Analysis

  • max time kernel
    27s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    12-08-2022 07:03

General

  • Target

    6C21057B47F4B84990AAE1A7039621FC3C0BDEBDBE3EA2685B6D1F15134CB068.exe

  • Size

    4.0MB

  • MD5

    5b07b328013bb904ffbd6aff6032ec74

  • SHA1

    347bd61eb0fd12bee4990e234b848a4a936a72b8

  • SHA256

    6c21057b47f4b84990aae1a7039621fc3c0bdebdbe3ea2685b6d1f15134cb068

  • SHA512

    55e15259da0a06d311821a7cc88079bdc6ac23567e42c4348509846faa56e29b812845ddac7124b29db45409856d7f132a8ed0ec7b2cccf1f4f846c1e37dfe23

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\6C21057B47F4B84990AAE1A7039621FC3C0BDEBDBE3EA2685B6D1F15134CB068.exe
    "C:\Users\Admin\AppData\Local\Temp\6C21057B47F4B84990AAE1A7039621FC3C0BDEBDBE3EA2685B6D1F15134CB068.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1092
    • 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\6C21057B47F4B84990AAE1A7039621FC3C0BDEBDBE3EA2685B6D1F15134CB068.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1504
      • C:\Windows\system32\choice.exe
        choice /C Y /N /D Y /T 0
        3⤵
          PID:1924

    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/1092-54-0x0000000000110000-0x0000000000ED9000-memory.dmp
      Filesize

      13.8MB

    • memory/1092-57-0x0000000000110000-0x0000000000ED9000-memory.dmp
      Filesize

      13.8MB

    • memory/1504-55-0x0000000000000000-mapping.dmp
    • memory/1924-56-0x0000000000000000-mapping.dmp