ytstealer | 81a5a53697afc28cac33953edb5825c4efb8688ea08432f97b69e8350d98dcc5

Analysis

max time kernel
48s
max time network
53s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
30/08/2022, 02:04

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General

Target
81a5a53697afc28cac33953edb5825c4efb8688ea08432f97b69e8350d98dcc5.exe
Size 4.0MB
Sample220830-chsspsaccr
SHA256 81a5a53697afc28cac33953edb5825c4efb8688ea08432f97b69e8350d98dcc5
MD5 f16d761675564d1e9c1ce2feafa5068f
SHA1 2efd0c973f27fe19b680cc0a43708375f2e1f54f
SHA512 29046a24b7aa058943e900c0dc026453ecae70974e7c849dafad4c0931d89ea0653011b2a45348f8d82cab81addf3351295b55c1ca8ffaf1558dc03510dc5b2f
SSDEEP 98304:8AD7WhnLXPdp/30Y8L01xkXXlyp1VB8LExTZAHnQz8:8DVPdp/30Y8DXEp138gxaHQz8
MD5 SHA1 SHA512 SSDEEP

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

resource	yara_rule
behavioral1/memory/544-54-0x00000000008F0000-0x00000000016B9000-memory.dmp	family_ytstealer
behavioral1/memory/544-57-0x00000000008F0000-0x00000000016B9000-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/544-54-0x00000000008F0000-0x00000000016B9000-memory.dmp	upx
behavioral1/memory/544-57-0x00000000008F0000-0x00000000016B9000-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

pid	Process
544	81a5a53697afc28cac33953edb5825c4efb8688ea08432f97b69e8350d98dcc5.exe
544	81a5a53697afc28cac33953edb5825c4efb8688ea08432f97b69e8350d98dcc5.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 544 wrote to memory of 1760	544	81a5a53697afc28cac33953edb5825c4efb8688ea08432f97b69e8350d98dcc5.exe	28
PID 544 wrote to memory of 1760	544	81a5a53697afc28cac33953edb5825c4efb8688ea08432f97b69e8350d98dcc5.exe	28
PID 544 wrote to memory of 1760	544	81a5a53697afc28cac33953edb5825c4efb8688ea08432f97b69e8350d98dcc5.exe	28
PID 1760 wrote to memory of 1920	1760	cmd.exe	30
PID 1760 wrote to memory of 1920	1760	cmd.exe	30
PID 1760 wrote to memory of 1920	1760	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\81a5a53697afc28cac33953edb5825c4efb8688ea08432f97b69e8350d98dcc5.exe
"C:\Users\Admin\AppData\Local\Temp\81a5a53697afc28cac33953edb5825c4efb8688ea08432f97b69e8350d98dcc5.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:544
- 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\81a5a53697afc28cac33953edb5825c4efb8688ea08432f97b69e8350d98dcc5.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1760
- - C:\Windows\system32\choice.exe
    choice /C Y /N /D Y /T 0
    3⤵
    PID:1920

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/544-54-0x00000000008F0000-0x00000000016B9000-memory.dmp

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memory/544-57-0x00000000008F0000-0x00000000016B9000-memory.dmp

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