Malicious PDF — malware analysis report

Static analysis result for SHA-256 70084ff71c212a0e…

MALICIOUS

PDF

35.3 KB Created: 2021-06-26 15:22:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3a4e734db1e0ac96aab7b156f9ea677f SHA-1: 55ad03dcf353bdd8f65dba67e010981b7e85397e SHA-256: 70084ff71c212a0eac653f5eedb63b26fa1f9b135b478400d38db409b60836f4
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.co/app/431946152/how-to-hack-into-any-roblox-account-2021-game-hack PDF link annotation
    • https://opac.umrah.ac.id/repository/roblox-hack-generator-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/robloxgiveaways-top-roblox-hack_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-dragon-ball-online-cheat-codes_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-how-to-pass-human-verify_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-create-a-roblox-hack_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/synapse-roblox-hack-buy_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-tuto-hack_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-coin-master-spins-no-human-verification_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-the-northern-frontier-hacks_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-free-robux-give-away-lve_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/hack-roblox-accounts-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-jackpot-hack_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/hacker-tools-for-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/frobux-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/mcpe-master-free-coins_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/can-u-actually-hack-roblox_GM431946152.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
font_00_sfnt_off00002fea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FEA 22756 bytes
SHA-256: f23343c573ee9c4d58f1987f7a11bd80bf90ed396aa2e66c3ad004d6b86df614
font_01_sfnt_off000062e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E3 19644 bytes
SHA-256: e2d8c129faa5f7c6530aed85c2c9cadeb644629b6f224744f5534f81215444f8

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