Malicious PDF — malware analysis report

Static analysis result for SHA-256 aadfa1096e20e5fb…

MALICIOUS

PDF

36.8 KB Created: 2021-06-21 09:14:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1edc831d76d8aeb806d7a714563323ef SHA-1: 924aeed6f594330ce57661afb66d2b4f370f2482 SHA-256: aadfa1096e20e5fbf7989426974235c9230003e66986232a2cd44aa27f1f301d
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/roblox-how-to-hack-peoples-accounts-game-hack PDF link annotation
    • http://eurosystemssrl.it/images/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://eurosystemssrl.it/images/coin-master-hack-online-no-human-verification_GM406889139.pdfIn PDF document text
    • http://eurosystemssrl.it/images/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://eurosystemssrl.it/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/free-roblox-royale-high-diamonds_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/roblox-mining-sim-hack-pastebni-december-2021_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/minecraft-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://eurosystemssrl.it/images/how-do-you-hack-somebody-on-roblox_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/free-gift-in-big-paintball-roblox_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/how-to-hack-other-peoples-invertorys-on-roblox-adopt-me_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/minecraft-free-ios-no-verification_GM479516143.pdfIn PDF document text
    • http://eurosystemssrl.it/images/roblox-free-bundles_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/free-apk-mods-coin-master_GM406889139.pdfIn PDF document text
    • http://eurosystemssrl.it/images/how-to-hack-and-to-a-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/how-do-you-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://eurosystemssrl.it/images/minecraft-com-free_GM479516143.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_off00003566.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3566 23148 bytes
SHA-256: 9f52f80df4228321d1de2cade9561972d0f9b3ef2d6424f02137ef19382ca929
font_01_sfnt_off000069c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69C4 19392 bytes
SHA-256: bb1f62d2c971f199c131372523ff1ebf531009c0dbbe50a60baa2f0dbba79561

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