Malicious PDF — malware analysis report

Static analysis result for SHA-256 cabfe819a61b2c9e…

MALICIOUS

PDF

48.0 KB Created: 2021-06-04 03:16:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: a1bb0c15e8e297573786a9f507f34b38 SHA-1: ce31d35f88e38b299e873aa54aac371a2faf1f1b SHA-256: cabfe819a61b2c9e5410239d318ad44d3d1d83ab37d10aa13f2a8b06a83a9bcc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for a "game hack" which redirects to a malicious URL. While no scripts were directly extracted, the PDF structure and heuristics indicate it's designed to trick users into visiting a potentially malicious site. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/406889139/legit-coin-master-hack-october-2021-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-live_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-coin-master-androd-cheats-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-legit_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/game-give-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/mosttechs-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-without-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000528e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x528E 25556 bytes
SHA-256: 664b7d32594757b3688919139551eed0e45067e4b7f47f2dd275f10f9f1186c5
font_01_sfnt_off00008db8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DB8 2944 bytes
SHA-256: a0301b7f2c576e4a889a11eed4f4f7770c47239120b218cd3fd1d2cb36c2aaf5
font_02_sfnt_off000097e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97E1 18564 bytes
SHA-256: 56b4f24fc9847ca249e337f5cec44192b38f8002a6131b91275db6b901cbab0a

Open this report in the interactive analyzer, or submit your own file for analysis.