PDF malware analysis — malicious · 06ae429e34620a7f

MALICIOUS

PDF

47.4 KB Created: 2021-06-03 21:59:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 735aaaca6b080092cb615f43bf0b09f8 SHA-1: 23d83312786fffcb48529471eb865b3b91cdfa52 SHA-256: 06ae429e34620a7fb7a3ed2c4cfb3186ae5477de6238bc2ab969a3274e3d59d7

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9769

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/fly-hack-in-eny-roblox-game-phone-game-hack PDF link annotation
- http://www.js100.com/uploads/ckeditor/files/minecraft-ps3-free-download_GM479516143.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/get-coin-master-spins-free_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/pubg-uc-hack-app_GM1330123889.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/try-minecraft-free_GM479516143.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-100-robux_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/reddit-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-tiktok-followers-no-downloads_GM835599320.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/robux-prices_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/minecraft-free_GM479516143.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/coin-master-free-spins-2021_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_004_off00004f6e.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4F6E	25668 bytes
SHA-256: `952ef0fbf9fafd03b08acd1ebe9a16d1ee9f55496e5af95eabbfe04e6ece6acf`
`font_01_sfnt_off00008a26.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A26	2940 bytes
SHA-256: `eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a`
`font_02_sfnt_off00009436.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9436	19104 bytes
SHA-256: `415384da4c7e05dd2743f0981b2524255bed1856ed3035f57f0bf0b7d373f581`

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