Malicious PDF — malware analysis report

Static analysis result for SHA-256 806c3df259add046…

MALICIOUS

PDF

44.3 KB Created: 2021-06-08 23:21:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 42727cdebc622aab8a8343d66c7524f3 SHA-1: ce7fe82a1a1348e35b6df9120fac98398ae8588d SHA-256: 806c3df259add046771cc47bcb1e5ec86e1d92d4141e596bb197fa5b09912191
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 0.9865

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.tw/app/431946152/free-robux-scam-ad-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-hack-a-account-roblox-v3rm_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/get-free-lives-on-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-online_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-earn-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/hack-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-online-free-no-download_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hack-version-download-2021-android_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-free-bundles_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_off000050d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50D0 24824 bytes
SHA-256: 791d288964d5ea6ce1bb8112521662f7318529b71fca3a3d49d810439675a100
font_01_sfnt_off00008970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8970 18676 bytes
SHA-256: a8e564afe046a0acc97f757ed12f2b3d4dec40cfe061afc2cc30b45675ddb049

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