Malicious PDF — malware analysis report

Static analysis result for SHA-256 f84c509689666281…

MALICIOUS

PDF

29.9 KB Created: 2021-06-30 06:19:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fa999e1f64afff554b8d129f0b6b1531 SHA-1: 5fa563f20cb7faefb369b444db4c9984c5588fce SHA-256: f84c509689666281505df71066b0e2bd6ccf9b36c252f0e44ded9fa48145733d
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that are flagged as malicious redirectors, specifically targeting users interested in game hacks and generators for Roblox. The document body, though partially corrupted, contains references to these lures and embedded URLs. The primary function appears to be directing users to potentially malicious websites through these deceptive links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 3

  • 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.
  • 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 http://netcdn.co/app/431946152/iron-cheats-roblox-game-hack In PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-hack-no-survey_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/hacks-for-jailbreak-beta-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/hack-para-dragon-ball-rage-roblox-2021-pc_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/hexus-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/robux-sites_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/hack-roblox-200_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/pretty-cheat-codes-roblox-id_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-tankery-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-free-glasses_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/pokemon-brick-bronze-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-hack-roblox-accounts-abandon_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/t-shirt-for-roblox-free-shipping_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000322c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x322C 22908 bytes
SHA-256: f7adaeaba6430646c4ad2988d5295bed726caa4f72af05fd3c9bc70275005808

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