PDF malware analysis — malicious · 07557861f371e9e5

MALICIOUS

PDF

34.0 KB Created: 2021-06-19 20:34:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 984bbbc421e28db96a436ed56ac06f25 SHA-1: f837fba004f0f9c7c75b78f97499ef391e94c3de SHA-256: 07557861f371e9e537d76f1c2d2f6d7a24eb0f8c00bb2acad3edc76505f4ee36

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-risk heuristic indicating it links to a 'free generator / game hack' redirector, specifically http://netcdn.co/app/431946152/free-shirt-creator-roblox-game-hack. The document body also contains this URL and other similar lures related to popular games. This suggests a social engineering attack to trick users into visiting a malicious site, likely for credential harvesting or malware distribution.

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/431946152/free-shirt-creator-roblox-game-hack PDF link annotation
- https://www.mentalhealthnow.co.uk/uploads/files/files/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/coin-master-100-spin-slot_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/vrbx-club-free-robux_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/best-free-minecraft-server-hosting-reddit_GM479516143.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/coin-master-coins_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/roblox-hack-com_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/what-tiktok-free-views-without-verification_GM835599320.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/real-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/coin-master-hacks-reddit_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/free-money-links-coin-master_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/pokemon-go-free-yourself_GM1094591345.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/free-roblox-item-code_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/daily-free-coin-and-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/minecraft-free-download-android_GM479516143.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/master-coin-hack-mod_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/hack-coin-master-2021-pc_GM406889139.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_off00002f55.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F55	21988 bytes
SHA-256: `54e2f8281b0ea48545db8602f7a9859cbd11e803655653844582cb6f2530a4b5`
`font_01_sfnt_off00005fe9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FE9	19040 bytes
SHA-256: `42221959d7cd1ef31955622e1eb9e7d1075ae0bc2ff6ea039bdc3f946e5b2595`

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