PDF malware analysis — malicious · 0761a2cd8b12fa4f

MALICIOUS

PDF

42.2 KB Created: 2021-05-15 00:56:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 248ab4abe1124a0fe3b716a396c84070 SHA-1: bba330f32ee3c43b98bf60f7ffb3fca6825e6723 SHA-256: 0761a2cd8b12fa4fcd46971c7cea80a1cc42a36db749f221a3522bf8cfca2cdf

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free in-game currency to entice users to click on a malicious URL. The primary malicious URL identified is https://netcdn.xyz/app/431946152/7-year-old-roblox-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to potentially malicious content, likely for credential harvesting or further malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/431946152/7-year-old-roblox-game-hack PDF link annotation
- https://loba.com.vn/public/upload/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/download-coin-master-hack_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-pics_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-minecraft-skins-pe_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/hacked-roblox-game_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-free-coins-and-spins-today_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/como-hackear-el-juego-coin-master_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/is-windows-10-minecraft-free_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-free-spain_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-with-no-verification-2021_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_off00004878.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4878	25076 bytes
SHA-256: `83e9aab65a66ce9b6c5a8057bd1b7dc21e5c97511224e6b815f0ea0d7096a96d`
`font_01_sfnt_off000081d7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x81D7	18404 bytes
SHA-256: `37225de3c02ebdb31c4d59be1a78a7ea60948fb78f91d5b0c72323347af89c0d`

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