Malicious PDF — malware analysis report

Static analysis result for SHA-256 766e616224327ffe…

MALICIOUS

PDF

45.6 KB Created: 2021-05-16 12:28:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9c9ad1a00ee2ff95cae9e9eeb4ba838d SHA-1: cb80b3d08b9d7a3d6e3c5f2e5e93c047a64348cf SHA-256: 766e616224327ffe0ae3b4fd1d7e0ae3d26ae46e4dfd27b364d19304fe932f0f
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 0.9507

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/406889139/coin-master-unlimited-spin-apk-free-download-game-hack PDF link annotation
    • https://hassel-event.de/images/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • https://hassel-event.de/images/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/no-robux_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/coin-master-spin-link-hack_GM406889139.pdfIn PDF document text
    • https://hassel-event.de/images/hack-coin-master-apk-ios_GM406889139.pdfIn PDF document text
    • https://hassel-event.de/images/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://hassel-event.de/images/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/how-to-get-more-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://hassel-event.de/images/roblox-money-hack_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/coin-master-bonus_GM406889139.pdfIn PDF document text
    • https://hassel-event.de/images/coin-master-free-spin-link-today-50_GM406889139.pdfIn PDF document text
    • https://hassel-event.de/images/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/coin-master-hack-tool-without-verification_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a43.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A43 25912 bytes
SHA-256: 25d392a4dd037826da918590726eac5099e0e325dc26e25c56dc581fc7784609
font_01_sfnt_off000083b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83B2 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008d64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D64 19084 bytes
SHA-256: c2d82cd4a12004e31f0bd3c8b1caf06db58ba118ed59957898480102bbe81bed

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