Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d2b414679cd5536…

MALICIOUS

PDF

35.1 KB Created: 2021-06-27 20:57:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1369f1a002998b2587545dbc7abc648c SHA-1: 110091028098ba6fe97874f587ddab07621d619c SHA-256: 9d2b414679cd553644faa46eceb0744bb347b66a4dc8191f9d8f6a252ffb3989
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a game hack redirector, specifically targeting users interested in 'free generators' for games like Roblox. The embedded URL, http://netcdn.co/app/431946152/make-a-free-roblox-account-game-hack, is the primary indicator of this lure. While no scripts were extracted, the document's structure and the nature of the lure suggest an attempt to drive users to a malicious site, likely for credential harvesting or further malware delivery.

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.co/app/431946152/make-a-free-roblox-account-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/treasure-hunter-simulator-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-roblox-gift-cards-that-can-be-used-unlimited-times_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-do-i-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-the-golden-tuxedo-for-free-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/get-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-stuff-on-roblox-ipad_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-gold_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/youtube-roblox-how-to-get-free-money-on-ro-citersenz_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-a-simple-way_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/can-pokemon-go-free-evolve-after-trade_GM1094591345.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-pet-snacks-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-glitch-ios_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/exploit-hacker-roblox_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/my/tasksIn 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_off00003210.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3210 22328 bytes
SHA-256: f5646db69f2e8eaebf3622db42a7847a4315f32851440276d7e29d10f06143ab
font_01_sfnt_off00006399.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6399 19260 bytes
SHA-256: 202a1ce112d9f8545653f065ef9500927df8dc508722a22ee8dfeaee0700e497

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