Malicious PDF — malware analysis report

Static analysis result for SHA-256 192c949fb9b158d7…

MALICIOUS

PDF

42.4 KB Created: 2021-05-30 12:35:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7c8d2ba2cebbfca9f44bdf08a2442e67 SHA-1: 794498b3af29283eb77e3678dc227009f35ef4a0 SHA-256: 192c949fb9b158d7156437c92c56274e2a71d09818878ef81e8e0eae48bdbc2e
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 'free generator / game hack' redirector. The document body and extracted URLs reinforce this, pointing towards lures for game-related cheats or currency. While no scripts were explicitly extracted, the PDF format itself can embed JavaScript, and the overall pattern suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

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.xyz/app/406889139/free-spins-coin-master-app-game-hack PDF link annotation
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/minecraft-free-download_GM479516143.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-minecraft-website_GM479516143.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/tiktok-likes-for-free_GM835599320.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-robux-group_GM431946152.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-likes-for-tiktok_GM835599320.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-tiktok-accounts-with-followers_GM835599320.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-minecraft-pe-server_GM479516143.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_003_off000049d7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49D7 25200 bytes
SHA-256: 41373281bd322d067e3cc977493d20881cb1e4614c80e21af5c44e355a3f8f1a
font_01_sfnt_off00008463.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8463 17884 bytes
SHA-256: ed1ea3c4e7635b9f65a5e0b6798c92341d7c1feababf17669f4466b6be8364ea

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