Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4abda100a494193…

MALICIOUS

PDF

40.7 KB Created: 2021-05-02 06:40:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 2643101bbd94bf49f00eabd327f98b98 SHA-1: f30b2e052a6b1ad8b21f08cdbe08a351e6eddbe0 SHA-256: f4abda100a494193f3ba1565efc0a0a3b3a20aa328be91bb95415ca7bd3b076b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'Free Robux' and redirects users to a malicious URL. The ML classifier strongly indicates maliciousness, and the presence of multiple embedded URLs pointing to similar scam content reinforces this. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to drive users to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/431946152/free-robux-and-tickets-game-hack PDF link annotation
    • http://wattkit.com/images/roblox-free-roblox-generations.pdfIn PDF document text
    • http://wattkit.com/images/roblox-hack-diamond.pdfIn PDF document text
    • http://wattkit.com/images/free-robux-codes-no-verification-no-survey.pdfIn PDF document text
    • http://wattkit.com/images/roblox-script-greenwood-town-free-vampire.pdfIn PDF document text
    • http://wattkit.com/images/roblox-mad-paintball-hack.pdfIn PDF document text
    • http://wattkit.com/images/how-to-get-free-robux-on-roblox-no-human-verification.pdfIn PDF document text
    • http://wattkit.com/images/roblox-zombie-rush-hacks.pdfIn PDF document text
    • http://wattkit.com/images/comment-avoir-des-free-robux.pdfIn PDF document text
    • http://wattkit.com/images/google-only-roblox-free.pdfIn PDF document text
    • http://wattkit.com/images/free-items-on-roblox-names.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003ee2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3EE2 27084 bytes
SHA-256: 2cef14378695e897fa25711d66d4c79f8c9fe1e2ffc9d87621c2febbdbb51201
font_01_sfnt_off00007c63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C63 18580 bytes
SHA-256: 19c355051c3489fb446f547002e5f118053d9a5821bb5ca8bbf7edb4f249efcf

Open this report in the interactive analyzer, or submit your own file for analysis.