ytstealer | 1901ae31080f9b8f7c419290eab011086a00355a0451e9f634f545f771753901

Analysis

max time kernel
97s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
20-08-2022 07:02

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General

Target

tmp.exe
Size

4.0MB
MD5

eaaad4f36853f423ee62272e125708ff
SHA1

71c045b6a66fef5dd1f20faefbce8df88c890788
SHA256

1901ae31080f9b8f7c419290eab011086a00355a0451e9f634f545f771753901
SHA512

05292ae056faf45359b62d8feb6926c1144623e997df0893b9a74e423b84761f2ab6e3786c7fc5d7784e3ae9bff7c2e21166cbb7723f6315538357e674587431

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 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4432-133-0x0000000000170000-0x0000000000F82000-memory.dmp	family_ytstealer
behavioral2/memory/4432-138-0x0000000000170000-0x0000000000F82000-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/4432-132-0x0000000000170000-0x0000000000F82000-memory.dmp	upx
behavioral2/memory/4432-133-0x0000000000170000-0x0000000000F82000-memory.dmp	upx
behavioral2/memory/4432-138-0x0000000000170000-0x0000000000F82000-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

4872 powershell.exe
4872 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 4872 powershell.exe

pid	process
4872	powershell.exe
4872	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4872	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

tmp.exe

description	pid	process	target process
PID 4432 wrote to memory of 4872	4432	tmp.exe	powershell.exe
PID 4432 wrote to memory of 4872	4432	tmp.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4432

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell "" "Get-WmiObject Win32_PortConnector"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4872

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/4432-132-0x0000000000170000-0x0000000000F82000-memory.dmp

Filesize
14.1MB

Download
memory/4432-133-0x0000000000170000-0x0000000000F82000-memory.dmp

Filesize
14.1MB

Download
memory/4432-138-0x0000000000170000-0x0000000000F82000-memory.dmp

Filesize
14.1MB

Download
memory/4872-134-0x0000000000000000-mapping.dmp

Download
memory/4872-135-0x0000027248CB0000-0x0000027248CD2000-memory.dmp

Filesize
136KB

Download
memory/4872-136-0x00007FFF39420000-0x00007FFF39EE1000-memory.dmp

Filesize
10.8MB

Download
memory/4872-137-0x00007FFF39420000-0x00007FFF39EE1000-memory.dmp

Filesize
10.8MB

Download