Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e74fa3fd34bcde0…

MALICIOUS

PDF

44.3 KB Created: 2021-06-03 20:30:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 92c0889e2332f82ca943f3fcb9b84e21 SHA-1: 196d586b149282c1b63a9348be05d0d929fafdb8 SHA-256: 0e74fa3fd34bcde0fe5e82390373d2784bd3441980130d83cbde8ff1b1f22ee6
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 0.9865

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/play-minecraft-for-free-game-hack PDF link annotation
    • http://perpus.unpam.ac.id/repository/pubg-uc-770_GM1330123889.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/i-want-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/robux-sign_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-34-5-hack_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-get-free-roblox-items_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/master-coin-free_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-free-coins-today_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-get-free-robux-without-verification_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
stream_004_off0000512d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x512D 26584 bytes
SHA-256: d59bb089e62ecc7c28e331c12a6eaa7c2bf4ea99395a7cf8f969ee01fe133a68
font_01_sfnt_off00008b29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B29 18116 bytes
SHA-256: 58506b39f0592aa293a22e76cdd5d8324130a94bf097dc81d26ff216ea8060f4