Malicious PDF — malware analysis report

Static analysis result for SHA-256 9aaaf2e9c721415f…

MALICIOUS

PDF

35.1 KB Created: 2021-07-06 09:32:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 0ccf1e7a27cb7dc97b7cf2ee2193a9c9 SHA-1: 8d745c496516a449de2325702bdd2279c66b97d3 SHA-256: 9aaaf2e9c721415f8a4ea9f865215bf93b56ce4b79978125f2a7d3b4a54458ba
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/free-roblox-accounts-with-robux-2021-game-hack PDF link annotation
    • http://perpus.stmik-im.ac.id/repository/urbis-roblox-money-cheat_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-avatar-free_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-outfits-girl-free_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/apps-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-items-robloxcom_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-roblox-sigh-in_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-free-stuff-on-roblox-mobile-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-roblox-account-getter-v3rmillion_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/exploit-for-anti-hack-games-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/khaos-robux-hack_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-hack-xyz-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-hack-mad-city-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-cool-free-avatars_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-hack-accounts-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-spins-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/hack-para-tener-robux-2021-julio_GM431946152.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4F 22652 bytes
SHA-256: cb914f7e84a9c1380d3c791ee8bc6760ae3a1db6ea75506978262212a0267865
font_01_sfnt_off000061ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61EF 19780 bytes
SHA-256: 25192f6a53e08aa9ffc26a88a4bc642b185baba041384cccd6a0910bb22c1d67

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