Malicious PDF — malware analysis report

Static analysis result for SHA-256 658acdae3c917112…

MALICIOUS

PDF

41.9 KB Created: 2021-05-12 07:53:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e0a984259d6aa62e4bf725106ebdcd63 SHA-1: 04a3dc0cc9f812d333d0644d7d07b3115585441c SHA-256: 658acdae3c9171121ef055c41871f4664014de032044e16a649bf08aecfc50b9
82 Risk Score

Malware Insights

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

The PDF document contains a high-severity heuristic indicating it links to a game hack redirector, specifically targeting users interested in 'free generators' or 'game hacks'. The document body and extracted URLs reinforce this, pointing to sites offering Minecraft mods and Robux. This suggests the PDF is designed to trick users into visiting malicious sites that likely host further malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/minecraft-ore-finder-mod-game-hack PDF link annotation
    • http://electro-nrg.com/images/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • http://electro-nrg.com/images/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://electro-nrg.com/images/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-free-master_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/how-to-get-free-items-on-roblox_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-tips_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/robux-download_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-cards-free_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-free-rewards-link_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004834.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4834 26312 bytes
SHA-256: e0c08bd438f060e22007ed2aa9230d17cc5305d367ac34f15e6e095002c7012c
font_01_sfnt_off00008299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8299 17884 bytes
SHA-256: 3d0c275330d6a7b87118e225175bc9b431f0584a36e1632c85eac693847a7bcd

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