ytstealer | 7b6662b7e68c82c21609f9c989adbbaeeb2b96fc546a3cdd54168f0d3b743583

Analysis

max time kernel
93s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25-08-2022 15:45

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General

Target

file.exe
Size

4.0MB
MD5

ac13631b8c64bbefbe0c95baa07e4ead
SHA1

359589babaf0891c770893a6dfff2bb676e5cbb0
SHA256

7b6662b7e68c82c21609f9c989adbbaeeb2b96fc546a3cdd54168f0d3b743583
SHA512

4deb6783ba6db11228b9b9d88f11d62b0439aec19f80a1c5356e4f5988810451f6dd9ee83107393154ce4a409137a6489fbdde0d53b6bf593d07100dde5befe3
SSDEEP

98304:+CAOvB/KLINihANC1jlUplJ1VrrDHhpb8zQL7wX9Kc7Ku:PJ/KEkWNCplklJ7DTSQL74wE

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/3304-132-0x0000000000B60000-0x0000000001974000-memory.dmp	family_ytstealer
behavioral2/memory/3304-133-0x0000000000B60000-0x0000000001974000-memory.dmp	family_ytstealer
behavioral2/memory/3304-137-0x0000000000B60000-0x0000000001974000-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/3304-132-0x0000000000B60000-0x0000000001974000-memory.dmp	upx
behavioral2/memory/3304-133-0x0000000000B60000-0x0000000001974000-memory.dmp	upx
behavioral2/memory/3304-137-0x0000000000B60000-0x0000000001974000-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

3356 powershell.exe
3356 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 3356 powershell.exe

pid	process
3356	powershell.exe
3356	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3356	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

file.exe

description	pid	process	target process
PID 3304 wrote to memory of 3356	3304	file.exe	powershell.exe
PID 3304 wrote to memory of 3356	3304	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:3304

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell "" "Get-WmiObject Win32_PortConnector"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3356

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/3304-132-0x0000000000B60000-0x0000000001974000-memory.dmp

Filesize
14.1MB

Download
memory/3304-133-0x0000000000B60000-0x0000000001974000-memory.dmp

Filesize
14.1MB

Download
memory/3304-137-0x0000000000B60000-0x0000000001974000-memory.dmp

Filesize
14.1MB

Download
memory/3356-134-0x0000000000000000-mapping.dmp

Download
memory/3356-135-0x0000021DECB70000-0x0000021DECB92000-memory.dmp

Filesize
136KB

Download
memory/3356-136-0x00007FFAFF430000-0x00007FFAFFEF1000-memory.dmp

Filesize
10.8MB

Download