ytstealer | 4771b08ae49bf52e2ea8799269d33f43054b378692d4448dfaf0ae3b769d8281

Analysis

max time kernel
54s
max time network
190s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
30/08/2022, 01:43

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General

Target
4771b08ae49bf52e2ea8799269d33f43054b378692d4448dfaf0ae3b769d8281.exe
Size 4.0MB
Sample220830-b5b8ssaaak
SHA256 4771b08ae49bf52e2ea8799269d33f43054b378692d4448dfaf0ae3b769d8281
MD5 921028504cfda8321686532eb48fa968
SHA1 4927120ab167052f2531ef52923d5babef2942e6
SHA512 4670b8869cbf4a290d23e6d87b454c355d5984548bf05a73e2af61eabfddecfdebe3d18f55be4dbe202fb11df699824601f5f0bb4cc6b596ffb89a79ab28c64d
SSDEEP 98304:QywvTZpsedR16kxyPGpXSVj7gXO5qM92yF9:5oTjhdr6OyPe+5dAyF9
MD5 SHA1 SHA512 SSDEEP

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 1 IoCs

resource	yara_rule
behavioral2/memory/1336-123-0x0000000000080000-0x0000000000E49000-memory.dmp	family_ytstealer

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1336-120-0x0000000000080000-0x0000000000E49000-memory.dmp	upx
behavioral2/memory/1336-123-0x0000000000080000-0x0000000000E49000-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

pid	Process
1336	4771b08ae49bf52e2ea8799269d33f43054b378692d4448dfaf0ae3b769d8281.exe
1336	4771b08ae49bf52e2ea8799269d33f43054b378692d4448dfaf0ae3b769d8281.exe
1336	4771b08ae49bf52e2ea8799269d33f43054b378692d4448dfaf0ae3b769d8281.exe
1336	4771b08ae49bf52e2ea8799269d33f43054b378692d4448dfaf0ae3b769d8281.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1336 wrote to memory of 2576	1336	4771b08ae49bf52e2ea8799269d33f43054b378692d4448dfaf0ae3b769d8281.exe	67
PID 1336 wrote to memory of 2576	1336	4771b08ae49bf52e2ea8799269d33f43054b378692d4448dfaf0ae3b769d8281.exe	67
PID 2576 wrote to memory of 2708	2576	cmd.exe	69
PID 2576 wrote to memory of 2708	2576	cmd.exe	69

C:\Users\Admin\AppData\Local\Temp\4771b08ae49bf52e2ea8799269d33f43054b378692d4448dfaf0ae3b769d8281.exe
"C:\Users\Admin\AppData\Local\Temp\4771b08ae49bf52e2ea8799269d33f43054b378692d4448dfaf0ae3b769d8281.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1336
- 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\4771b08ae49bf52e2ea8799269d33f43054b378692d4448dfaf0ae3b769d8281.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2576
- - C:\Windows\system32\choice.exe
    choice /C Y /N /D Y /T 0
    3⤵
    PID:2708

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/1336-120-0x0000000000080000-0x0000000000E49000-memory.dmp

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memory/1336-123-0x0000000000080000-0x0000000000E49000-memory.dmp

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