ytstealer | a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3

Analysis

max time kernel
123s
max time network
144s
platform
windows10-1703_x64
resource
win10-20220718-en
resource tags

arch:x64arch:x86image:win10-20220718-enlocale:en-usos:windows10-1703-x64system
submitted
01-08-2022 07:42

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General

Target

a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe
Size

4.0MB
MD5

c24ba1762d2da4b568a2e26f22f9c64f
SHA1

80109682d40260506b1c1b27aa0552c37c8b048c
SHA256

a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3
SHA512

7dd08ee1a655cc7dc2f4090a99f572b2e5d733e5533fbfa372ad2b26a16df80165d53b403e03520551fdf6ef3884ab261e02a4e6e56799dac57d9c19c2cdb6fc

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
behavioral1/memory/2388-114-0x0000000001120000-0x0000000001EF8000-memory.dmp	family_ytstealer
behavioral1/memory/2388-117-0x0000000001120000-0x0000000001EF8000-memory.dmp	family_ytstealer

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/2388-114-0x0000000001120000-0x0000000001EF8000-memory.dmp	upx
behavioral1/memory/2388-117-0x0000000001120000-0x0000000001EF8000-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 4 IoCs

Processes:

a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe

pid	process
2388	a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe
2388	a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe
2388	a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe
2388	a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.execmd.exe

description	pid	process	target process
PID 2388 wrote to memory of 4216	2388	a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe	cmd.exe
PID 2388 wrote to memory of 4216	2388	a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe	cmd.exe
PID 4216 wrote to memory of 4448	4216	cmd.exe	choice.exe
PID 4216 wrote to memory of 4448	4216	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe
"C:\Users\Admin\AppData\Local\Temp\a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\Users\Admin\AppData\Local\Temp\a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4216
- - C:\Windows\system32\choice.exe
    choice /C Y /N /D Y /T 0
    3⤵
    PID:4448

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

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Downloads

memory/2388-114-0x0000000001120000-0x0000000001EF8000-memory.dmp

Filesize
13.8MB

Download
memory/2388-117-0x0000000001120000-0x0000000001EF8000-memory.dmp

Filesize
13.8MB

Download
memory/4216-115-0x0000000000000000-mapping.dmp

Download
memory/4448-116-0x0000000000000000-mapping.dmp

Download