Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b7e258c53b058b6…

MALICIOUS

PDF

37.9 KB Created: 2021-05-22 21:17:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: b0c7451ff95c485da5eef5012e6d5b68 SHA-1: 1fbacccf3ea577daf48356c9a4da101a80bd418c SHA-256: 8b7e258c53b058b620fa53357848194f7414bb96230a03b695dc34e71157e142
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a visible call-to-action, masquerading as a "free generator" or "game hack" for Roblox. The primary URL, https://netcdn.xyz/app/431946152/how-to-hack-a-roblox-account-easy-game-hack, is identified as a high-risk redirector. The document's content and heuristics strongly suggest a social engineering tactic to trick users into visiting malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

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-to-hack-a-roblox-account-easy-game-hack PDF link annotation
    • https://farkas.de/images/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • https://farkas.de/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • https://farkas.de/images/no-human-verification_GM431946152.pdfIn PDF document text
    • https://farkas.de/images/easy-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://farkas.de/images/get-more-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000033f8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33F8 26800 bytes
SHA-256: bcd4c0e26c07e63d31c9b5fccf26f73729f20bc3ff7a1646db1e8fb1b5cca615
font_01_sfnt_off0000711c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x711C 18772 bytes
SHA-256: f0aa2a8f008262e8aa636f08cdffff7c9568ae6e0bf5f389be1472b9a6879674

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