Malicious PDF — malware analysis report

Static analysis result for SHA-256 96a5618b971f9fae…

MALICIOUS

PDF

34.2 KB Created: 2021-07-06 10:48:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 213866630d944298b91cc74c0faac223 SHA-1: 37a9247f276367952dda1b79464a6a9b3ebef8d6 SHA-256: 96a5618b971f9faedb6a80035aa78a505f384c9f0990fafd5a1d89716c70d984
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 0.9980

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.tw/app/431946152/how-to-hack-into-someones-roblox-account-game-hack PDF link annotation
    • https://slims.bakrie.ac.id/textbook/repository/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-minecraft-com_GM479516143.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/lua-hack-client-roblox_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/bloxland-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/roblox-hacks-for-chromebook_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/earn-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-generator_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-com-real_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-website_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-give-yourself-robux-with-cheat-engine_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/00-roblox-hacker_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/roblox-zall-site-free-robux_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-get-free-robux-and-tix-november-2021_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/i-want-free-robux_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-free_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/get-free-robux-add-codes_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_off00002f63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F63 21880 bytes
SHA-256: e4a5ea0d247261b153880314daf024bf903b41279cb1c55926928e15833b09db
font_01_sfnt_off00005fa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA8 19324 bytes
SHA-256: 24cbb78c2e4d02f15d6dff94c04074d97d349401c8d74d3264b26149d869587d

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