ytstealer | 8101c71c2c31df8da09ed7dd55da9bbd949b028f8f54f0e1cbffab82b192ed87

Analysis

max time kernel
38s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
04-10-2022 15:07

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General

Target

malware_smoke_1674270581.exe
Size

4.0MB
MD5

063c6d9a6b645ef5d4e756a64e742afc
SHA1

72857a2a3fe6948b5fcb6a8d5555b1fc56b6868d
SHA256

8101c71c2c31df8da09ed7dd55da9bbd949b028f8f54f0e1cbffab82b192ed87
SHA512

54166ad3375dc246519d56f3710f85b792e3bd13daeee619c641f487b0a11691433d0c9900ba82f6c7d29b2c92e73cf82707b3099753dda6583b39db8d7f8c0b
SSDEEP

98304:v/M+dZZSK8hdw8wqxO0dGZeZOLQLtPeEdtcGbr/fBBz:JZSK8hd7NO0cZOqabhr/Lz

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/832-54-0x00000000002A0000-0x0000000001069000-memory.dmp	family_ytstealer
behavioral1/memory/832-57-0x00000000002A0000-0x0000000001069000-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/832-54-0x00000000002A0000-0x0000000001069000-memory.dmp	upx
behavioral1/memory/832-57-0x00000000002A0000-0x0000000001069000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

cmd.exe

pid	Process
1368	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

Processes:

malware_smoke_1674270581.exe

pid	Process
832	malware_smoke_1674270581.exe
832	malware_smoke_1674270581.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

malware_smoke_1674270581.execmd.exe

description	pid	Process	procid_target
PID 832 wrote to memory of 1368	832	malware_smoke_1674270581.exe	28
PID 832 wrote to memory of 1368	832	malware_smoke_1674270581.exe	28
PID 832 wrote to memory of 1368	832	malware_smoke_1674270581.exe	28
PID 1368 wrote to memory of 1712	1368	cmd.exe	30
PID 1368 wrote to memory of 1712	1368	cmd.exe	30
PID 1368 wrote to memory of 1712	1368	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\malware_smoke_1674270581.exe
"C:\Users\Admin\AppData\Local\Temp\malware_smoke_1674270581.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:832
- 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_1674270581.exe
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1368
- - C:\Windows\system32\choice.exe
    choice /C Y /N /D Y /T 0
    3⤵
    PID:1712

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/832-54-0x00000000002A0000-0x0000000001069000-memory.dmp

Filesize
13.8MB

Download
memory/832-57-0x00000000002A0000-0x0000000001069000-memory.dmp

Filesize
13.8MB

Download
memory/1368-55-0x0000000000000000-mapping.dmp

Download
memory/1712-56-0x0000000000000000-mapping.dmp

Download