Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb36ba6b6bc85ce0…

MALICIOUS

PDF

35.3 KB Created: 2021-07-03 19:50:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 787fab10e9c5e2bbacc86597f49faad9 SHA-1: 7634f061b262d582af0b3a0694c8b82262d97ed5 SHA-256: eb36ba6b6bc85ce0fec6cb569d1a1f1e4b88f2a3b9e2ba1f2079c70ba93f7bbe
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-free-spins-link-today-new-2021-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-clothes-roblox-group_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/only-working-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/tiktok-free-coins_GM835599320.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/best-free-troll-avatars-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-tools_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/oprewards-com-earn_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coinmaster-com_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/what-is-coin-master-app_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-roblox-account-with-robux-on-it_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/dailyrobux_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_off00003127.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3127 22808 bytes
SHA-256: 266e3bffd56279446d6fd8ea2513efc466a12c7d4aee7a039601b89c15277bbb
font_01_sfnt_off00006441.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6441 19264 bytes
SHA-256: 772d40e0bb928acb9341cb75f2b15664b8c4900532e51e1f27089a6d027a4e0b

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