ytstealer | 4e78dbfd9d5fcc891dc5bf5c37930188a51b817f9c94406717ec3b14c300de1a

Analysis

max time kernel
165s
max time network
182s
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 01:45

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General

Target

4e78dbfd9d5fcc891dc5bf5c37930188a51b817f9c94406717ec3b14c300de1a.exe
Size

4.0MB
MD5

7ee95161e2c413fcaaaab8a308fe8204
SHA1

96eefc3743931d2817c9d2f3fb4f8c409c6f93a0
SHA256

4e78dbfd9d5fcc891dc5bf5c37930188a51b817f9c94406717ec3b14c300de1a
SHA512

5916cea41952da371e7b93a394967860817ad2c7ebc2378321b0ff50076c7c582634ac1b268d3582270af50c181d10392b5390a57ce5946da80be3347eec527b
SSDEEP

98304:3SG3nNVF/ZdTsa7AgnjeZnfCeD7W6N0m882ZJ+k:37UaMgQkTJ+

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/3516-116-0x0000000000170000-0x0000000000F39000-memory.dmp	family_ytstealer
behavioral2/memory/3516-118-0x0000000000170000-0x0000000000F39000-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/3516-116-0x0000000000170000-0x0000000000F39000-memory.dmp	upx
behavioral2/memory/3516-118-0x0000000000170000-0x0000000000F39000-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:

4e78dbfd9d5fcc891dc5bf5c37930188a51b817f9c94406717ec3b14c300de1a.exe

pid	process
3516	4e78dbfd9d5fcc891dc5bf5c37930188a51b817f9c94406717ec3b14c300de1a.exe
3516	4e78dbfd9d5fcc891dc5bf5c37930188a51b817f9c94406717ec3b14c300de1a.exe
3516	4e78dbfd9d5fcc891dc5bf5c37930188a51b817f9c94406717ec3b14c300de1a.exe
3516	4e78dbfd9d5fcc891dc5bf5c37930188a51b817f9c94406717ec3b14c300de1a.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

4e78dbfd9d5fcc891dc5bf5c37930188a51b817f9c94406717ec3b14c300de1a.execmd.exe

description	pid	process	target process
PID 3516 wrote to memory of 2128	3516	4e78dbfd9d5fcc891dc5bf5c37930188a51b817f9c94406717ec3b14c300de1a.exe	cmd.exe
PID 3516 wrote to memory of 2128	3516	4e78dbfd9d5fcc891dc5bf5c37930188a51b817f9c94406717ec3b14c300de1a.exe	cmd.exe
PID 2128 wrote to memory of 4992	2128	cmd.exe	choice.exe
PID 2128 wrote to memory of 4992	2128	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\4e78dbfd9d5fcc891dc5bf5c37930188a51b817f9c94406717ec3b14c300de1a.exe
"C:\Users\Admin\AppData\Local\Temp\4e78dbfd9d5fcc891dc5bf5c37930188a51b817f9c94406717ec3b14c300de1a.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3516

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\4e78dbfd9d5fcc891dc5bf5c37930188a51b817f9c94406717ec3b14c300de1a.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:2128

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
3⤵
PID:4992

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/2128-117-0x0000000000000000-mapping.dmp

Download
memory/3516-116-0x0000000000170000-0x0000000000F39000-memory.dmp

Filesize
13.8MB

Download
memory/3516-118-0x0000000000170000-0x0000000000F39000-memory.dmp

Filesize
13.8MB

Download
memory/4992-119-0x0000000000000000-mapping.dmp

Download