ytstealer | d66c835ffce7413ed28d1252c814787083aab6fcdc20df38120b5da13991f9c3

Analysis

max time kernel
8s
max time network
46s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
12-08-2022 07:14

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General

Target

D66C835FFCE7413ED28D1252C814787083AAB6FCDC20DF38120B5DA13991F9C3.exe
Size

4.0MB
MD5

808d028a359d6ff9668e4881fdb28042
SHA1

1fec4d3e24d6e54d24b0d716afa7e6435cd92f37
SHA256

d66c835ffce7413ed28d1252c814787083aab6fcdc20df38120b5da13991f9c3
SHA512

b829c4ab50c5fb0b763b7f8059f062ceec19b78d2f72999cc3876fd038b1249df256a243e661070a5cc047267b5df711d03dc8f959ba1fa56fe6435d86a031e3

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/988-54-0x00000000000B0000-0x0000000000E79000-memory.dmp	family_ytstealer
behavioral1/memory/988-57-0x00000000000B0000-0x0000000000E79000-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/988-54-0x00000000000B0000-0x0000000000E79000-memory.dmp	upx
behavioral1/memory/988-57-0x00000000000B0000-0x0000000000E79000-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 2 IoCs

Processes:

D66C835FFCE7413ED28D1252C814787083AAB6FCDC20DF38120B5DA13991F9C3.exe

pid	process
988	D66C835FFCE7413ED28D1252C814787083AAB6FCDC20DF38120B5DA13991F9C3.exe
988	D66C835FFCE7413ED28D1252C814787083AAB6FCDC20DF38120B5DA13991F9C3.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

D66C835FFCE7413ED28D1252C814787083AAB6FCDC20DF38120B5DA13991F9C3.execmd.exe

description	pid	process	target process
PID 988 wrote to memory of 1880	988	D66C835FFCE7413ED28D1252C814787083AAB6FCDC20DF38120B5DA13991F9C3.exe	cmd.exe
PID 988 wrote to memory of 1880	988	D66C835FFCE7413ED28D1252C814787083AAB6FCDC20DF38120B5DA13991F9C3.exe	cmd.exe
PID 988 wrote to memory of 1880	988	D66C835FFCE7413ED28D1252C814787083AAB6FCDC20DF38120B5DA13991F9C3.exe	cmd.exe
PID 1880 wrote to memory of 1212	1880	cmd.exe	choice.exe
PID 1880 wrote to memory of 1212	1880	cmd.exe	choice.exe
PID 1880 wrote to memory of 1212	1880	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\D66C835FFCE7413ED28D1252C814787083AAB6FCDC20DF38120B5DA13991F9C3.exe
"C:\Users\Admin\AppData\Local\Temp\D66C835FFCE7413ED28D1252C814787083AAB6FCDC20DF38120B5DA13991F9C3.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:988

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\D66C835FFCE7413ED28D1252C814787083AAB6FCDC20DF38120B5DA13991F9C3.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:1880

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
3⤵
PID:1212

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/988-54-0x00000000000B0000-0x0000000000E79000-memory.dmp

Filesize
13.8MB

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memory/988-57-0x00000000000B0000-0x0000000000E79000-memory.dmp

Filesize
13.8MB

Download
memory/1212-56-0x0000000000000000-mapping.dmp

Download
memory/1880-55-0x0000000000000000-mapping.dmp

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