ytstealer | a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3

Analysis

max time kernel
52s
max time network
182s
platform
windows10-1703_x64
resource
win10-20220718-en
resource tags

arch:x64arch:x86image:win10-20220718-enlocale:en-usos:windows10-1703-x64system
submitted
30-07-2022 04:15

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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
behavioral2/memory/2096-117-0x0000000000B40000-0x0000000001918000-memory.dmp	family_ytstealer
behavioral2/memory/2096-120-0x0000000000B40000-0x0000000001918000-memory.dmp	family_ytstealer

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2096-117-0x0000000000B40000-0x0000000001918000-memory.dmp	upx
behavioral2/memory/2096-120-0x0000000000B40000-0x0000000001918000-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
2096	a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe
2096	a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe
2096	a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe
2096	a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.execmd.exe

description	pid	process	target process
PID 2096 wrote to memory of 2896	2096	a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe	cmd.exe
PID 2096 wrote to memory of 2896	2096	a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3.exe	cmd.exe
PID 2896 wrote to memory of 4580	2896	cmd.exe	choice.exe
PID 2896 wrote to memory of 4580	2896	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:2096
- 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:2896
- - C:\Windows\system32\choice.exe
    choice /C Y /N /D Y /T 0
    3⤵
    PID:4580

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/2096-117-0x0000000000B40000-0x0000000001918000-memory.dmp

Filesize
13.8MB

Download
memory/2096-120-0x0000000000B40000-0x0000000001918000-memory.dmp

Filesize
13.8MB

Download
memory/2896-118-0x0000000000000000-mapping.dmp

Download
memory/4580-119-0x0000000000000000-mapping.dmp

Download