ytstealer | b221019fa30df97d456407a899a4675d1bfa0394c6362fc1745bb3235b69be14

Analysis

max time kernel
142s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
29-08-2022 04:39

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General

Target

tmp.exe
Size

4.0MB
MD5

8ce1b58517d9488123e72f84b2ba3709
SHA1

883bfba65cc27b5cbca1c5f8106961edae9b25d5
SHA256

b221019fa30df97d456407a899a4675d1bfa0394c6362fc1745bb3235b69be14
SHA512

32c9ecf59e760dd60b56ec980afac5b7bdc5bd39f128400425dc9e920461c3158d1b5815e23f17c69915ec7992e22db10742da8bda9fee34eb87e368c3d9fd1b
SSDEEP

98304:sm/4ZDjXetmLgiv6mn8GlSFDOXB/xJO+RJN3A0/l:sm/eqtmRvJNlSpOXB/aQ3w0/

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/4372-133-0x0000000000CE0000-0x0000000001AF4000-memory.dmp	family_ytstealer
behavioral2/memory/4372-138-0x0000000000CE0000-0x0000000001AF4000-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/4372-132-0x0000000000CE0000-0x0000000001AF4000-memory.dmp	upx
behavioral2/memory/4372-133-0x0000000000CE0000-0x0000000001AF4000-memory.dmp	upx
behavioral2/memory/4372-138-0x0000000000CE0000-0x0000000001AF4000-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

2540 powershell.exe
2540 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2540 powershell.exe

pid	process
2540	powershell.exe
2540	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2540	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

tmp.exe

description	pid	process	target process
PID 4372 wrote to memory of 2540	4372	tmp.exe	powershell.exe
PID 4372 wrote to memory of 2540	4372	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:4372

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell "" "Get-WmiObject Win32_PortConnector"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2540

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/2540-134-0x0000000000000000-mapping.dmp

Download
memory/2540-135-0x00000220BB8F0000-0x00000220BB912000-memory.dmp

Filesize
136KB

Download
memory/2540-136-0x00007FF9F2ED0000-0x00007FF9F3991000-memory.dmp

Filesize
10.8MB

Download
memory/2540-137-0x00007FF9F2ED0000-0x00007FF9F3991000-memory.dmp

Filesize
10.8MB

Download
memory/4372-132-0x0000000000CE0000-0x0000000001AF4000-memory.dmp

Filesize
14.1MB

Download
memory/4372-133-0x0000000000CE0000-0x0000000001AF4000-memory.dmp

Filesize
14.1MB

Download
memory/4372-138-0x0000000000CE0000-0x0000000001AF4000-memory.dmp

Filesize
14.1MB

Download