-08-30 01:46

Reported

2022-08-30 01:51

Platform

win7-20220812-en

Max time kernel

39s

Max time network

47s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4f6e83875bb61b2d794fa100b43e87bf06c012799409d892becb09def3b4d6e6.exe"

Signatures

YTStealer

stealer ytstealer

YTStealer payload

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

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\system32\cmd.exe N/A

Reads user/profile data of web browsers

spyware stealer

Processes

C:\Users\Admin\AppData\Local\Temp\4f6e83875bb61b2d794fa100b43e87bf06c012799409d892becb09def3b4d6e6.exe

"C:\Users\Admin\AppData\Local\Temp\4f6e83875bb61b2d794fa100b43e87bf06c012799409d892becb09def3b4d6e6.exe"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\Users\Admin\AppData\Local\Temp\4f6e83875bb61b2d794fa100b43e87bf06c012799409d892becb09def3b4d6e6.exe

C:\Windows\system32\choice.exe

choice /C Y /N /D Y /T 0

Network

N/A

Files

memory/1184-54-0x0000000000220000-0x0000000000FF9000-memory.dmp

memory/648-55-0x0000000000000000-mapping.dmp

memory/1184-56-0x0000000000220000-0x0000000000FF9000-memory.dmp

memory/580-57-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-08-30 01:46

Reported

2022-08-30 01:51

Platform

win10-20220812-en

Max time kernel

55s

Max time network

182s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4f6e83875bb61b2d794fa100b43e87bf06c012799409d892becb09def3b4d6e6.exe"

Signatures

YTStealer

stealer ytstealer

YTStealer payload

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

Reads user/profile data of web browsers

spyware stealer

Processes

C:\Users\Admin\AppData\Local\Temp\4f6e83875bb61b2d794fa100b43e87bf06c012799409d892becb09def3b4d6e6.exe

"C:\Users\Admin\AppData\Local\Temp\4f6e83875bb61b2d794fa100b43e87bf06c012799409d892becb09def3b4d6e6.exe"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\Users\Admin\AppData\Local\Temp\4f6e83875bb61b2d794fa100b43e87bf06c012799409d892becb09def3b4d6e6.exe

C:\Windows\system32\choice.exe

choice /C Y /N /D Y /T 0

Network

Country Destination Domain Proto
US 20.189.173.7:443 tcp
US 93.184.221.240:80 tcp

Files

memory/1676-120-0x0000000000EE0000-0x0000000001CB9000-memory.dmp

memory/4376-121-0x0000000000000000-mapping.dmp

memory/2880-122-0x0000000000000000-mapping.dmp

memory/1676-123-0x0000000000EE0000-0x0000000001CB9000-memory.dmp