Malicious PDF — malware analysis report

Static analysis result for SHA-256 d96f5c508e061f05…

MALICIOUS

PDF

45.5 KB Created: 2021-05-12 04:32:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 1a9a012f9943d54ff8f8980d56332360 SHA-1: e7b854e15223a2d073fe26a5b971b12d236b3711 SHA-256: d96f5c508e061f05ef0f18fdf471cac92dcbf71b9de3b23fc924cdfb2f8b5afa
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document employs social engineering by presenting itself as a 'hack' for a popular game, aiming to trick users into clicking malicious links. The document contains multiple embedded URLs that lead to sites promising game hacks or generators, and one heuristic specifically flags it as a 'Browser extension / update installation lure'. This suggests the primary goal is to redirect the user to a site that will likely host a malicious download or exploit. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

Heuristics 5

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.xyz/app/406889139/hack-coin-master-app-game-hack PDF link annotation
    • http://www.vetmed.fkh.unair.ac.id/repository/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/how-to-hack-coin-master-with-root_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/coin-master-game-hack-apk_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/free-coin-master-spins-links-2021_GM406889139.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/can-you-give-me-robux_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/how-many-villages-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/mathep_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/lucky-patcher-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/free-robux-kid-friendly_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_003_off00004bfc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BFC 24612 bytes
SHA-256: 76f09741753921a0dc83310efbfa49555b2521666cbf827d5c985bdc970b5c3f
font_01_sfnt_off000083bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83BD 3560 bytes
SHA-256: c953d730e49f69c7d62e02a926729ae4a31de13d9a976dc4a95b39cf47066c93
font_02_sfnt_off00009043.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9043 17892 bytes
SHA-256: 9c4dada9bbcb376b19026f9d82cd29b1bcb88de2b1ea71a23b293af0df71213a

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