Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0cfc7b131c7d53f…

MALICIOUS

PDF

41.7 KB Created: 2021-05-17 23:08:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: edafb27115817d9c3d903c9cff854a73 SHA-1: 9c392ab39fa669e586dceef5534827d1a9a641c0 SHA-256: d0cfc7b131c7d53febc135aeefb9886b206d130d86f4ebc6e42993e04ad5e975
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 0.9971

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 https://netcdn.xyz/app/479516143/minecraft-free-no-download-game-hack PDF link annotation
    • https://my-private-intendant.com/images/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/apps-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://my-private-intendant.com/images/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/free-robux-place_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/earn-robux-com_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/roblox-people-girl_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/robux-generator_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-free-cards-hack_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/avatar-roblox-game_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • https://my-private-intendant.com/images/free-robux-wheel_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_003_off00004954.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4954 24772 bytes
SHA-256: 3b416ae1ff3d4de53faf99e4b054a91e377a45593a920583db3fec9e82612916
font_01_sfnt_off000080aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80AA 18292 bytes
SHA-256: 2f8f6932c6a5471fcd86ac874366aa199bea0908b5b9fba5acbbd4822a363b64

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