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 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/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