ytstealer | 8101c71c2c31df8da09ed7dd55da9bbd949b028f8f54f0e1cbffab82b192ed87

Analysis

max time kernel
91s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
04-10-2022 15:07

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General

Target

malware_smoke_1674270581.exe
Size

4.0MB
MD5

063c6d9a6b645ef5d4e756a64e742afc
SHA1

72857a2a3fe6948b5fcb6a8d5555b1fc56b6868d
SHA256

8101c71c2c31df8da09ed7dd55da9bbd949b028f8f54f0e1cbffab82b192ed87
SHA512

54166ad3375dc246519d56f3710f85b792e3bd13daeee619c641f487b0a11691433d0c9900ba82f6c7d29b2c92e73cf82707b3099753dda6583b39db8d7f8c0b
SSDEEP

98304:v/M+dZZSK8hdw8wqxO0dGZeZOLQLtPeEdtcGbr/fBBz:JZSK8hd7NO0cZOqabhr/Lz

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/4792-132-0x0000000000570000-0x0000000001339000-memory.dmp	family_ytstealer
behavioral2/memory/4792-134-0x0000000000570000-0x0000000001339000-memory.dmp	family_ytstealer

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4792-132-0x0000000000570000-0x0000000001339000-memory.dmp	upx
behavioral2/memory/4792-134-0x0000000000570000-0x0000000001339000-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 4 IoCs

Processes:

malware_smoke_1674270581.exe

pid process

4792 malware_smoke_1674270581.exe
4792 malware_smoke_1674270581.exe
4792 malware_smoke_1674270581.exe
4792 malware_smoke_1674270581.exe

pid	process
4792	malware_smoke_1674270581.exe
4792	malware_smoke_1674270581.exe
4792	malware_smoke_1674270581.exe
4792	malware_smoke_1674270581.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

malware_smoke_1674270581.execmd.exe

description	pid	process	target process
PID 4792 wrote to memory of 4524	4792	malware_smoke_1674270581.exe	cmd.exe
PID 4792 wrote to memory of 4524	4792	malware_smoke_1674270581.exe	cmd.exe
PID 4524 wrote to memory of 3896	4524	cmd.exe	choice.exe
PID 4524 wrote to memory of 3896	4524	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\malware_smoke_1674270581.exe
"C:\Users\Admin\AppData\Local\Temp\malware_smoke_1674270581.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4792

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\malware_smoke_1674270581.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:4524

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
3⤵
PID:3896

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/3896-135-0x0000000000000000-mapping.dmp

Download
memory/4524-133-0x0000000000000000-mapping.dmp

Download
memory/4792-132-0x0000000000570000-0x0000000001339000-memory.dmp

Filesize
13.8MB

Download
memory/4792-134-0x0000000000570000-0x0000000001339000-memory.dmp

Filesize
13.8MB

Download