Malicious PDF — malware analysis report

Static analysis result for SHA-256 be33eefe37daae83…

MALICIOUS

PDF

45.5 KB Created: 2021-05-10 14:02:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 32a32b9af454cc2720292276eef830a7 SHA-1: a0b5a93126c8959c7d219106017df8a7e5801b62 SHA-256: be33eefe37daae830572d350b15620df0994b98e9e0883530e1cd5755a3be887
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a known malicious infrastructure, specifically advertising free game hacks and generators. The document body, though partially corrupted, contains references to these lures and includes URLs pointing to potentially malicious content. The presence of multiple redirector links and the ML classifier's high confidence score indicate a malicious intent to direct users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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-client-game-hack In PDF document text
    • http://perpus.wdh.ac.id//repository/ios-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/games-in-roblox-that-give-you-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/latest-free-spin-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-heaven-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/abd-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/collect-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/games-for-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/minecraft-hacks-xbox_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/giftrobux-com-generator_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/how-to-get-free-minecoins-in-minecraft_GM479516143.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_off00004b7d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B7D 25312 bytes
SHA-256: 9da768e265363e09ec3dd224aef2301cd779e641f134bda634c05e1059da52e2
font_01_sfnt_off000085c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85C5 3348 bytes
SHA-256: 8ad51e26be2bf3e724ccc84eab924402c5135b83c0b59e76e00dc91dfd9ffee8
font_02_sfnt_off0000914b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x914B 17644 bytes
SHA-256: ce5b71cd939a97bbe405c9e475902c75b00f7b9e8e716883d10cd93b76626efe

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