PDF malware analysis — malicious · 8d2fbf98044becdf

MALICIOUS

PDF

44.0 KB Created: 2021-05-11 02:12:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: bf59fce214e3452e649798c166ae35be SHA-1: 60d9c30fdf38079c5295711ae662b709f5c74659 SHA-256: 8d2fbf98044becdfa891b52878460990acc761a4ccb4a0a8438e327b29804491

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple external links disguised as "free generator" or "game hack" lures, aiming to trick users into visiting potentially malicious websites. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs supports a phishing or scamming attack pattern. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to external resources.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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/free-robux-no-human-verification-or-survey-or-download-2021-game-hack PDF link annotation
- https://www.insol-europe.org/uploads/files/files/robux-match_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-spin-link_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-free-version_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/bloxpink-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/promo-code-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/hack-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-stream_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-free-items_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-ad_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/buy-robux-free_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/javascript-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/get-free-robux-info_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-group_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-glitch_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_off00004ad5.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4AD5	24760 bytes
SHA-256: `1e17d41eaabc8ceee2fc4bcbac3f95498f334fd1903e18591163986dcf5203ff`
`font_01_sfnt_off000083f8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83F8	20136 bytes
SHA-256: `66e5e50e12f5eb49621ab9bcd6ab85026409d616512a452c1eb3339dd9867554`

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