PDF malware analysis — malicious · 1f8d01e5d39c3aa7

MALICIOUS

PDF

35.2 KB Created: 2021-06-29 14:00:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23

MD5: 2816411f847b3f4c30d524efc8e7cc7d SHA-1: 02c9c6f71d290cad69f14ea2c9f4411317f15819 SHA-256: 1f8d01e5d39c3aa7fdb425e1e2f9b6d96e21c778627363e8529c338e74d0dc84

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links designed to lure users into clicking on potentially malicious content, masquerading as game hacks and generators. The primary URL, http://netcdn.co/app/431946152/free-full-colour-brown-pant-roblox-game-hack, is identified as a malicious redirector. The document also hosts a large number of SEO-optimized PDF links, suggesting a link farm designed to drive traffic to various exploit or scam pages.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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
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-full-colour-brown-pant-roblox-game-hack In PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-hack-roblox-heros-of-robloxia_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-roblox-welcome-to-farmville-vip-links_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/roblox-how-to-hack-accoutns_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/naruto-rpg-roblox-cheats_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/get-free-robux-codes-now_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/como-hackear-cuentas-de-roblox-como-amon_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-roblox-promo-codes-2021-july_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/coin-master-free-pin_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-bobux_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-roblox-card-generator-no-download_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-do-you-really-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-robux-survey_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-roblox-card-codes-not-used-2021_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/roblox-hack-deutsch-pc-2021_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/games-that-give-you-free-robux-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
`font_00_sfnt_off000032be.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32BE	22224 bytes
SHA-256: `e7736cff44d6b595dcdc0e43c7b13962d8e5db5deb9d4ba1080ad5df0b2f87cc`
`font_01_sfnt_off00006430.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6430	19212 bytes
SHA-256: `8835f70db07cb38173e34e8d47a212226fd39da2eaaf62c5c0126d9b10680229`

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