PDF malware analysis — malicious · 75f61b26f80b3527

MALICIOUS

PDF

33.8 KB Created: 2021-06-30 21:29:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: 763cdf811be5d1d0758ddb5cf704a204 SHA-1: 3a73514aaed192ae4da6f667e49af3d48904a5be SHA-256: 75f61b26f80b3527d3ee1063e295fa7bc34dcf37b95b9495da0ba11b81088e51

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for free game hacks and in-game currency, directing users to a malicious URL. The ML classifier strongly flagged this PDF as malicious. While no scripts were extracted, the embedded URL and the nature of the lure suggest the document is designed to trick users into visiting a site that likely hosts further malicious content or exploits.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/479516143/free-minecraft-skin-packs-game-hack PDF link annotation
- https://xhse.vn/public/upload/files/how-do-you-get-roblox-money_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/free-robux-please_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/coin-master-apk-hack-2021-ios_GM406889139.pdfIn PDF document text
- https://xhse.vn/public/upload/files/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
- https://xhse.vn/public/upload/files/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdfIn PDF document text
- https://xhse.vn/public/upload/files/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
- https://xhse.vn/public/upload/files/hack-coin-master-no-verification_GM406889139.pdfIn PDF document text
- https://xhse.vn/public/upload/files/free-tiktok-followers-no-verification-or-survey_GM835599320.pdfIn PDF document text
- https://xhse.vn/public/upload/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
- https://xhse.vn/public/upload/files/comment-hack-des-robux_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/piano-player-roblox-hack_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
- https://xhse.vn/public/upload/files/free-tiktok-followers-royal-key_GM835599320.pdfIn PDF document text
- https://xhse.vn/public/upload/files/coin-master-free-spins-iphone_GM406889139.pdfIn PDF document text
- https://xhse.vn/public/upload/files/roblox-inappropriate_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/five-nights-at-freddys-tycoon-on-roblox-free-online_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/free-robux-no-human-verification-no-password_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/how-to-get-any-aduio-for-free-roblox_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/how-to-hack-roblox-games_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
`font_00_sfnt_off00002e6a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2E6A	22904 bytes
SHA-256: `c11e76ee55cb36d856d51869e4c099d4aab1b6a49499a1157711c275fa8d6098`
`font_01_sfnt_off000061cf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61CF	18180 bytes
SHA-256: `af546ec7d16cdc8db8a545ddb361d3216713a52e8bef528030956627ce368622`

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