Malicious PDF — malware analysis report

Static analysis result for SHA-256 d18915d1ea69386d…

MALICIOUS

PDF

32.8 KB Created: 2021-06-18 09:35:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 844586f6ad030cf44790e37621a9da45 SHA-1: c04bc94fa6609739a24fd7f1b6cd85270058443c SHA-256: d18915d1ea69386d661ddcbe02913f0dc9b34a34313551e688992b6840ac03df
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 0.9824

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 http://netcdn.co/app/431946152/mad-shitter-roblox-hack-game-hack PDF link annotation
    • https://c2o-library.net/catalog/repository/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-links-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/easter-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-do-you-get-free-robux-without-buying-apps_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/dss-roblox-money-hacks_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-raf-free_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/hack-game-tool-for-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-ad_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-hacks-for-windows-7_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/hacking-community-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/get-coin-master-cards-free_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-lightning-hack_GM431946152.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
font_00_sfnt_off00002a1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A1E 21884 bytes
SHA-256: dbaa14410169033d93a5ba2c59a2837690e91edc9ded8e8558ea26d6c6a20476
font_01_sfnt_off00005a7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A7B 19416 bytes
SHA-256: f6ccd5ec12ddf8dd0a67916266bd968be4b23c5397b8fb92d72b73c1ebae9b46

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