ytstealer | 0991d6bc23df2a116b60b9961e79319e6baea6e3db89f6a56150c9744228da77

Analysis

max time kernel
121s
max time network
127s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
11-08-2023 18:37

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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
behavioral1/memory/1700-55-0x0000000001110000-0x0000000001ED9000-memory.dmp	family_ytstealer

Deletes itself 1 IoCs

Processes:

cmd.exe

pid	Process
3056	cmd.exe

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
behavioral1/memory/1700-54-0x0000000001110000-0x0000000001ED9000-memory.dmp	upx
behavioral1/memory/1700-55-0x0000000001110000-0x0000000001ED9000-memory.dmp	upx

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Ytstbgfgfijjcc8_browsingExe.exe

pid	Process
1700	Ytstbgfgfijjcc8_browsingExe.exe
1700	Ytstbgfgfijjcc8_browsingExe.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Ytstbgfgfijjcc8_browsingExe.execmd.exe

description	pid	Process	procid_target
PID 1700 wrote to memory of 3056	1700	Ytstbgfgfijjcc8_browsingExe.exe	29
PID 1700 wrote to memory of 3056	1700	Ytstbgfgfijjcc8_browsingExe.exe	29
PID 1700 wrote to memory of 3056	1700	Ytstbgfgfijjcc8_browsingExe.exe	29
PID 3056 wrote to memory of 2952	3056	cmd.exe	31
PID 3056 wrote to memory of 2952	3056	cmd.exe	31
PID 3056 wrote to memory of 2952	3056	cmd.exe	31

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:1700
- 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⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:3056
- - C:\Windows\system32\choice.exe
    choice /C Y /N /D Y /T 0
    3⤵
    PID:2952

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1700-54-0x0000000001110000-0x0000000001ED9000-memory.dmp

Filesize
13.8MB

Download
memory/1700-55-0x0000000001110000-0x0000000001ED9000-memory.dmp

Filesize
13.8MB

Download