ytstealer | b5310daa207f4baf357415201fc7365e91a62d6273bd5128d9a900081d782c4a

Analysis

max time kernel
120s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
30-08-2022 06:27

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General

Target

tmp.exe
Size

4.0MB
MD5

c4877fe395a2877012a9b1eccc07ac2f
SHA1

2e217012be69428efce8bc63a8b114e75f638728
SHA256

b5310daa207f4baf357415201fc7365e91a62d6273bd5128d9a900081d782c4a
SHA512

562c69e0f10a5494de14dfdb5a8065368030243a51628bb51b6b503cdfa8fe0deee0c62e24b0c5f74d962ed07388d41cfe2f786da248d00553a0c6f9aa595ab9
SSDEEP

98304:zEa5po5MC3Mi6eY41p1xHOuVHh/RbtiWetcX71zzEQ:zvpoeC8kl1xOYHhJbtoidx

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/392-133-0x0000000000180000-0x0000000000F93000-memory.dmp	family_ytstealer
behavioral2/memory/392-137-0x0000000000180000-0x0000000000F93000-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/392-132-0x0000000000180000-0x0000000000F93000-memory.dmp	upx
behavioral2/memory/392-133-0x0000000000180000-0x0000000000F93000-memory.dmp	upx
behavioral2/memory/392-137-0x0000000000180000-0x0000000000F93000-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

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

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 640 powershell.exe
Suspicious use of WriteProcessMemory 2 IoCs

Processes:

tmp.exe

description pid process target process

PID 392 wrote to memory of 640 392 tmp.exe powershell.exe
PID 392 wrote to memory of 640 392 tmp.exe powershell.exe

pid	process
640	powershell.exe
640	powershell.exe

description	pid	process
Token: SeDebugPrivilege	640	powershell.exe

description	pid	process	target process
PID 392 wrote to memory of 640	392	tmp.exe	powershell.exe
PID 392 wrote to memory of 640	392	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:392

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell "" "Get-WmiObject Win32_PortConnector"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:640

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/392-132-0x0000000000180000-0x0000000000F93000-memory.dmp

Filesize
14.1MB

Download
memory/392-133-0x0000000000180000-0x0000000000F93000-memory.dmp

Filesize
14.1MB

Download
memory/392-137-0x0000000000180000-0x0000000000F93000-memory.dmp

Filesize
14.1MB

Download
memory/640-134-0x0000000000000000-mapping.dmp

Download
memory/640-135-0x000002004FFC0000-0x000002004FFE2000-memory.dmp

Filesize
136KB

Download
memory/640-136-0x00007FFD68420000-0x00007FFD68EE1000-memory.dmp

Filesize
10.8MB

Download
memory/640-138-0x00007FFD68420000-0x00007FFD68EE1000-memory.dmp

Filesize
10.8MB

Download