Analysis

  • max time kernel
    60s
  • max time network
    190s
  • platform
    windows10-1703_x64
  • resource
    win10-20220718-en
  • resource tags

    arch:x64arch:x86image:win10-20220718-enlocale:en-usos:windows10-1703-x64system
  • submitted
    02/08/2022, 05:21

General

  • Target

    c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe

  • Size

    4.0MB

  • MD5

    27167814efa448fec2bbcf35991f5eca

  • SHA1

    85a1aae8faa4fbd0985fa357586b3c5bc4f4e3ab

  • SHA256

    c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8

  • SHA512

    3832c84b76db5404fb67b5d2c90c59a012dff4631bf9fa276879d11f65ecd14ed0b1b00af6d01eb3854279a874aca5e2d763ff6d316505e67276adc92232a85b

Malware Config

Signatures

  • YTStealer

    YTStealer is a malware designed to steal YouTube authentication cookies.

  • YTStealer payload 1 IoCs
  • UPX packed file 2 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe
    "C:\Users\Admin\AppData\Local\Temp\c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3944
    • 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\c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1780
      • C:\Windows\system32\choice.exe
        choice /C Y /N /D Y /T 0
        3⤵
          PID:344

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3944-114-0x0000000000C60000-0x0000000001A38000-memory.dmp

      Filesize

      13.8MB

    • memory/3944-117-0x0000000000C60000-0x0000000001A38000-memory.dmp

      Filesize

      13.8MB