Analysis

  • max time kernel
    121s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2024 19:00

General

  • Target

    PAYMENT RECEIPT_pdf.exe

  • Size

    901KB

  • MD5

    15c2b0ab767869aa66c0daac03a1fd85

  • SHA1

    a33914fc9800d4416b0181b0069bc38dbc842ffa

  • SHA256

    277d673f3d70278aac55dac83b12953e07b89d0364baa07ad38506d22fcc1b17

  • SHA512

    684d0dfd17f20ab04f9b46450f2ad1d19390166cf335536d93b3877e10c8841fc389955d68101c3bd434d0462cbd8a82e79b83533f0be594773f9cdf7beb6742

  • SSDEEP

    12288:Kc3kvKB/m4Zm9PFQcSLDwUwMMRNtJhm4fEKKHGQkOcV2S3u:Hs0m9NQcwYMst64sHGp4S

Malware Config

Extracted

Family

vipkeylogger

Credentials

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PAYMENT RECEIPT_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\PAYMENT RECEIPT_pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2580
    • C:\Users\Admin\AppData\Local\Temp\PAYMENT RECEIPT_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\PAYMENT RECEIPT_pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2488

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2488-14-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2488-17-0x0000000074B30000-0x000000007521E000-memory.dmp

    Filesize

    6.9MB

  • memory/2488-7-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2488-5-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2488-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2488-9-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2488-8-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2488-12-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2488-21-0x0000000074B30000-0x000000007521E000-memory.dmp

    Filesize

    6.9MB

  • memory/2488-18-0x0000000074B30000-0x000000007521E000-memory.dmp

    Filesize

    6.9MB

  • memory/2488-16-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2580-3-0x0000000074B30000-0x000000007521E000-memory.dmp

    Filesize

    6.9MB

  • memory/2580-0-0x0000000074B3E000-0x0000000074B3F000-memory.dmp

    Filesize

    4KB

  • memory/2580-1-0x0000000000D20000-0x0000000000E08000-memory.dmp

    Filesize

    928KB

  • memory/2580-2-0x0000000000AB0000-0x0000000000B28000-memory.dmp

    Filesize

    480KB

  • memory/2580-19-0x0000000074B3E000-0x0000000074B3F000-memory.dmp

    Filesize

    4KB

  • memory/2580-20-0x0000000074B30000-0x000000007521E000-memory.dmp

    Filesize

    6.9MB

  • memory/2580-4-0x0000000000220000-0x0000000000228000-memory.dmp

    Filesize

    32KB