Malicious PDF — malware analysis report

Static analysis result for SHA-256 930edf581cdb5338…

MALICIOUS

PDF

36.0 KB Created: 2021-07-03 13:31:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6df60d4d63b9096a79aba488f5f3cda5 SHA-1: 5a32dbbd4ef2381f4e45e52b6e8d9b9ff16cb9e4 SHA-256: 930edf581cdb533863f9c0300429f96fbb80b9adf64539a116caecdc35cdd720
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/406889139/coin-master-hack-2021-without-verification-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/cheat-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/blue-roblox-hack_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/hacks-roblox-the-streets_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/change-roblox-username-free_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-robux-hack-no-download-2021_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/its-free-roblox-id_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-become-a-hacker-in-roblox-ios_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-download-hacks-in-roblox-high-school_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-roblox-account-generator_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/what-tiktok-free-fans_GM835599320.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-hack-unlimited-robux_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
stream_002_off00003360.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3360 23264 bytes
SHA-256: 4959ab17cb011340f573ee4f519f4b2676e98ee222881ddf19f00e501127d7b7
font_01_sfnt_off000067e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67E6 19044 bytes
SHA-256: 52d7970975dbb598a786e40d700a78de5bb38af7462f02b60e72eba81c32d00d

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