Malicious PDF — malware analysis report

Static analysis result for SHA-256 95846c24a4a4e2cd…

MALICIOUS

PDF

33.6 KB Created: 2021-07-03 14:43:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 68f2d95c5af0110df5fbe4979d41d243 SHA-1: a0087e7fd055373eadaa8a244b479e6803a9267f SHA-256: 95846c24a4a4e2cd48a0a2df895ac226dd2522fd634ec66bbdf110c840262436
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a lure related to 'free game hacks' and 'robux generators', strongly suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious. The document body contains text and URLs that reinforce the lure of obtaining free in-game currency, likely leading to a malicious website or further download.

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.tw/app/431946152/free-roblox-characters-game-hack PDF link annotation
    • http://windhorsetrek.com/userfiles/files/how-to-make-robux_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/my-roblox-girlfriend-cheated-on-me_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/free-robux-promotinal-codes_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/coin-master-free-pin_GM406889139.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/free-spin-links-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/impact-hack-roblox-help_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/how-to-get-robux-for-free-on-laptop-2021_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/coin-master-hack-tuts_GM406889139.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/roblox-hack-download-robux_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/roblox-free-roblox_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.

FilenameKindSourceSize
font_00_sfnt_off00002e19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E19 22004 bytes
SHA-256: 4484bcfd1ac8337eb29e0a7686af1ad3995f58b0ebc95b9f26fcdf45bf2ddcb7
font_01_sfnt_off00005ec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC2 18920 bytes
SHA-256: f5e38632de1cb8bfdf796bc872df6d19c2691b2634d989ea191675e2d28a5d2f

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