Malicious PDF — malware analysis report

Static analysis result for SHA-256 c91c5ab2c34f8214…

MALICIOUS

PDF

42.6 KB Created: 2021-05-21 06:09:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f891d699ccc77c9d70c7a3bc36568276 SHA-1: 1314b6161a6981756c3b14e2a09bcd2cdcffb7df SHA-256: c91c5ab2c34f82146858cd74bcb7ce85c82125d07dc11101cf993fefe7c03257
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure related to obtaining free game items or hacks, specifically mentioning Minecraft. It embeds multiple URLs that redirect to sites offering game-related downloads or generators, with one prominent URL being https://netcdn.xyz/app/479516143/how-to-get-minecraft-for-free-on-xbox-game-hack. The presence of a 'free generator' lure and multiple suspicious links indicates a likely attempt to trick users into downloading malware or visiting a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8161

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-get-minecraft-for-free-on-xbox-game-hack PDF link annotation
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/pokemon-go-free-game-download_GM1094591345.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/coin-master-root-hack_GM406889139.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/avatar-de-roblox_GM431946152.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000037c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37C9 25072 bytes
SHA-256: 0f984c16b036d6071a1fb57967ba68b0751dfab52ee343ef73c62699c0cbbd42
font_01_sfnt_off00007000.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7000 3020 bytes
SHA-256: f1a29adcea636583330be8db4f6466410de551ac48576b9e1aa5c34e2d665a1f
font_02_sfnt_off00007a54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A54 2816 bytes
SHA-256: 4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f
font_03_sfnt_off00008464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8464 18472 bytes
SHA-256: 63446f7755945d37ec8b97d22fda434cb08cbf4c61a02f7f94d2af605f03b611

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