Malicious PDF — malware analysis report

Static analysis result for SHA-256 16f96df517b3ae9f…

MALICIOUS

PDF

34.5 KB Created: 2021-06-25 13:32:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 31b858b2dbab4372bcfbecc500a97087 SHA-1: 2a31bfce40939cca88220408b1207c709ae15aa9 SHA-256: 16f96df517b3ae9f44472e1881f11f408e3293f637915cec0e21def9601440ba
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, one of which, 'http://netcdn.co/app/431946152/floating-hack-in-roblox-star-wars-first-order-game-hack', is identified as a malicious redirector. The document body and heuristics suggest a lure for game hacks or generators, indicating a phishing attempt to redirect users to potentially harmful content. No scripts were extracted, but the embedded URL is a high-priority indicator.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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 http://netcdn.co/app/431946152/floating-hack-in-roblox-star-wars-first-order-game-hack In PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free4now-info-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-event-hack_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/roblox-code-lyoko-hack-xanafied_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-t-shirt-adidas-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/pubg-uc-and-bc_GM1330123889.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-roblox-tuxedo_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/pubg-uc-full-form_GM1330123889.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/roblox-hand-hack_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/boku-no-roblox-remastered-quirk-hack_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
font_00_sfnt_off00002f3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F3C 22260 bytes
SHA-256: ca3ce03f8afac29a3f40d1a2d70da7c4aa2841d9692e12f6efc5a7987b2b94a6
font_01_sfnt_off000060d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D4 19416 bytes
SHA-256: fa598a0d91b6d51e49835e6eeeb97942098dc7855b7f86658954ad755ae0ec24

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