PDF malware analysis — malicious · 8598443be9e0740d

MALICIOUS

PDF

48.3 KB Created: 2021-06-03 09:50:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 12530909d7ab77420a9d499884a7d19f SHA-1: 85f27879117be0220072f16872688613fe90338a SHA-256: 8598443be9e0740d7e96d05a2a010e43e2c375058001052115d9540c244cc914

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure related to free game hacks and currency, directing users to the URL https://netcdn.online/app/431946152/how-to-change-your-name-in-roblox-for-free-game-hack. This URL is associated with a high-severity heuristic for game hack redirects. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or redirection attack, likely intended to lead users to a malicious site for further exploitation or credential harvesting.

Machine Learning

Nyx PDF Classifier malicious score 0.9796

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.online/app/431946152/how-to-change-your-name-in-roblox-for-free-game-hack PDF link annotation
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-free-spins-link-2021-twitter_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-tiktok-likes-no-human-verification-or-download_GM835599320.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/www-robux-us_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/freespinandcoin-blogspot-coin-master_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-robux-images_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-online-hack-tool_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/doctor-louie-roblox_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/roblox-hack-ios_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/rich-free-roblox-accounts_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000051ff.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x51FF	25868 bytes
SHA-256: `d8b0ca5dbd25c2fb9bbc6bda3ddc722d6fe008f34d5f6b585f1bf2fecd33bc85`
`font_01_sfnt_off00008c0e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C0E	3120 bytes
SHA-256: `17b61f56bec6a4dd1640e69a7fe4dc235608b81b7bf8dd33342d05a77ea0529c`
`font_02_sfnt_off000096ef.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x96EF	19356 bytes
SHA-256: `f5fa8051516efdb430215c32221800eb8c82dc03f6476ac338efe693dcbf881c`

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