Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ac011d5298d641a…

MALICIOUS

PDF

39.8 KB Created: 2021-05-23 13:07:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: fbab3e9506bb47d9913c548f6c2c162f SHA-1: e723ffc79ccffeea44b70c0c6988e5b34351d1cb SHA-256: 9ac011d5298d641ab6d940b028c02e1709ee4cc2486f8fe37c77166c7d95d7b6
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 0.9476

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-download-minecraft-for-free-on-iphone-game-hack PDF link annotation
    • https://farkas.de/images/minecraft-linux-free_GM479516143.pdfIn PDF document text
    • https://farkas.de/images/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://farkas.de/images/coin-master-cheat-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://farkas.de/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • https://farkas.de/images/free-robux-no-password_GM431946152.pdfIn PDF document text
    • https://playhack.in/minecraftIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003716.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3716 29664 bytes
SHA-256: 2eb57226d5a98f6aa9e5345305978502a3951ff7151f0253720f95581d92efd8
font_01_sfnt_off0000799a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x799A 18632 bytes
SHA-256: a38ec870b75b85e502f421fe1ead362eb1db7184f5387a13d9ce5f1a3d5be23c

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