Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ea278d5f9bef1b8…

MALICIOUS

PDF

34.3 KB Created: 2021-07-05 18:56:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: dccc3a929eaff3a293eeb4c30e1d6d19 SHA-1: ab7dbc9e1535c0a30b06f6660fa74e07c564aeb9 SHA-256: 2ea278d5f9bef1b87fca04d2ba88e27e7b010dd4c89745f654d028e949b24c43
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/how-to-hack-roblox-to-get-robux-2021-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-longest-super-fun-obby-cheats_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-free-robux-obc-codes_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-spins-coin-master-links-thursday-november-28-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/new-roblox-promo-codes-unlimited-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-robux-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/c00lkidd-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hack-roblox-safe-way_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/http-blackgamesus-coinmasterhack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-robux-hack-lonks_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-and-tix-november-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-robux-app-no-hack-or-cheat_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-daily-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-police-uniform_GM431946152.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
font_00_sfnt_off00002f0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F0A 22100 bytes
SHA-256: 74eeaf4b3c6059e622c914957ba0443753594fc6de97b7b93c1da7c82aaf5569
font_01_sfnt_off00005fdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDC 19280 bytes
SHA-256: 84873c5a159ca1a6348908ce819d19965338d21a78c72428b2feee677f5fd63a

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