ytstealer | c1eae8655ba2f8afc1fdba12f836ad4ba4d26057109b8f70519aba2b88c9b92b

Analysis

max time kernel
27s
max time network
43s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-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

resource	yara_rule
behavioral1/memory/1592-56-0x0000000000240000-0x0000000001008000-memory.dmp	family_ytstealer

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1592-54-0x0000000000240000-0x0000000001008000-memory.dmp	upx
behavioral1/memory/1592-56-0x0000000000240000-0x0000000001008000-memory.dmp	upx

Deletes itself 1 IoCs

pid	Process
656	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
T1081

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1592	malware_smoke_95845919.exe
1592	malware_smoke_95845919.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1592 wrote to memory of 656	1592	malware_smoke_95845919.exe	28
PID 1592 wrote to memory of 656	1592	malware_smoke_95845919.exe	28
PID 1592 wrote to memory of 656	1592	malware_smoke_95845919.exe	28
PID 656 wrote to memory of 1208	656	cmd.exe	30
PID 656 wrote to memory of 1208	656	cmd.exe	30
PID 656 wrote to memory of 1208	656	cmd.exe	30

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:1592
- 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⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:656
- - C:\Windows\system32\choice.exe
    choice /C Y /N /D Y /T 0
    3⤵
    PID:1208

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/1592-54-0x0000000000240000-0x0000000001008000-memory.dmp

Filesize
13.8MB

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memory/1592-56-0x0000000000240000-0x0000000001008000-memory.dmp

Filesize
13.8MB

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