Malicious PDF — malware analysis report

Static analysis result for SHA-256 70c882b38f88df1f…

MALICIOUS

PDF

33.9 KB Created: 2021-07-04 12:53:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: aa3ffb63a953e0be51e9d2644ae55587 SHA-1: 24f9055d25933b886dd977572503ed364e998c92 SHA-256: 70c882b38f88df1fa26fb0291e94ed3c0f740282cb4f8207a184db43857f809c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic indicating it links to a game hack redirector, specifically pointing to 'http://netcdn.tw/app/406889139/blogspot-coin-master-game-hack'. The document body also contains this URL and other similar lures for game-related cheats and hacks. This suggests a social engineering attack to trick users into visiting a potentially malicious site.

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/406889139/blogspot-coin-master-game-hack PDF link annotation
    • http://lib.fekon.untad.ac.id/repository/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-lucky-block-battlegrounds-cheats_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/hack-meme-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-20219-robux-hack_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/top-5-free-robux-websites_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/hack-for-roblox-piano_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-jailbreak-money-hack-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-hack-mod-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-roblox-cards-pin-number-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/hackear-prison-life-roblox-2021-pc_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-no-inspect-no-info_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/infinite-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/script-hack-roblox-phantom-forces_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-free-robux-no-nothing_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_off00002f5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F5D 22460 bytes
SHA-256: ccafc196becae8f9ba11953e8ce8513f2f6ab22db65ca2f5ccfe7dbec228df58
font_01_sfnt_off0000618d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x618D 18300 bytes
SHA-256: 40f16c618a4a1297161766cb49630bde315cdefb1dfc8ebde5bfeb3ff96f8827

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