Malicious PDF — malware analysis report

Static analysis result for SHA-256 35a4fe27a77cdaac…

MALICIOUS

PDF

46.6 KB Created: 2021-06-09 03:56:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6f53f07b6d6b25501f59410fdd8917fa SHA-1: dfd4e3ff73fe1ea8d9f90c0d59ddf9aeeac4b244 SHA-256: 35a4fe27a77cdaacefb2286bb02d927a66f91776721ab1e98af3ffd51e54377c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, strongly suggesting a phishing or scam attempt. The primary lure is related to game hacks and free in-game items for popular games like Roblox and Coin Master. The embedded URLs point to suspicious domains that likely host malware or further phishing content. No scripts were extracted, but the PDF structure and embedded URIs indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9748

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.tw/app/431946152/free-hats-and-gear-roblox-game-hack PDF link annotation
    • http://library.futureuniversity.com/repository/free-robux-link_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/minecraft-pe-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-things-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-printable-roblox-images_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/tiktok-free-hearts-apk_GM835599320.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-free-spins-activegamer_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/fast-robux-online_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/easy-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-club-hack_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-images_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/hack-coin-master-dzooka_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://wolfzscriptsIn 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_off00004f3e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F3E 24884 bytes
SHA-256: 882d75fc8a0699d2414b50824d9b30b435bb15b684b2e9761fe0c82d8617ec97
font_01_sfnt_off000088e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88E3 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00009294.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9294 18456 bytes
SHA-256: 42ee4fae90019459592d4d0955150cbb2abd6cea9d2299884172e6a16f430ab2

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