PDF malware analysis — malicious · b0b6c838286b40e0

MALICIOUS

PDF

46.3 KB Created: 2021-05-31 03:34:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 6725729d779fb1e44c93433a4b13a2bd SHA-1: cbd005a3ba0457894750e0d1258163da5928c9fc SHA-256: b0b6c838286b40e052c30ca0a7789b56af3e26cdb7cb145ae6ae8d953cd4c5d6

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a lure for 'free Robux' and game hacks, indicating a phishing or scam attempt. The primary malicious URL identified is https://netcdn.xyz/app/431946152/free-robux-no-verify-game-hack, which likely serves as a redirector to a malicious site or a payload download. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest potential for JavaScript execution to facilitate the malicious redirection.

Machine Learning

Nyx PDF Classifier malicious score 0.9619

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/431946152/free-robux-no-verify-game-hack PDF link annotation
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/coin-master-free-spin-codes_GM406889139.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/roblox-com-free-robux_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-2021-easy_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/how-to-get-minecraft-for-free-on-chromebook_GM479516143.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/free-tiktok-likes-without-verification_GM835599320.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-minecraft-codes_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-tiktok-accounts-and-passwords_GM835599320.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-tiktok-accounts-with-followers_GM835599320.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/how-to-download-minecraft-for-free-on-mac_GM479516143.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/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-robux-generator-for-kids_GM431946152.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/how-to-hack-peoples-roblox-accounts_GM431946152.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/real-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/minecraft-windows-10-free_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/free-minecraft-website_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-robux-not-fake_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.

Filename	Kind	Source	Size
`stream_003_off0000573b.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x573B	25120 bytes
SHA-256: `9b35f53b20f5f6fc80723c02a850f15c80f3612520781a78a0bb8675535d442e`
`font_01_sfnt_off000091ae.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x91AE	18448 bytes
SHA-256: `c82a2e535d1b02ce633786be567827726fc21df48f71ae9cb05a1d9866072f5e`

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