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 Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

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