Malicious PDF — malware analysis report

Static analysis result for SHA-256 afc33a5f6b287c9e…

MALICIOUS

PDF

36.7 KB Created: 2021-05-20 14:37:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ee5bfee9af1855f101debd6e05324167 SHA-1: f13a6635ba1fd93d72b2a7c879cf9752aa3c200a SHA-256: afc33a5f6b287c9efa7c1c2a07afeddad9592b50843a66175990a2c38fd7a1f2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, masquerading as game hacks or generators to entice users. The document body and heuristics indicate a lure for free game items, which is a common social engineering tactic. The embedded URLs are designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9616

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/479516143/free-minecraft-windows-10-account-game-hack In PDF document text
    • https://www.sitiwebjoomla.it/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.sitiwebjoomla.it/images/free-robux-please_GM431946152.pdfIn PDF document text
    • https://www.sitiwebjoomla.it/images/coin-master-game-free_GM406889139.pdfIn PDF document text
    • https://www.sitiwebjoomla.it/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sitiwebjoomla.it/images/minecraft-free-trial_GM479516143.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_002_off00003433.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3433 25072 bytes
SHA-256: 4309a760de102540f07f983b40105a7d98859a68bbcfa4b573f31d39facf96dc
font_01_sfnt_off00006d0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0C 18664 bytes
SHA-256: 0667defd5b981729aa81a804935fb7ded52a2ddc2e462daaea0df5db4134a477

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