Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb326f50ead2e572…

MALICIOUS

PDF

42.8 KB Created: 2021-04-25 19:03:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 1c34bbe66dd9d88cb2c47c47e8806915 SHA-1: 4f6d622dec9b789df24538cb7f14235cccc2a513 SHA-256: cb326f50ead2e57250c2bbe177b6dff60c159a1f07c8d2c289b31b8f9a63977a
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/hack-para-roblox-robux-2021-game-hack PDF link annotation
    • https://lib.stie-yai.ac.id/repository/aim-hacks-for-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/rosie-hacks-caillous-roblox-account.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/hack-my-roblox-account-freee-no-downloads.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/hack-de-robux.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-hack-robux-items-for-free.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-free-robux-hack-on-tablet.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-gear-in-roblox-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-dragon-ball-z-final-stand-zeni-hack.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/dolphin-hacks-roblox-exploits.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/top-10-roblox-groups-for-free-robux.pdfIn 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_003_off000041f5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x41F5 29392 bytes
SHA-256: b8204145f16f4700d0641870263e0b7fdb0c1e69e914ef3300d181cd8fd48284
font_01_sfnt_off0000839a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x839A 18876 bytes
SHA-256: 4ab7059e248b373577c583da998f725ec01cead11088cd8393b243af3885bb4b

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