Malicious PDF — malware analysis report

Static analysis result for SHA-256 74a3d95401a2ae1e…

MALICIOUS

PDF

42.8 KB Created: 2021-05-13 14:12:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 196ce97df8cbf5fdda58501353db4d1f SHA-1: 7ea339a6d4b39e0db015803f82aef498baf48aeb SHA-256: 74a3d95401a2ae1ec0137e74fa9024cdf4e6f6d98590b9d5442bd75ce38854db
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector pointing to 'coin-master-hack-apk-download-latest-version-game-hack'. This lure, combined with a visual download button heuristic, suggests the document is designed to trick users into visiting malicious sites, likely to download further malware. No scripts were extracted from this sample, limiting the analysis of its execution flow.

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/coin-master-hack-apk-download-latest-version-game-hack In PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-more-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-spins-app-for-iphone_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/hack-the-coin-master-game_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/minecraft-ore-finder-mod_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/free-online-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/coin-master-hacks_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/coin-master-attack-block-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/best-tricks-co-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/www-robux-com_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/coin-master-hack-online-android_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_off00004ae2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AE2 25220 bytes
SHA-256: e8ca641d960ad14deb39995493e77e8335c3c790e5079f4bff083d25446da33b
font_01_sfnt_off000083a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A4 18608 bytes
SHA-256: a4e47816b5170685e7869daf89b86d4021f47da3ee65e903ef7401822799ffdd

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