ytstealer | 8c0391f7670e8328b7c350bd9e144ecab2ab84434b15007b39ecf41d68d854aa

Analysis

max time kernel
51s
max time network
179s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
30-08-2022 02:09

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General

Target

8c0391f7670e8328b7c350bd9e144ecab2ab84434b15007b39ecf41d68d854aa.exe
Size

4.0MB
MD5

46c0d9c4e8db1eaf2687789644d39866
SHA1

6f2c69937950d0282b707e9e98247dce569b3fdc
SHA256

8c0391f7670e8328b7c350bd9e144ecab2ab84434b15007b39ecf41d68d854aa
SHA512

7b7235357b039b8d8e39455982194aba1544684eda6adf72559878fc8ddd33e24ee602f9ee29d89108b42ed9becb175a9d6f58e4a56067a688a999e6219b0f42
SSDEEP

98304:P12iEhf20tpcvJRdM+qi0gbGuB9/uFGYUxs15xaCRNL3VIx:PhO2mpcvJRXqHgbhYmGfd3V

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 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1204-123-0x0000000000100000-0x0000000000EC8000-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/1204-120-0x0000000000100000-0x0000000000EC8000-memory.dmp	upx
behavioral2/memory/1204-123-0x0000000000100000-0x0000000000EC8000-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:

8c0391f7670e8328b7c350bd9e144ecab2ab84434b15007b39ecf41d68d854aa.exe

pid	process
1204	8c0391f7670e8328b7c350bd9e144ecab2ab84434b15007b39ecf41d68d854aa.exe
1204	8c0391f7670e8328b7c350bd9e144ecab2ab84434b15007b39ecf41d68d854aa.exe
1204	8c0391f7670e8328b7c350bd9e144ecab2ab84434b15007b39ecf41d68d854aa.exe
1204	8c0391f7670e8328b7c350bd9e144ecab2ab84434b15007b39ecf41d68d854aa.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

8c0391f7670e8328b7c350bd9e144ecab2ab84434b15007b39ecf41d68d854aa.execmd.exe

description	pid	process	target process
PID 1204 wrote to memory of 4760	1204	8c0391f7670e8328b7c350bd9e144ecab2ab84434b15007b39ecf41d68d854aa.exe	cmd.exe
PID 1204 wrote to memory of 4760	1204	8c0391f7670e8328b7c350bd9e144ecab2ab84434b15007b39ecf41d68d854aa.exe	cmd.exe
PID 4760 wrote to memory of 3860	4760	cmd.exe	choice.exe
PID 4760 wrote to memory of 3860	4760	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\8c0391f7670e8328b7c350bd9e144ecab2ab84434b15007b39ecf41d68d854aa.exe
"C:\Users\Admin\AppData\Local\Temp\8c0391f7670e8328b7c350bd9e144ecab2ab84434b15007b39ecf41d68d854aa.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1204

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\8c0391f7670e8328b7c350bd9e144ecab2ab84434b15007b39ecf41d68d854aa.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:4760

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
3⤵
PID:3860

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/1204-120-0x0000000000100000-0x0000000000EC8000-memory.dmp

Filesize
13.8MB

Download
memory/1204-123-0x0000000000100000-0x0000000000EC8000-memory.dmp

Filesize
13.8MB

Download
memory/3860-122-0x0000000000000000-mapping.dmp

Download
memory/4760-121-0x0000000000000000-mapping.dmp

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