ytstealer | 2083442c39a5b18594ea406d3dcb6178245ab8ac17fc781ae3c97d7f4600edc1

Analysis

max time kernel
53s
max time network
47s
platform
windows7_x64
resource
win7-20220414-en
submitted
26-06-2022 05:15

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General

Target

12345.exe
Size

4.0MB
MD5

71a463a7c5a39b3066baf48652462969
SHA1

c19b2ae85f4f00349327fb404190854704beec55
SHA256

2083442c39a5b18594ea406d3dcb6178245ab8ac17fc781ae3c97d7f4600edc1
SHA512

764471f66d7c6442ed2323288e29f202c72649c05f4a1ebc67cb9ddc745ce6f5beafc3aa97dce063c06f1d0a387d35b695bfbcac0d2bbcc982e1364b5cd5d1ca

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 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1944-54-0x00000000009D0000-0x0000000001798000-memory.dmp	family_ytstealer
behavioral1/memory/1944-55-0x00000000009D0000-0x0000000001798000-memory.dmp	family_ytstealer
behavioral1/memory/1944-58-0x00000000009D0000-0x0000000001798000-memory.dmp	family_ytstealer

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1944-54-0x00000000009D0000-0x0000000001798000-memory.dmp	upx
behavioral1/memory/1944-55-0x00000000009D0000-0x0000000001798000-memory.dmp	upx
behavioral1/memory/1944-58-0x00000000009D0000-0x0000000001798000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1964 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:

12345.exe

pid process

1944 12345.exe
1944 12345.exe

pid	process
1964	cmd.exe

pid	process
1944	12345.exe
1944	12345.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

12345.execmd.exe

description	pid	process	target process
PID 1944 wrote to memory of 1964	1944	12345.exe	cmd.exe
PID 1944 wrote to memory of 1964	1944	12345.exe	cmd.exe
PID 1944 wrote to memory of 1964	1944	12345.exe	cmd.exe
PID 1964 wrote to memory of 844	1964	cmd.exe	choice.exe
PID 1964 wrote to memory of 844	1964	cmd.exe	choice.exe
PID 1964 wrote to memory of 844	1964	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\12345.exe
"C:\Users\Admin\AppData\Local\Temp\12345.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1944
- 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\12345.exe
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1964
- - C:\Windows\system32\choice.exe
    choice /C Y /N /D Y /T 0
    3⤵
    PID:844

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/844-57-0x0000000000000000-mapping.dmp

Download
memory/1944-54-0x00000000009D0000-0x0000000001798000-memory.dmp

Filesize
13.8MB

Download
memory/1944-55-0x00000000009D0000-0x0000000001798000-memory.dmp

Filesize
13.8MB

Download
memory/1944-58-0x00000000009D0000-0x0000000001798000-memory.dmp

Filesize
13.8MB

Download
memory/1964-56-0x0000000000000000-mapping.dmp

Download