PDF malware analysis — malicious · ca8b5769f4c70acc

MALICIOUS

PDF

34.6 KB Created: 2021-06-27 18:59:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: deb7c78b0b1cad6d3af471b4c304bbf8 SHA-1: 808f5c2ec58ea1b24c12232a2206900e77861470 SHA-256: ca8b5769f4c70acc22688d7f5a78ccf347a40c8a6326f4e5dc044ac07c391e90

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/nexus-hacking-roblox-game-hack PDF link annotation
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/roblox-seaside-cheat_GM431946152.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/roblox-jailbreak-cheat-menu_GM431946152.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/coin-master-hack-ios-without-verification_GM406889139.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/heroes-online-roblox_GM431946152.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/best-hacks-roblox_GM431946152.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/coin-master-hack-lost-world-2021_GM406889139.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/free-robux-sites-that-actually-work_GM431946152.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/roblox-hack-script-executor_GM431946152.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/roblox-profile-picture-free_GM431946152.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/free-robux-exe_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_off00003153.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3153	22124 bytes
SHA-256: `8144fa831ade4c39df2dd1e6dce4f17c99e5c02a4d8549740d4cf11609aafd75`
`font_01_sfnt_off00006269.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6269	18916 bytes
SHA-256: `0ef912191d677a7cae29f0922af07c56796676e5c119c4e1c85c7bde6be5170a`

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