Malicious PDF — malware analysis report

Static analysis result for SHA-256 783448cbf1983779…

MALICIOUS

PDF

41.2 KB Created: 2021-04-23 06:39:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 332a471daa044d5f16a22f8ade322d06 SHA-1: 14c93e9c20a43459576b2dd9904cca8ba56ffc1d SHA-256: 783448cbf1983779c44f98c95b92fe8c15016be1712a104e80829040563a295f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, directing users to websites offering 'game hacks' and 'free robux'. The ML classifier strongly flagged this PDF as malicious, and heuristics indicate it's a lure for game hacks. While no scripts were explicitly extracted, the embedded URLs suggest a phishing or malware distribution attempt.

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://netsecure.pro/app/431946152/roblox-counter-blox-hack-2021-game-hack PDF link annotation
    • http://sudamericarural.org/images/how-to-fly-in-roblox-using-cheat-engine.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-give-yourself-robux-by-hacking.pdfIn PDF document text
    • http://sudamericarural.org/images/what-do-you-do-when-someone-hacks-your-roblox-account.pdfIn PDF document text
    • http://sudamericarural.org/images/free-robux-generator-without-human-verification-2021.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-hack-roblox-no-download-2021.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-hack-roblox-jailbreak-2021-money.pdfIn PDF document text
    • http://sudamericarural.org/images/roblox-assassin-knives-hack.pdfIn PDF document text
    • http://sudamericarural.org/images/roblox-glitch-acsesoir-free.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-hack-roblox-pepol-haeds-of.pdfIn PDF document text
    • http://sudamericarural.org/images/free-robux-codes-on-roblox.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_003_off000043f4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x43F4 25664 bytes
SHA-256: 284190ba63b3de0952057bffc8b6f3abadbf4d4014489691b3147d98c9e5e9d5
font_01_sfnt_off00007d63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D63 18828 bytes
SHA-256: a559c61a52c69fa47c68f75100b046455b58c5f4bb4d0f6544c0ae50d2135b1e

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