Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ec9287a0768ec6b…

MALICIOUS

PDF

37.5 KB Created: 2021-05-10 13:14:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8105c26948304e06336e9b4c026c6efd SHA-1: fc2cba3186158b3e4c75d9146f5a2cfec6f60f52 SHA-256: 4ec9287a0768ec6b45f22fd9502455e52c67eb47087fdede1f73ebf50e7796f6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to websites offering game hacks and free in-game currency. The primary lure is for 'Coin Master Free Spin and Coins Links', directing users to a malicious URL. The document body and heuristics indicate a social engineering tactic to trick users into visiting these sites, likely to download further malware or engage in credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9440

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/406889139/coin-master-free-spin-and-coins-links-game-hack PDF link annotation
    • http://greasley.website/images/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/coin-master-hack-spin-generator-tool_GM406889139.pdfIn PDF document text
    • http://greasley.website/images/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/how-do-you-get-free-roblox-money_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
stream_003_off0000391d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x391D 24772 bytes
SHA-256: 372d9d739abe8c1543941cb963b31f7eab64d953998b1f738301bef88b49743f
font_01_sfnt_off00007106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7106 18228 bytes
SHA-256: ab1c4cdc214a6baf81a15e2f62a40ea9cfbbbf407f0f3dd1c7564e467cf0dae2

Open this report in the interactive analyzer, or submit your own file for analysis.