Analysis

  • max time kernel
    41s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220715-en
  • resource tags

    arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
  • submitted
    12-08-2022 06:59

General

  • Target

    3D948E39198A851D73337EDE0025543F4833ECC0F8B88F61C5F4CE8EF643908F.exe

  • Size

    4.0MB

  • MD5

    c8285db83bfd7f5dec56f11b4686ed6c

  • SHA1

    46ff3a7cfbcd6a37ee30e22c363cfa57d98e333a

  • SHA256

    3d948e39198a851d73337ede0025543f4833ecc0f8b88f61c5f4ce8ef643908f

  • SHA512

    952a6c241662444dc1cd8dd116ff098cb17e700be7a8ea55d67f74d84c84cdf45579f35f2774992039a397353736e14ddea3f5d9906b6d4a48f78ca140375ff9

Malware Config

Signatures

  • YTStealer

    YTStealer is a malware designed to steal YouTube authentication cookies.

  • YTStealer payload 2 IoCs
  • UPX packed file 2 IoCs

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

  • Deletes itself 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3D948E39198A851D73337EDE0025543F4833ECC0F8B88F61C5F4CE8EF643908F.exe
    "C:\Users\Admin\AppData\Local\Temp\3D948E39198A851D73337EDE0025543F4833ECC0F8B88F61C5F4CE8EF643908F.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1112
    • 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\3D948E39198A851D73337EDE0025543F4833ECC0F8B88F61C5F4CE8EF643908F.exe
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1744
      • C:\Windows\system32\choice.exe
        choice /C Y /N /D Y /T 0
        3⤵
          PID:1464

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    1
    T1081

    Collection

    Data from Local System

    1
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1112-54-0x00000000010D0000-0x0000000001E98000-memory.dmp
      Filesize

      13.8MB

    • memory/1112-57-0x00000000010D0000-0x0000000001E98000-memory.dmp
      Filesize

      13.8MB

    • memory/1464-56-0x0000000000000000-mapping.dmp
    • memory/1744-55-0x0000000000000000-mapping.dmp