Malicious PDF — malware analysis report

Static analysis result for SHA-256 868e64dc1692c1d8…

MALICIOUS

PDF

41.2 KB Created: 2021-04-25 00:28:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 54b4cb6de4b43c2ba7734853531808d6 SHA-1: b0ecfd227f7e91aadb284b0c83a3d20bbafa78c6 SHA-256: 868e64dc1692c1d85279fb0a5fb63b40ca2a87cb2c7f85a9a4fb44c499d7fb16
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure related to game hacking, specifically mentioning 'Cheat Engine' and 'Roblox'. It includes a high-risk heuristic firing for a game hack redirect, pointing to a URL that likely hosts malicious content or phishing pages. The document body, though partially corrupted, also contains similar keywords and URLs, reinforcing the malicious intent.

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-do-u-use-cheat-engin-with-roblox-game-hack PDF link annotation
    • http://wattkit.com/images/roblox-asset-download-for-shirt-template-free.pdfIn PDF document text
    • http://wattkit.com/images/free-items-on-roblox-names.pdfIn PDF document text
    • http://wattkit.com/images/roblox-treasure-quest-cheat.pdfIn PDF document text
    • http://wattkit.com/images/how-to-hack-peoples-roblox-accounts-2021.pdfIn PDF document text
    • http://wattkit.com/images/can-you-use-cheat-engine-in-2021-roblox.pdfIn PDF document text
    • http://wattkit.com/images/boku-no-roblox-remastered-free-account.pdfIn PDF document text
    • http://wattkit.com/images/roblox-hack-menu-ios.pdfIn PDF document text
    • http://wattkit.com/images/ive-been-hacked-on-roblox-what-now.pdfIn PDF document text
    • http://wattkit.com/images/cheat-codes-for-building-simulator-roblox.pdfIn PDF document text
    • http://wattkit.com/images/free-robux-hack-pastebin-2021.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_off00004180.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4180 25528 bytes
SHA-256: e53419d72ec45a77af42620516edab4a5a5a8c2d5468cde0d1aa8da43a312839
font_01_sfnt_off00007b9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B9D 19404 bytes
SHA-256: 0525f30469456ef40c3b32e64779f2d911ebe4812fd3e5b048432d4f83f9e6d3

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