ytstealer | c1eae8655ba2f8afc1fdba12f836ad4ba4d26057109b8f70519aba2b88c9b92b

Analysis

max time kernel
77s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
04-10-2022 15:25

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General

Target

malware_smoke_95845919.exe
Size

4.0MB
MD5

f2b90caf89abf936fa91a9b007330174
SHA1

f6d40b9d09088cbc360afc0e0402d6dca5a8dac2
SHA256

c1eae8655ba2f8afc1fdba12f836ad4ba4d26057109b8f70519aba2b88c9b92b
SHA512

87bbf70f746b64191cb5075157a9de13852626d1cf49f85695da2ebc53d7712e4f6039f0aedda0842294bd670e14b43800b97e0c0acb9f3711a055e3feb6f5b0
SSDEEP

98304:r0w4bFKyOF2oGgYUIjn+xU9jzv/4hbznwSIFnRL:rp4RKElgY7n+kzva+R

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/2356-135-0x0000000000AC0000-0x0000000001888000-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/2356-132-0x0000000000AC0000-0x0000000001888000-memory.dmp	upx
behavioral2/memory/2356-135-0x0000000000AC0000-0x0000000001888000-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:

malware_smoke_95845919.exe

pid process

2356 malware_smoke_95845919.exe
2356 malware_smoke_95845919.exe
2356 malware_smoke_95845919.exe
2356 malware_smoke_95845919.exe

pid	process
2356	malware_smoke_95845919.exe
2356	malware_smoke_95845919.exe
2356	malware_smoke_95845919.exe
2356	malware_smoke_95845919.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

malware_smoke_95845919.execmd.exe

description	pid	process	target process
PID 2356 wrote to memory of 3812	2356	malware_smoke_95845919.exe	cmd.exe
PID 2356 wrote to memory of 3812	2356	malware_smoke_95845919.exe	cmd.exe
PID 3812 wrote to memory of 2252	3812	cmd.exe	choice.exe
PID 3812 wrote to memory of 2252	3812	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\malware_smoke_95845919.exe
"C:\Users\Admin\AppData\Local\Temp\malware_smoke_95845919.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2356

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\malware_smoke_95845919.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:3812

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
3⤵
PID:2252

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/2252-134-0x0000000000000000-mapping.dmp

Download
memory/2356-132-0x0000000000AC0000-0x0000000001888000-memory.dmp

Filesize
13.8MB

Download
memory/2356-135-0x0000000000AC0000-0x0000000001888000-memory.dmp

Filesize
13.8MB

Download
memory/3812-133-0x0000000000000000-mapping.dmp

Download