ytstealer | 357ae268fb3ca9079a3cc844dbb07088d6c4eb8ef18de7c5e974d8bead1cb996

Analysis

max time kernel
43s
max time network
46s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
12-08-2022 06:57

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General

Target

357AE268FB3CA9079A3CC844DBB07088D6C4EB8EF18DE7C5E974D8BEAD1CB996.exe
Size

4.0MB
MD5

e3bd38237b5a50a15c2163135aeb4311
SHA1

6e206e1a3dda12e7c10806b06f38e13ed2a10aa3
SHA256

357ae268fb3ca9079a3cc844dbb07088d6c4eb8ef18de7c5e974d8bead1cb996
SHA512

549bd4aa1ec91a9e8f808c47c33c94a8539bb3e1274d1fd6b19534d6fe31a685af86b5273d17792e492cc8c8fa4c740bd1afb15558dda781c4e0d1323e8fbb79

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
behavioral1/memory/1892-54-0x0000000000060000-0x0000000000E39000-memory.dmp	family_ytstealer
behavioral1/memory/1892-57-0x0000000000060000-0x0000000000E39000-memory.dmp	family_ytstealer

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1892-54-0x0000000000060000-0x0000000000E39000-memory.dmp	upx
behavioral1/memory/1892-57-0x0000000000060000-0x0000000000E39000-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 2 IoCs

Processes:

357AE268FB3CA9079A3CC844DBB07088D6C4EB8EF18DE7C5E974D8BEAD1CB996.exe

pid	process
1892	357AE268FB3CA9079A3CC844DBB07088D6C4EB8EF18DE7C5E974D8BEAD1CB996.exe
1892	357AE268FB3CA9079A3CC844DBB07088D6C4EB8EF18DE7C5E974D8BEAD1CB996.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

357AE268FB3CA9079A3CC844DBB07088D6C4EB8EF18DE7C5E974D8BEAD1CB996.execmd.exe

description	pid	process	target process
PID 1892 wrote to memory of 1076	1892	357AE268FB3CA9079A3CC844DBB07088D6C4EB8EF18DE7C5E974D8BEAD1CB996.exe	cmd.exe
PID 1892 wrote to memory of 1076	1892	357AE268FB3CA9079A3CC844DBB07088D6C4EB8EF18DE7C5E974D8BEAD1CB996.exe	cmd.exe
PID 1892 wrote to memory of 1076	1892	357AE268FB3CA9079A3CC844DBB07088D6C4EB8EF18DE7C5E974D8BEAD1CB996.exe	cmd.exe
PID 1076 wrote to memory of 700	1076	cmd.exe	choice.exe
PID 1076 wrote to memory of 700	1076	cmd.exe	choice.exe
PID 1076 wrote to memory of 700	1076	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\357AE268FB3CA9079A3CC844DBB07088D6C4EB8EF18DE7C5E974D8BEAD1CB996.exe
"C:\Users\Admin\AppData\Local\Temp\357AE268FB3CA9079A3CC844DBB07088D6C4EB8EF18DE7C5E974D8BEAD1CB996.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1892

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\357AE268FB3CA9079A3CC844DBB07088D6C4EB8EF18DE7C5E974D8BEAD1CB996.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:1076

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
3⤵
PID:700

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/700-56-0x0000000000000000-mapping.dmp

Download
memory/1076-55-0x0000000000000000-mapping.dmp

Download
memory/1892-54-0x0000000000060000-0x0000000000E39000-memory.dmp

Filesize
13.8MB

Download
memory/1892-57-0x0000000000060000-0x0000000000E39000-memory.dmp

Filesize
13.8MB

Download