Malicious PDF — malware analysis report

Static analysis result for SHA-256 e70f4ae20005ced4…

MALICIOUS

PDF

40.2 KB Created: 2021-04-26 20:23:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c7dbab2b55dde02d0351eab8e69d6a14 SHA-1: 1e352f8b520f4bf8a1a52dbe72df599f4fbf3e39 SHA-256: e70f4ae20005ced42fb943398020ef5751d3317a825182da4c32fac92de9894a
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 0.9941

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/roblox-dragon-ball-rage-hack-2021-game-hack PDF link annotation
    • https://lib.stie-yai.ac.id/repository/how-to-hack-an-roblox-account-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-a-white-shirt-roblox-free.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/urban-network-robux-hack.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-put-cheat-codes-roblox-bubblegum.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/script-hack-jailbreak-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/tuto-free-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-2021-february.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-promo-codes20219-for-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/confuse-roblox-hack.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-free-roblox-cards.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_off00003ed9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3ED9 25520 bytes
SHA-256: 6d6415e95767d7f657aaffcad6e1e6d8a4953145ba4438f9bd9ce8b1ba7fa8f1
font_01_sfnt_off000078f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78F6 19040 bytes
SHA-256: 7ab76d3d9a65140ccfa45374870dad41729492d724e6e16733440cdd8bcdfdea

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