Malicious PDF — malware analysis report

Static analysis result for SHA-256 dac2ac391d9b451b…

MALICIOUS

PDF

32.6 KB Created: 2021-07-05 19:11:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: bf5c35fd620d44eeed87b0f7b5b454f0 SHA-1: ba9ce911f3784ff2360b2274b9e70c61e74e6898 SHA-256: dac2ac391d9b451ba9c65ea29e9d8e430069065c43120beedbf9dcd7e5b9932d
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 0.9824

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/wahoo-gaming-co-free-robux-game-hack PDF link annotation
    • http://librarystkippgribl.com/repository/free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/easy-points-gg_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/get-roebucks-com_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/free-roblox-codes-2021_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/free-spins-coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/free-rare-cards-for-coin-master-christmas_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/coin-master-daily-free-spins-link-today-blog_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/roblox-free-items-glitch_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_off000029df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29DF 21672 bytes
SHA-256: bff6b7948c305757d1bd930f0583789fe1a6a88edcea1f0d8d45e51eceb78768
font_01_sfnt_off0000597a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x597A 19460 bytes
SHA-256: 25181eaa6be0d5b476285318664890f4926978dca9587ea82b488640a0a05646

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