PDF malware analysis — malicious · 8eed991977d81276

MALICIOUS

PDF

43.2 KB Created: 2021-05-11 05:42:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26

MD5: edef389cf30bf4edbef930b41319b83c SHA-1: e91a0dafac457f6efc23aa7bed826707eb767e98 SHA-256: 8eed991977d8127608b4dd0ad9fcd934a6b1c3a9a93fee8ab0fb77512b85a654

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting 'free generators' and 'game hacks' to lure users. The ML classifier also flagged this PDF as malicious with high confidence. The embedded URLs and the document body content strongly suggest a phishing or scam attempt designed to redirect users to potentially harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

Heuristics 4

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.
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 https://netcdn.xyz/app/431946152/grabpoints-robux-game-hack In PDF document text
- http://www.hotelcimone.it/images/coin-master-free-spin-generator-without-human-verification_GM406889139.pdfIn PDF document text
- http://www.hotelcimone.it/images/2021-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- http://www.hotelcimone.it/images/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- http://www.hotelcimone.it/images/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
- http://www.hotelcimone.it/images/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
- http://www.hotelcimone.it/images/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.hotelcimone.it/images/easy-roblox-today_GM431946152.pdfIn PDF document text
- http://www.hotelcimone.it/images/coin-free-spin_GM406889139.pdfIn PDF document text
- http://www.hotelcimone.it/images/coin-master-hack-2021-without-verification_GM406889139.pdfIn PDF document text
- http://www.hotelcimone.it/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- http://www.hotelcimone.it/images/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
- http://www.hotelcimone.it/images/coin-master-daily-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
- http://www.hotelcimone.it/images/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
- http://www.hotelcimone.it/images/coin-hackhub-coin-master_GM406889139.pdfIn PDF document text
- http://www.hotelcimone.it/images/coin-master-links-2021_GM406889139.pdfIn PDF document text
- http://www.hotelcimone.it/images/minecraft-java-edition-free-download-for-android_GM479516143.pdfIn PDF document text
- http://www.hotelcimone.it/images/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
- http://www.hotelcimone.it/images/hack-coin-master-pc_GM406889139.pdfIn PDF document text
- http://www.hotelcimone.it/images/robuxfree-con_GM431946152.pdfIn PDF document text
- http://www.hotelcimone.it/images/minecraft-wurst-hacked-client_GM479516143.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_off00004865.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4865	27432 bytes
SHA-256: `2f01b730e5dfffba6bfb2d0a45e8a72bbb817f16c1de6a7ec0837101cd488f53`
`font_01_sfnt_off000085d5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85D5	18480 bytes
SHA-256: `81e4f6a1b4c560ff48fa89910fbd01a1bd1019ab61c59202556c2e43fcf333ec`

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