ytstealer | 39b2f8df45c1356963ad36795c5d739b1201ca4798fbcc016ed3316a8a30cc9a

Analysis

max time kernel
143s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
23-08-2022 19:16

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General

Target

file.exe
Size

4.0MB
MD5

cf9c0885f61ff3c1f2b17422e9cf45b9
SHA1

faca656638d948aab17b7fd2516ef6d18831ee3f
SHA256

39b2f8df45c1356963ad36795c5d739b1201ca4798fbcc016ed3316a8a30cc9a
SHA512

6a63e8ebf58f738bd281e0215600cf2812ffbfaf33a43bb27863b9767251cf22e5c5af1101bcac0e171026dd7c935244a8e97dce2c53bfd9696953a1eb7477d8
SSDEEP

98304:UPIhsXPGWXMKtHJWiLPLKzhXHaym7nHMsh5U3A2dGRbw0zVsQi84:QIktXFJLCHT2nHM+5spkTVYr

Score

10^/10

ytstealer spyware stealer upx

Malware Config

Signatures

YTStealer
YTStealer is a malware designed to steal YouTube authentication cookies.
stealer ytstealer

YTStealer payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3668-132-0x0000000000600000-0x0000000001414000-memory.dmp	family_ytstealer
behavioral2/memory/3668-133-0x0000000000600000-0x0000000001414000-memory.dmp	family_ytstealer
behavioral2/memory/3668-138-0x0000000000600000-0x0000000001414000-memory.dmp	family_ytstealer

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/3668-132-0x0000000000600000-0x0000000001414000-memory.dmp	upx
behavioral2/memory/3668-133-0x0000000000600000-0x0000000001414000-memory.dmp	upx
behavioral2/memory/3668-138-0x0000000000600000-0x0000000001414000-memory.dmp	upx

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

432 powershell.exe
432 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 432 powershell.exe

pid	process
432	powershell.exe
432	powershell.exe

description	pid	process
Token: SeDebugPrivilege	432	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

file.exe

description	pid	process	target process
PID 3668 wrote to memory of 432	3668	file.exe	powershell.exe
PID 3668 wrote to memory of 432	3668	file.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3668

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell "" "Get-WmiObject Win32_PortConnector"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:432

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/432-134-0x0000000000000000-mapping.dmp

Download
memory/432-135-0x0000026D670F0000-0x0000026D67112000-memory.dmp

Filesize
136KB

Download
memory/432-136-0x00007FFD0F820000-0x00007FFD102E1000-memory.dmp

Filesize
10.8MB

Download
memory/432-137-0x00007FFD0F820000-0x00007FFD102E1000-memory.dmp

Filesize
10.8MB

Download
memory/3668-132-0x0000000000600000-0x0000000001414000-memory.dmp

Filesize
14.1MB

Download
memory/3668-133-0x0000000000600000-0x0000000001414000-memory.dmp

Filesize
14.1MB

Download
memory/3668-138-0x0000000000600000-0x0000000001414000-memory.dmp

Filesize
14.1MB

Download