ytstealer | ff3ae8fff0d1862d4bde8f61e0ed14ef76d6d2cc6d940bb83dc0b4cfdacc2752

Analysis

max time kernel
64s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
15-09-2022 04:36

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General

Target

tmp.exe
Size

4.1MB
MD5

bb1dec3065d196ef788c2907ad6f5494
SHA1

4775ac52549c6547aa20239f5ac00ee6c9ef23f7
SHA256

ff3ae8fff0d1862d4bde8f61e0ed14ef76d6d2cc6d940bb83dc0b4cfdacc2752
SHA512

42e1cae0bdcde411cd72b6f28878781ce06666afd33dcd98c2e16e66f3f7b58fa797be36d15b110df1ce8acac523247499dba3a70e6420ebce6d3ac08fe9b388
SSDEEP

98304:povZKvwtbFyqeDZ1RLaTIZyS7+4ScSgOFzG7SdINkn:aZiYhyqez5TJ+ESgOFi76iw

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/4656-133-0x0000000000600000-0x0000000001425000-memory.dmp	family_ytstealer
behavioral2/memory/4656-138-0x0000000000600000-0x0000000001425000-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/4656-132-0x0000000000600000-0x0000000001425000-memory.dmp	upx
behavioral2/memory/4656-133-0x0000000000600000-0x0000000001425000-memory.dmp	upx
behavioral2/memory/4656-138-0x0000000000600000-0x0000000001425000-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

4456 powershell.exe
4456 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 4456 powershell.exe

pid	process
4456	powershell.exe
4456	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4456	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

tmp.exe

description	pid	process	target process
PID 4656 wrote to memory of 4456	4656	tmp.exe	powershell.exe
PID 4656 wrote to memory of 4456	4656	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:4656

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell "" "Get-WmiObject Win32_PortConnector"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4456

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/4456-134-0x0000000000000000-mapping.dmp

Download
memory/4456-135-0x0000023CA4ED0000-0x0000023CA4EF2000-memory.dmp

Filesize
136KB

Download
memory/4456-136-0x00007FFE1BD50000-0x00007FFE1C811000-memory.dmp

Filesize
10.8MB

Download
memory/4456-137-0x00007FFE1BD50000-0x00007FFE1C811000-memory.dmp

Filesize
10.8MB

Download
memory/4656-132-0x0000000000600000-0x0000000001425000-memory.dmp

Filesize
14.1MB

Download
memory/4656-133-0x0000000000600000-0x0000000001425000-memory.dmp

Filesize
14.1MB

Download
memory/4656-138-0x0000000000600000-0x0000000001425000-memory.dmp

Filesize
14.1MB

Download