Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa0a5ef56bdc21f3…

MALICIOUS

PDF

46.4 KB Created: 2021-05-11 05:08:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 15ae38d060684bffa28b124bfc361b4e SHA-1: 246e9ef8c3d2c9008ce4b8651a9247bf7d503823 SHA-256: aa0a5ef56bdc21f317f9eb27e121572738b01f06094ba8021a7f3422340df9b6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic firing for a game hack redirect lure, pointing to a suspicious URL. The document body, though partially corrupted, also contains references to 'hacks to get free robux' and the same suspicious URL. This suggests the PDF is designed to trick users into visiting a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8696

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/431946152/hacks-to-get-free-robux-game-hack PDF link annotation
    • https://www.europap.cz/images/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/free-robux-apk_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/coin-master-free-spins-daily-1-ga_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/hack-the-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://Buy.HoaxMC.comIn 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
font_00_sfnt_off000049a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49A4 25044 bytes
SHA-256: 1be6e8b1c2a55c69ba1dd2501859b378ef85cfda42faa0bfd03c9b79c3000494
font_01_sfnt_off000081b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81B1 6700 bytes
SHA-256: ae114634718854704d615808d33fb1b747d90eb28e420080bd5adbdfe7fb6a27
font_02_sfnt_off000091ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91EE 18516 bytes
SHA-256: 49067203d4eb86d04ddf999d64ba4750afe8b15cea6fed862c5ee30987f881c1

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