Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f3414ceb0a28f35…

MALICIOUS

PDF

44.3 KB Created: 2021-06-11 04:14:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 69694d019e35436b0b8deeca325e34f6 SHA-1: ac493743f82baa96355bc5c8e67191ac6ef0374d SHA-256: 8f3414ceb0a28f357b9117422a29a621a52b2afba6b79a5c570ed39808abb277
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lure users with promises of free game currency ('Robux') and hacks. The primary link directs to a URL associated with game hacks, indicating a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially malicious sites.

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.tw/app/431946152/how-to-get-free-robux-on-computer-fast-2021-game-hack PDF link annotation
    • http://loriginedupain.org/images/minecraft-114-4-download_GM479516143.pdfIn PDF document text
    • http://loriginedupain.org/images/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • http://loriginedupain.org/images/minecraft-pocket-edition-free-apk_GM479516143.pdfIn PDF document text
    • http://loriginedupain.org/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/robux-no-survey_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-homepage_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://loriginedupain.org/images/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://loriginedupain.org/images/free-robux-co_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-hack-apk-ios_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005093.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5093 23968 bytes
SHA-256: 46898ac4e9fcec700b941dbedc085c4563ae8ea1a6d082ab229678c5d22230d7
font_01_sfnt_off0000875b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x875B 19348 bytes
SHA-256: 184609fc1311611278736905aa963d213afb6b1ea7136d474f3ee5761a32e427

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