Malicious PDF — malware analysis report

Static analysis result for SHA-256 c210eacea82b7641…

MALICIOUS

PDF

46.6 KB Created: 2021-06-04 02:42:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 69b895829a78202ef8aaf71226ecf543 SHA-1: a2674a0a8c39a5609f0b1a18084e3f92b56c20d0 SHA-256: c210eacea82b7641f954acd3e593076e65da8f96ea819f2f5c9d97a64014ba2e
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 0.9832

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/479516143/minecraft-realms-free-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/roblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-strategy_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-using-cheat-engine_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/teach-me-to-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-group_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-roblox-injector_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-fan-page_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-progamers_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-codes-no-verification_GM431946152.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/roblox-avatar-tester_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-pe-free-apk_GM479516143.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
stream_004_off0000523c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x523C 29584 bytes
SHA-256: ace7e2ef08951c1a2813db8450cc2185aa037d2ff15979a7c6535c3ae243620b
font_01_sfnt_off0000955e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x955E 17900 bytes
SHA-256: badbc394cd8954733b164be5cc8c6ff402afbb9d7774d644eb4a8191a91f4c18

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