Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d384eaeb866ea2e…

MALICIOUS

PDF

34.9 KB Created: 2021-07-04 09:30:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: ad7312619538aa110fbbaa04a2fb4037 SHA-1: 389e74b308af211daea6056c15793c4b8e834e32 SHA-256: 2d384eaeb866ea2e2571efc5aa09c7ce8d1dfddf423e2ea2072e4ebbdf67e8db
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and cheats, specifically mentioning Minecraft and Robux. It contains multiple links to external websites, with the primary malicious URL being http://netcdn.tw/app/479516143/minecraft-apk-free-download-game-hack. The presence of embedded URLs and a heuristic indicating a 'free generator / game hack' redirector strongly suggests a phishing or malware distribution attempt. No scripts were extracted, but the document's structure and linked content point towards a social engineering tactic to trick users into downloading potentially malicious software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/479516143/minecraft-apk-free-download-game-hack PDF link annotation
    • http://elib.upiyptk.ac.id/opac/repository/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/roblox-black-panther-shirt-free_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/free-robux-no-download-no-hack_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/robux-sites_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/roblox-how-to-get-free-clothes-on-ipad_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/how-to-gift-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/free-roblox-redeem-codes-that-havent-been-used_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/minecraft-creative-mode-free_GM479516143.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/robloxcom-download-free-pc_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/pubg-uc-shop-pakistan_GM1330123889.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/get-more-robux_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_off000031dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31DD 22628 bytes
SHA-256: 2ea2d76dd7a2290031b273ed74b9a2c593af632b5149f5567a96afac62decd9c
font_01_sfnt_off000063ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63EF 18924 bytes
SHA-256: 1de344d99f1e631699adb44c0f23fb2d6ffa0cf287341dc691753e7d540fe775

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