Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a7111f14063197d…

MALICIOUS

PDF

42.3 KB Created: 2021-04-29 09:11:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: fbe230c20578e5ad80b6f07486c31417 SHA-1: b12d2428008f643b1046e491338a296d5264049e SHA-256: 8a7111f14063197d0649331f1ccdd44790d94dea9853a6782490e400a4c2c7be
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document uses a lure related to 'Roblox game hacks' to entice users to click on embedded links. The primary link directs to a malicious website, likely to host further malicious content or phishing pages. The document's structure and content strongly suggest a social engineering attack aimed at tricking users into visiting a compromised or malicious domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/how-to-get-any-item-for-free-in-roblox-2021-game-hack PDF link annotation
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/ipad-roblox-cheats.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/how-can-someone-hack-roblox-account-frim-discord.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-roblox-accountes-with-robux.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/como-tener-hacks-para-roblox.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-ability-spam-dq-hacks.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/money-hack-roblox-sunset-city.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/aimbow-hack-fr-roblox-strucid.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/hack-para-robux-gratis-2021.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-prison-life-hack-2021.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/nexus-hacking-roblox.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.

FilenameKindSourceSize
stream_003_off00004591.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4591 26500 bytes
SHA-256: f89709c0e18e8efdc6579d94f8efeefbccaef5c9bc6598e231ec9052baac1ead
font_01_sfnt_off00008164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8164 19060 bytes
SHA-256: 154db191fc5e6eec843dd93126eadd41f8228ef7178ebad797b60b64983bd8e2

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