Malicious PDF — malware analysis report

Static analysis result for SHA-256 be6c1e305420bb69…

MALICIOUS

PDF

40.8 KB Created: 2021-04-27 16:05:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: c251227bbbdd3e9d1f6904e2dc2ee57f SHA-1: 26dd49b8166c1ba41a2617007c0c4f8b773f7096 SHA-256: be6c1e305420bb69e71845b363973c88f83ea2b69e05afa49e97876c86e00f02
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector infrastructure, disguised as game hacks for Roblox. The heuristic PDF_GAME_HACK_REDIRECT_LURE specifically identifies this lure technique. While no scripts were extracted, the presence of embedded URLs and the nature of the lure strongly suggest a phishing or redirection attempt to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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 https://netcdn.xyz/app/431946152/roblox-lumber-tycoon-tg-hacks-game-hack In PDF document text
    • http://www.saburai.ac.id/elibrary//repository/roblox-virtual-piano-hack.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/how-to-cheat-on-you-roblox-girlfriend.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/fencing-roblox-hacks.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/how-to-get-free-roblox-money-2021.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/how-to-get-a-free-membership-on-roblox-useing-hacks.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/hacks-to-get-free-robux-2021.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/auto-rap-battles-roblox-hack.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/robux-hack-app-download.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/robux-store-free.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/free-bux-hack-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_off00003f79.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3F79 26940 bytes
SHA-256: dd054b034cd45cf508697b431e0938704cf00e2e3e2eca0a5d30a65183c39558
font_01_sfnt_off00007b36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B36 19052 bytes
SHA-256: f9431cce62fb5a678f9d392bfa8dd146043e0e1d78cbb24c4be384ebe10bba0e

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