Malicious PDF — malware analysis report

Static analysis result for SHA-256 36f7fbbea3d5b5ed…

MALICIOUS

PDF

42.7 KB Created: 2021-05-15 04:01:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ddd47b5b814878bb8547edc7d02dd5bb SHA-1: e65997b42dd59f8e8a53c4f628956f6ad38c781b SHA-256: 36f7fbbea3d5b5edd6c069f7e1f141dcc85b55c8519f48108a19660fae2f0821
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators, as indicated by the document body and heuristic firings. It contains multiple links to known malicious redirector infrastructure, including https://netcdn.xyz/app/406889139/como-hackear-coin-master-2021-game-hack, which likely serves to obscure the final destination or deliver a secondary payload. The presence of numerous other PDF links suggests a broad campaign targeting users interested in game cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/como-hackear-coin-master-2021-game-hack In PDF document text
    • http://taxi-1411.de/images/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://taxi-1411.de/images/coin-master-game-android-free-download_GM406889139.pdfIn PDF document text
    • http://taxi-1411.de/images/roblox-tix-generator_GM431946152.pdfIn PDF document text
    • http://taxi-1411.de/images/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://taxi-1411.de/images/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://taxi-1411.de/images/minecraft-for-laptop-free_GM479516143.pdfIn PDF document text
    • http://taxi-1411.de/images/coin-master-hacks-for-gold-cards_GM406889139.pdfIn PDF document text
    • http://taxi-1411.de/images/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://taxi-1411.de/images/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://taxi-1411.de/images/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://taxi-1411.de/images/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
    • http://taxi-1411.de/images/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://taxi-1411.de/images/coun-master_GM406889139.pdfIn PDF document text
    • http://taxi-1411.de/images/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
    • http://taxi-1411.de/images/coin-master-free-shield_GM406889139.pdfIn PDF document text
    • http://taxi-1411.de/images/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://taxi-1411.de/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://taxi-1411.de/images/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://taxi-1411.de/images/coin-master-free-spins-ios-2021_GM406889139.pdfIn PDF document text
    • http://taxi-1411.de/images/coin-master-hack-free-spins_GM406889139.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_003_off00004ac4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AC4 25520 bytes
SHA-256: e6f584501ed9401e3187b5c30db82ded576f763cee859b7d9464aa35bf903d78
font_01_sfnt_off00008468.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8468 18380 bytes
SHA-256: 7d079b1918a151c222a156c250c5aa0e1b0afb08b6f17fdb7ccf3df79397c72b

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