ytstealer | 18fb5108dc25caac2c5cccff5583a297d3eff58ec86a28b6fd6b3e5c542c5f78

Analysis

max time kernel
164s
max time network
175s
platform
windows10-1703_x64
resource
win10-20220718-en
resource tags

arch:x64arch:x86image:win10-20220718-enlocale:en-usos:windows10-1703-x64system
submitted
12-08-2022 06:55

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General

Target

18FB5108DC25CAAC2C5CCCFF5583A297D3EFF58EC86A28B6FD6B3E5C542C5F78.exe
Size

4.0MB
MD5

ed6dddc2516c34092d53008a482784dc
SHA1

8569ebfeba7c442af07555325dffa09cb164d139
SHA256

18fb5108dc25caac2c5cccff5583a297d3eff58ec86a28b6fd6b3e5c542c5f78
SHA512

93b83727d8311e52087cc30156ee8cc958474d47bd86d2f52424b0bfe34adc483d4980a29aef684ec69292024f57a444bb02b308a1cb254ae5bc48b809012e79

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/2376-117-0x0000000000A40000-0x0000000001809000-memory.dmp	family_ytstealer
behavioral2/memory/2376-119-0x0000000000A40000-0x0000000001809000-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/2376-117-0x0000000000A40000-0x0000000001809000-memory.dmp	upx
behavioral2/memory/2376-119-0x0000000000A40000-0x0000000001809000-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:

18FB5108DC25CAAC2C5CCCFF5583A297D3EFF58EC86A28B6FD6B3E5C542C5F78.exe

pid	process
2376	18FB5108DC25CAAC2C5CCCFF5583A297D3EFF58EC86A28B6FD6B3E5C542C5F78.exe
2376	18FB5108DC25CAAC2C5CCCFF5583A297D3EFF58EC86A28B6FD6B3E5C542C5F78.exe
2376	18FB5108DC25CAAC2C5CCCFF5583A297D3EFF58EC86A28B6FD6B3E5C542C5F78.exe
2376	18FB5108DC25CAAC2C5CCCFF5583A297D3EFF58EC86A28B6FD6B3E5C542C5F78.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

18FB5108DC25CAAC2C5CCCFF5583A297D3EFF58EC86A28B6FD6B3E5C542C5F78.execmd.exe

description	pid	process	target process
PID 2376 wrote to memory of 4016	2376	18FB5108DC25CAAC2C5CCCFF5583A297D3EFF58EC86A28B6FD6B3E5C542C5F78.exe	cmd.exe
PID 2376 wrote to memory of 4016	2376	18FB5108DC25CAAC2C5CCCFF5583A297D3EFF58EC86A28B6FD6B3E5C542C5F78.exe	cmd.exe
PID 4016 wrote to memory of 4232	4016	cmd.exe	choice.exe
PID 4016 wrote to memory of 4232	4016	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\18FB5108DC25CAAC2C5CCCFF5583A297D3EFF58EC86A28B6FD6B3E5C542C5F78.exe
"C:\Users\Admin\AppData\Local\Temp\18FB5108DC25CAAC2C5CCCFF5583A297D3EFF58EC86A28B6FD6B3E5C542C5F78.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2376

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\18FB5108DC25CAAC2C5CCCFF5583A297D3EFF58EC86A28B6FD6B3E5C542C5F78.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:4016

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
3⤵
PID:4232

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2376-117-0x0000000000A40000-0x0000000001809000-memory.dmp

Filesize
13.8MB

Download
memory/2376-119-0x0000000000A40000-0x0000000001809000-memory.dmp

Filesize
13.8MB

Download
memory/4016-118-0x0000000000000000-mapping.dmp

Download
memory/4232-120-0x0000000000000000-mapping.dmp

Download