Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbea44a7f6cfd868…

MALICIOUS

PDF

38.3 KB Created: 2021-05-22 14:14:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: bb5d54ebc495f066a43e0bcc64ec8efe SHA-1: 66f75686a06b1be538865cb48f7aeecb080da629 SHA-256: cbea44a7f6cfd868fef5034c48a82eccfeb46a3e06564c45bc4e5b568ab1a359
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple embedded links and a heuristic firing for a 'game hack redirector' lure, specifically mentioning Minecraft. The primary malicious URL is https://netcdn.xyz/app/479516143/how-to-install-minecraft-for-free-game-hack, which is likely used to deliver a secondary payload or redirect to a phishing site. The document body also contains text related to installing Minecraft for free, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7010

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/479516143/how-to-install-minecraft-for-free-game-hack PDF link annotation
    • http://manfeld.dk/images/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://manfeld.dk/images/roblox-skin-free_GM431946152.pdfIn PDF document text
    • http://manfeld.dk/images/strucid-aimbot_GM431946152.pdfIn PDF document text
    • http://manfeld.dk/images/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://manfeld.dk/images/how-to-get-unlimited-xp-in-pokemon-go_GM1094591345.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000033d0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33D0 24792 bytes
SHA-256: 8dadb52a8658955952b47b206eb4dc09d84eeb0865884fae7d04ea9fc766077d
font_01_sfnt_off00006b56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B56 2856 bytes
SHA-256: 8c5d9bcb386d88c7f99323d8d482e46ea21dea038a5b842744dd5d39b26b2c44
font_02_sfnt_off0000752d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x752D 17948 bytes
SHA-256: 5e3ba7e4cd3ca4e9461728952bafe8ac7745d23e1bc3d1385ef5be4278fd35be

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