Malicious PDF — malware analysis report

Static analysis result for SHA-256 92882cd920f1a093…

MALICIOUS

PDF

44.5 KB Created: 2021-06-10 17:34:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c6a792473de9a3e90cfb9c98b78287cf SHA-1: 5dcce6e665934ddec39cb4c1b4d6d5261dcaad46 SHA-256: 92882cd920f1a0933f185240cbadc496bea45bd33df1bfe2795902aa28af318c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lead to websites offering 'game hacks' and 'free generators', a common lure for phishing or malware distribution. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the presence of malicious links and the lure suggest the document is intended to redirect users to a compromised site for further exploitation.

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/how-to-get-free-stuff-on-roblox-catalog-on-phone-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/rbx-earn_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/code-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/feb-23-2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-coin-master-credit_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-use-redstone_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/download-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-heaven-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-500-spins-link_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hack-ios-2021_GM406889139.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_004_off0000511a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x511A 24260 bytes
SHA-256: 617c05bacd5f19cf027063e72fb079b36358b273fd33a74765d111380e9d55b2
font_01_sfnt_off000088aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88AA 19192 bytes
SHA-256: b0476f0239e35278319b23ac3c90a526175ff082cb8e3d3fbd38c6301a4ca976

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