Malicious PDF — malware analysis report

Static analysis result for SHA-256 67e6e2ca862af50a…

MALICIOUS

PDF

42.9 KB Created: 2021-04-24 18:22:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 904a911e108085cd0c257506b77ff771 SHA-1: b6836547a41f7ffedcb6f34def24d4be74a6068d SHA-256: 67e6e2ca862af50a860ef244affe4b92d3efa47140203638391ca7aa979c2a20
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains heuristics indicating it links to a "free generator / game hack" lure, specifically mentioning Robux. The primary URL, https://netcdn.xyz/app/431946152/get-robux-no-hack-game-hack, is associated with this lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or social engineering attack aimed at tricking users into visiting malicious sites, potentially for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9836

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/get-robux-no-hack-game-hack PDF link annotation
    • http://pro-graphite.com/images/dragon-ball-z-final-stand-roblox-hack.pdfIn PDF document text
    • http://pro-graphite.com/images/oof-hack-off-roblox-id.pdfIn PDF document text
    • http://pro-graphite.com/images/free-roblox-studio-blocks-addon.pdfIn PDF document text
    • http://pro-graphite.com/images/final-stand-2-hack-roblox.pdfIn PDF document text
    • http://pro-graphite.com/images/how-to-fix-roblox-hacks-wikihow.pdfIn PDF document text
    • http://pro-graphite.com/images/free-robux-generator-com-oprewards.pdfIn PDF document text
    • http://pro-graphite.com/images/how-to-make-a-dll-hack-roblox.pdfIn PDF document text
    • http://pro-graphite.com/images/roblox-cheats-for-robux-and-tix-2021.pdfIn PDF document text
    • http://pro-graphite.com/images/roblox-dll-cheats.pdfIn PDF document text
    • http://pro-graphite.com/images/admin-code-for-free-robux.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003f0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F0A 25616 bytes
SHA-256: 6cf0bce4631b8176d7912d0ebfa2ba9bb85831d3284aa04e389ac52edd23a47a
font_01_sfnt_off00007876.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7876 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off0000851e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x851E 18352 bytes
SHA-256: c9aecf496794d9e90becc4f8655744c93adfbb4a7c9176772991ef8da2e0c39e

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