Analysis

  • max time kernel
    43s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    12/07/2022, 02:07

General

  • Target

    1f8e32633f1f438d64e2c74e0b3867d2bdbca53d1aa2ab01735f9c6eec2ff3c0.exe

  • Size

    4.0MB

  • MD5

    a376e47a9a7a36ad3d6c3f0bcfac8b7c

  • SHA1

    e68b5e93ecffa94af12750f00ab801940c841137

  • SHA256

    1f8e32633f1f438d64e2c74e0b3867d2bdbca53d1aa2ab01735f9c6eec2ff3c0

  • SHA512

    835fa61bdb643e73c57e44a0bfbe7501a5734c2dd1b0afbcf7a54898b08c7007b9d0ad1cca280552aecd344e0da69461db136ad9afb3d7d3063ebd0dd977c359

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.

  • 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\1f8e32633f1f438d64e2c74e0b3867d2bdbca53d1aa2ab01735f9c6eec2ff3c0.exe
    "C:\Users\Admin\AppData\Local\Temp\1f8e32633f1f438d64e2c74e0b3867d2bdbca53d1aa2ab01735f9c6eec2ff3c0.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1632
    • 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\1f8e32633f1f438d64e2c74e0b3867d2bdbca53d1aa2ab01735f9c6eec2ff3c0.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:812
      • C:\Windows\system32\choice.exe
        choice /C Y /N /D Y /T 0
        3⤵
          PID:432

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1632-54-0x0000000000010000-0x0000000000DD9000-memory.dmp

      Filesize

      13.8MB

    • memory/1632-57-0x0000000000010000-0x0000000000DD9000-memory.dmp

      Filesize

      13.8MB