Malicious PDF — malware analysis report

Static analysis result for SHA-256 d062a5a0cd714c8e…

MALICIOUS

PDF

44.5 KB Created: 2021-05-15 23:30:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a3a987c0154691ada0552d8e7a5face4 SHA-1: 7c00d5f95bb582adce2837d0d7defa14d3732a72 SHA-256: d062a5a0cd714c8efb27bb59cae0a4f5ddfc378f5f7cee26844d69691a75e434
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a document body that explicitly mentions game hacks and links to external websites. The ML classifier also flagged this PDF as malicious. The presence of these elements suggests the document is a lure to direct users to potentially malicious sites for game-related exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/406889139/coin-master-coin-link-game-hack In PDF document text
    • http://library.yamasi.ac.id//repository/robuxhub-net_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-hack-tool-for-pc_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/when-was-minecraft-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-roblox-boy-hair_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-roblox-groups_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/gaming-dunia-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/what-is-wurst_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a2f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A2F 24788 bytes
SHA-256: 87755ef1b1fdfe4fb08ed10ae022c25077f918f9255c6d20c7b704ada6503f5c
font_01_sfnt_off00008317.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8317 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008cc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CC8 17716 bytes
SHA-256: 6b6be525affa70ffc107ac4c88dd9d04ef97920621a7989faf1a85e6391895c0

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