ytstealer | 0991d6bc23df2a116b60b9961e79319e6baea6e3db89f6a56150c9744228da77

Analysis

max time kernel
147s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
02-08-2023 18:12

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General

Target

Ytstbgfgfijjcc8_browsingExe.exe
Size

4.0MB
MD5

6e87efdab8ea34ab7f664de23cd03e98
SHA1

5567dfca71f21f011d1f6022514d9891fec45dca
SHA256

0991d6bc23df2a116b60b9961e79319e6baea6e3db89f6a56150c9744228da77
SHA512

f2494cf7dd6b8c221cc6b327fae1b907ef441d369a62e8d40966ee435a81f69838954c5649eb079030e7c8c39b0bdb5620fbfe33978118c61152c76acc6e170a
SSDEEP

98304:XIWOJkSa8tMB3o6rmkFS40V6AatqozTLegpCxpy5Rr:XIWOJkUmYWxFEawIeg8x85Rr

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

Processes:

resource	yara_rule
behavioral2/memory/3724-134-0x0000000000F50000-0x0000000001D19000-memory.dmp	family_ytstealer

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
T1552.001

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/3724-133-0x0000000000F50000-0x0000000001D19000-memory.dmp	upx
behavioral2/memory/3724-134-0x0000000000F50000-0x0000000001D19000-memory.dmp	upx

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Ytstbgfgfijjcc8_browsingExe.exe

pid	process
3724	Ytstbgfgfijjcc8_browsingExe.exe
3724	Ytstbgfgfijjcc8_browsingExe.exe
3724	Ytstbgfgfijjcc8_browsingExe.exe
3724	Ytstbgfgfijjcc8_browsingExe.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

Ytstbgfgfijjcc8_browsingExe.execmd.exe

description	pid	process	target process
PID 3724 wrote to memory of 780	3724	Ytstbgfgfijjcc8_browsingExe.exe	cmd.exe
PID 3724 wrote to memory of 780	3724	Ytstbgfgfijjcc8_browsingExe.exe	cmd.exe
PID 780 wrote to memory of 4728	780	cmd.exe	choice.exe
PID 780 wrote to memory of 4728	780	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\Ytstbgfgfijjcc8_browsingExe.exe
"C:\Users\Admin\AppData\Local\Temp\Ytstbgfgfijjcc8_browsingExe.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3724

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\Ytstbgfgfijjcc8_browsingExe.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:780

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
3⤵
PID:4728

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/3724-133-0x0000000000F50000-0x0000000001D19000-memory.dmp

Filesize
13.8MB

Download
memory/3724-134-0x0000000000F50000-0x0000000001D19000-memory.dmp

Filesize
13.8MB

Download