Malicious PDF — malware analysis report

Static analysis result for SHA-256 882d06e5fc2fe699…

MALICIOUS

PDF

42.3 KB Created: 2021-05-02 19:36:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 5e490b95df82eaaf66a4aee79061126e SHA-1: 2d9d6cd381d18ac0f74a71cd8753c750e60fafb9 SHA-256: 882d06e5fc2fe69921b3cfe7bd8ed008d2be4dce559621e951c24cddfa1d8892
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a 'free generator / game hack' lure, specifically mentioning Roblox. The embedded URL and numerous other related PDF URLs found in the document support this lure. While no scripts were explicitly extracted, the nature of PDF exploits often involves JavaScript to redirect users to malicious sites for credential harvesting or further malware delivery.

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/roblox-login-page-free-game-hack PDF link annotation
    • https://fridaytravelnepal.com/userfiles/files/hack-richest-roblox-account-deleted.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/connect-to-roblox-account-roblox-hack-generator.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/roblox-earn-free-robux-games.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/giving-people-free-robux-livestream.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/free-robux-with-only-one-human-verification.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/free-roblox-weapons.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/redeem-code-roblox-free-robux-2021.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/rbxf-free-robux.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/image-veste-army-free-roblox.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/hack-para-android-roblox.pdfIn PDF document text
    • https://www.semrush.com/prices/In 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_off000045c2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x45C2 26740 bytes
SHA-256: d99cb1ea9c94830ce99c08ba0227a0c55f114afeb5ee3b80b1d2beb73c7b303b
font_01_sfnt_off00008275.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8275 18736 bytes
SHA-256: dc2f1ebd65234cfc3df7aa7586fb028a0c2cefd5035492e6660fa4d0a8588b61

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