Malware Analysis Report

2024-10-23 16:34

Sample ID 220830-b21rzshhfm
Target 3c4ae55e479c695d5aa5dc9ee43d94828d15c5704fafa94fb8123ef7a25485c8
SHA256 3c4ae55e479c695d5aa5dc9ee43d94828d15c5704fafa94fb8123ef7a25485c8
Tags
ytstealer spyware stealer upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

3c4ae55e479c695d5aa5dc9ee43d94828d15c5704fafa94fb8123ef7a25485c8

Threat Level: Known bad

The file 3c4ae55e479c695d5aa5dc9ee43d94828d15c5704fafa94fb8123ef7a25485c8 was found to be: Known bad.

Malicious Activity Summary

ytstealer spyware stealer upx

YTStealer

YTStealer payload

UPX packed file

Reads user/profile data of web browsers

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-08-30 01:39

Signatures

UPX packed file

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

Analysis: behavioral2

Detonation Overview

Submitted

2022-08-30 01:39

Reported

2022-08-30 01:44

Platform

win10-20220812-en

Max time kernel

52s

Max time network

170s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3c4ae55e479c695d5aa5dc9ee43d94828d15c5704fafa94fb8123ef7a25485c8.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

Reads user/profile data of web browsers

spyware stealer

Processes

C:\Users\Admin\AppData\Local\Temp\3c4ae55e479c695d5aa5dc9ee43d94828d15c5704fafa94fb8123ef7a25485c8.exe

"C:\Users\Admin\AppData\Local\Temp\3c4ae55e479c695d5aa5dc9ee43d94828d15c5704fafa94fb8123ef7a25485c8.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\3c4ae55e479c695d5aa5dc9ee43d94828d15c5704fafa94fb8123ef7a25485c8.exe

C:\Windows\system32\choice.exe

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

Network

Country Destination Domain Proto
US 20.42.72.131:443 tcp
US 8.238.20.254:80 tcp

Files

memory/2764-116-0x0000000000120000-0x0000000000EF9000-memory.dmp

memory/4764-117-0x0000000000000000-mapping.dmp

memory/4772-118-0x0000000000000000-mapping.dmp

memory/2764-119-0x0000000000120000-0x0000000000EF9000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2022-08-30 01:39

Reported

2022-08-30 01:44

Platform

win7-20220812-en

Max time kernel

44s

Max time network

49s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3c4ae55e479c695d5aa5dc9ee43d94828d15c5704fafa94fb8123ef7a25485c8.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

Reads user/profile data of web browsers

spyware stealer

Processes

C:\Users\Admin\AppData\Local\Temp\3c4ae55e479c695d5aa5dc9ee43d94828d15c5704fafa94fb8123ef7a25485c8.exe

"C:\Users\Admin\AppData\Local\Temp\3c4ae55e479c695d5aa5dc9ee43d94828d15c5704fafa94fb8123ef7a25485c8.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\3c4ae55e479c695d5aa5dc9ee43d94828d15c5704fafa94fb8123ef7a25485c8.exe

C:\Windows\system32\choice.exe

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

Network

N/A

Files

memory/1484-54-0x00000000011B0000-0x0000000001F89000-memory.dmp

memory/1796-55-0x0000000000000000-mapping.dmp

memory/1916-56-0x0000000000000000-mapping.dmp

memory/1484-57-0x00000000011B0000-0x0000000001F89000-memory.dmp