ytstealer | a54ac89930406913a3b0b3b8e3ef738135a9b7fa54b01578f870e26ee9f99efb

Analysis

max time kernel
90s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
31-08-2022 04:35

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General

Target

start.exe
Size

4.0MB
MD5

47b29465bb5fcbbd899f1d98af193f06
SHA1

ddd7c01b07939751f734c1e9b7aa17853447e02c
SHA256

a54ac89930406913a3b0b3b8e3ef738135a9b7fa54b01578f870e26ee9f99efb
SHA512

838a170802283f318712195402dc26dc601d2f81d3dae1f32309e532af732808c1a8b03c80f7dcf99b2ae94276678bb4211a44ebe889335da34a6083c4bd31f8
SSDEEP

98304:556qNnHwRAd/G/dzWR6bn0RqGUvxf9g+9wZbgVA4GYaBD/zgEbSCxj:55XQN1zTreqGsxD5VtGYa1/

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

Processes:

resource	yara_rule
behavioral2/memory/5056-132-0x00000000000A0000-0x0000000000EB2000-memory.dmp	family_ytstealer
behavioral2/memory/5056-133-0x00000000000A0000-0x0000000000EB2000-memory.dmp	family_ytstealer
behavioral2/memory/5056-137-0x00000000000A0000-0x0000000000EB2000-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/5056-132-0x00000000000A0000-0x0000000000EB2000-memory.dmp	upx
behavioral2/memory/5056-133-0x00000000000A0000-0x0000000000EB2000-memory.dmp	upx
behavioral2/memory/5056-137-0x00000000000A0000-0x0000000000EB2000-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

4304 powershell.exe
4304 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 4304 powershell.exe

pid	process
4304	powershell.exe
4304	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4304	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

start.exe

description	pid	process	target process
PID 5056 wrote to memory of 4304	5056	start.exe	powershell.exe
PID 5056 wrote to memory of 4304	5056	start.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\start.exe
"C:\Users\Admin\AppData\Local\Temp\start.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5056

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell "" "Get-WmiObject Win32_PortConnector"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4304

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/4304-134-0x0000000000000000-mapping.dmp

Download
memory/4304-135-0x000002CAA88F0000-0x000002CAA8912000-memory.dmp

Filesize
136KB

Download
memory/4304-136-0x00007FFB60370000-0x00007FFB60E31000-memory.dmp

Filesize
10.8MB

Download
memory/5056-132-0x00000000000A0000-0x0000000000EB2000-memory.dmp

Filesize
14.1MB

Download
memory/5056-133-0x00000000000A0000-0x0000000000EB2000-memory.dmp

Filesize
14.1MB

Download
memory/5056-137-0x00000000000A0000-0x0000000000EB2000-memory.dmp

Filesize
14.1MB

Download