ytstealer | 304587f5823f2c43f9452b47d3b3f1a3cb1d25218eaf62a5c5bcacc2a6af6fd3

Analysis

max time kernel
91s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
30/05/2022, 16:51

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General

Target
start.exe
Size 4.0MB
Sample220530-vcsvmacda5
SHA256 304587f5823f2c43f9452b47d3b3f1a3cb1d25218eaf62a5c5bcacc2a6af6fd3
MD5 6bd75388a7d8b8b856663769ea263c38
SHA1 82a3d0346d1b421013eb7da90949bbec5b0b2dce
SHA512 bfd16ab321c017a5eaacefdb11a7ee557d6f3fe7bfa4da0aa1b2073d83daa4b8140d1b252996a62c34e8c8a21cdb338e9f03b11c94a4d84fea3236b5f8ef6cd4
MD5 SHA1 SHA512

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

resource	yara_rule
behavioral2/memory/3748-130-0x0000000000ED0000-0x0000000001C99000-memory.dmp	family_ytstealer
behavioral2/memory/3748-131-0x0000000000ED0000-0x0000000001C99000-memory.dmp	family_ytstealer
behavioral2/memory/3748-134-0x0000000000ED0000-0x0000000001C99000-memory.dmp	family_ytstealer

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3748-130-0x0000000000ED0000-0x0000000001C99000-memory.dmp	upx
behavioral2/memory/3748-131-0x0000000000ED0000-0x0000000001C99000-memory.dmp	upx
behavioral2/memory/3748-134-0x0000000000ED0000-0x0000000001C99000-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

pid	Process
3748	start.exe
3748	start.exe
3748	start.exe
3748	start.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3748 wrote to memory of 728	3748	start.exe	87
PID 3748 wrote to memory of 728	3748	start.exe	87
PID 728 wrote to memory of 3796	728	cmd.exe	89
PID 728 wrote to memory of 3796	728	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\start.exe
"C:\Users\Admin\AppData\Local\Temp\start.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3748
- 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\start.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:728
- - C:\Windows\system32\choice.exe
    choice /C Y /N /D Y /T 0
    3⤵
    PID:3796

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/3748-130-0x0000000000ED0000-0x0000000001C99000-memory.dmp

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memory/3748-131-0x0000000000ED0000-0x0000000001C99000-memory.dmp

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memory/3748-134-0x0000000000ED0000-0x0000000001C99000-memory.dmp

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