Malicious PDF — malware analysis report

Static analysis result for SHA-256 49251fa0e66805dd…

MALICIOUS

PDF

36.8 KB Created: 2021-05-23 11:49:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9a2833530a04c51328ed8c6c8127ec50 SHA-1: 6d1b153ebe1b19bdc7f5121757a28d4f8bb7f748 SHA-256: 49251fa0e66805dd9ee6391a3eba250f935b639f9172b9e6d34709536339271c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-confidence heuristic indicating it links to a 'free generator / game hack' redirector, likely a lure for users seeking cheats. The document body and extracted URLs reinforce this, pointing to sites offering game hacks and generators. While no scripts were extracted, the embedded URLs suggest the PDF is designed to redirect users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/free-spins-coin-master-blogspot-game-hack PDF link annotation
    • http://elearning.mtsn2pandeglang.sch.id/__statics/gudangsoal/files/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2pandeglang.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2pandeglang.sch.id/__statics/gudangsoal/files/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2pandeglang.sch.id/__statics/gudangsoal/files/free-roblox-toy-codes-not-used_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2pandeglang.sch.id/__statics/gudangsoal/files/20-free-spins-coin-master_GM406889139.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_off000034e8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34E8 24776 bytes
SHA-256: 86c3f6b7f2058789475d00d79ca79e66c193657c012fdf8f5db281ed40f55662
font_01_sfnt_off00006e08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E08 18464 bytes
SHA-256: 1c6dfc1f98a6641c171a543c2046344b7d819ff3e085ab3ae56c0ac3320f4f50

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