Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ece2afe3b106a8f…

MALICIOUS

PDF

43.5 KB Created: 2021-06-02 06:35:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 24e99376f93bfd304804630370873677 SHA-1: c18ae1300ad13d8f25142ebe43e70941fc693563 SHA-256: 3ece2afe3b106a8f6f014468e40d4850c37cf249ded9de36ac1276c97afe7898
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/free-minecraft-server-hosting-24-7-game-hack PDF link annotation
    • http://www.homesweethome.pl/images/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.homesweethome.pl/images/free-roblox-characters_GM431946152.pdfIn PDF document text
    • http://www.homesweethome.pl/images/can-you-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://www.homesweethome.pl/images/coin-master-hack-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://www.homesweethome.pl/images/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/free-robux-working_GM431946152.pdfIn PDF document text
    • http://www.homesweethome.pl/images/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://www.homesweethome.pl/images/free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://www.homesweethome.pl/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.homesweethome.pl/images/daily-coin-master_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.homesweethome.pl/images/minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://www.homesweethome.pl/images/coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.homesweethome.pl/images/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://www.homesweethome.pl/images/freespins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.youtIn 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_004_off00004e8d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E8D 24928 bytes
SHA-256: ddf9e710ad05d00066ec7e0d32db2cfd8a7761d389990533e387932e7eb1ac2a
font_01_sfnt_off00008700.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8700 18352 bytes
SHA-256: 91a7490c887560cf1db9cb18ebb1e2a98db2d1ca6a1740dfb9f9cb38742cb9c1

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