Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d780b699fde8892…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 15:09:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c1b1d18cfc6549cc027423c9846ca606 SHA-1: c575a9fbc48de795627ccd1513b6fe5db207ca59 SHA-256: 3d780b699fde8892fbe6a2b675cbdd56164dc6e57de80b59e9585b696aea33ef
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to malicious redirectors, disguised as game hacks and cheats, which is a common lure for phishing or malware distribution. The primary redirector URL is http://netcdn.tw/app/406889139/free-daily-spins-from-coin-master-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a malicious intent to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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 http://netcdn.tw/app/406889139/free-daily-spins-from-coin-master-game-hack In PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-the-labyrinth-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-female-outfits-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/fre-robux-generetor_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/clients-minecraft_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/videos-de-como-ser-hacker-en-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/hack-into-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-cheat-codes-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-hugs-trailer-movie-oblivioushd-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/moonactive-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-4game-club-hack_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-fortnite-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-invisible-hack-cheat-engine_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/hack-bloxtube-beta-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/copychat-hack-roblox_GM431946152.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
font_00_sfnt_off0000305a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x305A 22788 bytes
SHA-256: 4e007a290f530643049212e0feef95340f9f4e012161a9091edfdb5bb7a7d588
font_01_sfnt_off00006371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6371 18856 bytes
SHA-256: d310d8b42a9db28f952d6c808dbfd2c0798e16e205ce104a4cdcfe428c53c924

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