PDF malware analysis — malicious · 01fb35cf06d4de5d

MALICIOUS

PDF

55.0 KB Created: 2021-05-13 21:00:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 598a66d8897b7183cb8b553a8cbfb846 SHA-1: d9edb83f354033fdeb546df18b9f2e6ac9e33cf0 SHA-256: 01fb35cf06d4de5dcbc8d36f03bb472b931bd8bb4e3c8be267846652691cbb86

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a high-severity heuristic indicating it links to a 'free generator / game hack' redirector, specifically pointing to a URL related to free Robux. This lure is designed to trick users into visiting a potentially malicious website. The ML classifier also flagged the PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9515

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/websites-that-give-free-robux-game-hack PDF link annotation
- https://www.cgalgeria-dubai.com/userfiles/files/fan-page-coin-master_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/is-roblox-hacked_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/get-robux_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/earn-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/hack-coin-master-using-cheat-engine_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/hack-mod-coin-master_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-robux-survey_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/twitter-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-hack-ios-without-verification_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/minecraft-launcher-download-free_GM479516143.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/114-hacks_GM479516143.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-daily-spins_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-free-spins-reddit_GM406889139.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_003_off00004d95.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4D95	26448 bytes
SHA-256: `3afe74d920e5bd8e8f172152adbafc061d5814972b04a0cf6aac9a0bf6e72129`
`font_01_sfnt_off00008b28.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B28	12856 bytes
SHA-256: `00b244f7fcd297dd4ed1cfd9c89c8346b80731d7dd9fb6aa751f844ccd95798d`
`font_02_sfnt_off0000b334.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB334	18944 bytes
SHA-256: `78a0fcf68a5d31112d03f33f6a87e59a8dd4ec5e5d54fb5213929ff381de215f`

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