ytstealer | ff3ae8fff0d1862d4bde8f61e0ed14ef76d6d2cc6d940bb83dc0b4cfdacc2752

Analysis

max time kernel
91s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
22-09-2022 11:35

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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/4992-133-0x00000000009A0000-0x00000000017C5000-memory.dmp	family_ytstealer
behavioral2/memory/4992-138-0x00000000009A0000-0x00000000017C5000-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/4992-132-0x00000000009A0000-0x00000000017C5000-memory.dmp	upx
behavioral2/memory/4992-133-0x00000000009A0000-0x00000000017C5000-memory.dmp	upx
behavioral2/memory/4992-138-0x00000000009A0000-0x00000000017C5000-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
1396	powershell.exe
1396	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	1396	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

tmp.exe

description	pid	Process	procid_target
PID 4992 wrote to memory of 1396	4992	tmp.exe	86
PID 4992 wrote to memory of 1396	4992	tmp.exe	86

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4992
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell "" "Get-WmiObject Win32_PortConnector"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1396

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/1396-134-0x0000000000000000-mapping.dmp

Download
memory/1396-135-0x0000024527030000-0x0000024527052000-memory.dmp

Filesize
136KB

Download
memory/1396-136-0x00007FFE985D0000-0x00007FFE99091000-memory.dmp

Filesize
10.8MB

Download
memory/1396-137-0x00007FFE985D0000-0x00007FFE99091000-memory.dmp

Filesize
10.8MB

Download
memory/4992-132-0x00000000009A0000-0x00000000017C5000-memory.dmp

Filesize
14.1MB

Download
memory/4992-133-0x00000000009A0000-0x00000000017C5000-memory.dmp

Filesize
14.1MB

Download
memory/4992-138-0x00000000009A0000-0x00000000017C5000-memory.dmp

Filesize
14.1MB

Download