ytstealer | 6d5320cd6e4cfc208f6703fff254b6f1363e1afdf7d8e77155549a674fa3a263

Analysis

max time kernel
177s
max time network
201s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02-09-2022 12:57

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General

Target

bebra.exe
Size

4.0MB
MD5

96ec3efa9bd454550b615df142b08295
SHA1

4a8a6d3a8d94f02194822c2066e11800a518c8d6
SHA256

6d5320cd6e4cfc208f6703fff254b6f1363e1afdf7d8e77155549a674fa3a263
SHA512

8e3945604e8992d3630ae716e09d3a9a3052a2ddbccf15bcaac9b636a0a49879552cbd58f299ddc6b4dd7e8b6e915c29b35bfc3a0a3f449c41f7caae776c0b6b
SSDEEP

98304:nKxZWSv8fBG6l/mNu13T3Gf4fN11cB50kd3SaNkG:cwNbuNii8D1c8

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/4972-133-0x0000000000180000-0x0000000000F94000-memory.dmp	family_ytstealer
behavioral2/memory/4972-138-0x0000000000180000-0x0000000000F94000-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/4972-132-0x0000000000180000-0x0000000000F94000-memory.dmp	upx
behavioral2/memory/4972-133-0x0000000000180000-0x0000000000F94000-memory.dmp	upx
behavioral2/memory/4972-138-0x0000000000180000-0x0000000000F94000-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

3784 powershell.exe
3784 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 3784 powershell.exe

pid	process
3784	powershell.exe
3784	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3784	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

bebra.exe

description	pid	process	target process
PID 4972 wrote to memory of 3784	4972	bebra.exe	powershell.exe
PID 4972 wrote to memory of 3784	4972	bebra.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\bebra.exe
"C:\Users\Admin\AppData\Local\Temp\bebra.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4972

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell "" "Get-WmiObject Win32_PortConnector"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3784

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/3784-134-0x0000000000000000-mapping.dmp

Download
memory/3784-135-0x0000022822060000-0x0000022822082000-memory.dmp

Filesize
136KB

Download
memory/3784-136-0x00007FF882DA0000-0x00007FF883861000-memory.dmp

Filesize
10.8MB

Download
memory/3784-137-0x00007FF882DA0000-0x00007FF883861000-memory.dmp

Filesize
10.8MB

Download
memory/4972-132-0x0000000000180000-0x0000000000F94000-memory.dmp

Filesize
14.1MB

Download
memory/4972-133-0x0000000000180000-0x0000000000F94000-memory.dmp

Filesize
14.1MB

Download
memory/4972-138-0x0000000000180000-0x0000000000F94000-memory.dmp

Filesize
14.1MB

Download