Malicious PDF — malware analysis report

Static analysis result for SHA-256 262995a20fa76b63…

MALICIOUS

PDF

41.9 KB Created: 2021-05-11 17:13:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: cceed9f65ca7f1169769fd75cdce366f SHA-1: 167f1bfdc84a8829409df46365022e87aa0b8286 SHA-256: 262995a20fa76b635104a9e80a1161eeddf222c0af4cac8175cb961fc1fdef26
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 0.9971

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/406889139/hack-my-spins-coin-master-game-hack PDF link annotation
    • https://bookswithapast.com/ckfinder/userfiles/files/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/mcpe-master-unlimited-coins-hack-apk_GM406889139.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/minecraft-mojang-free_GM479516143.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/free-robux-picture_GM431946152.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/coin-master-daily-free-spins-blog_GM406889139.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/coin-master-hack-xyz-2021_GM406889139.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/woman-roblox_GM431946152.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/gamesofficenet-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/coin-master-34-4-hack-download_GM406889139.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/all-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • https://bookswithapast.com/ckfinder/userfiles/files/free-spins-coin-master-links-no-human-verification_GM406889139.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_off00004aa1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AA1 24292 bytes
SHA-256: b07648bcd7449177b3b3b9ffd9449697ea4e39008be27503dac5f1ee2865a6ee
font_01_sfnt_off000081eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81EB 18072 bytes
SHA-256: 64ea7d9e75a5ad0838d86554105b7e844b34b7d170416bdf482dc615b179e3f4

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