Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d2512c70d984875…

MALICIOUS

PDF

47.0 KB Created: 2021-06-03 14:49:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3ab83e007c7714210db24e410a3784f6 SHA-1: eed0f067dff1123f1e6a5d9894d8bcd95c8a2bd9 SHA-256: 3d2512c70d9848755bedfd9c18ac93c88e0c56db14a7148298315ccfbf5079a1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to known malicious redirectors, specifically advertising a 'game hack generator' for Coin Master. The embedded URL 'https://netcdn.online/app/406889139/coinmasterfree-game-hack' is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and appears to be a lure for users seeking in-game advantages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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.online/app/406889139/coinmasterfree-game-hack In PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-get-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/robloxfun-com-generator_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/irobux-com-redeem_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/mcpe-optifine_GM479516143.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/pasos-para-hackear-coins-master_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/free-spin-links-coin-master-october-30-2021_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-get-java-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/minecraft-tools_GM479516143.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000527f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x527F 24300 bytes
SHA-256: d9774bb9be7652f5070a2d776d0ec88df63b9ae02fb18d67628ea56a035fd9fb
font_01_sfnt_off000089ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89EE 3560 bytes
SHA-256: 9d03f7c6c62ba3e7fdc0441e9d982a863b2b60b781165d6920512f68ecc4a440
font_02_sfnt_off00009674.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9674 17808 bytes
SHA-256: ed5fdd5441acd06a3bb02758ac945137dbfa7be696a0962169bf0eb95ec74bb8

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