Malicious PDF — malware analysis report

Static analysis result for SHA-256 84ec7cb92d08acad…

MALICIOUS

PDF

34.0 KB Created: 2021-06-25 12:14:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 7f6700f7acdc1920de06413c7792f3aa SHA-1: 917817ce19ff8497a0909d1a932f8e0a7ca21864 SHA-256: 84ec7cb92d08acadd2acf7aec17a9f59979fdc6ca23848f0a1782b1051e8cf8f
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.co/app/431946152/1x1x1x1-in-april-fools-roblox-hacking-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/roblox-free-accessories_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/apk-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-make-a-roblox-group-for-free_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/hack-para-coin-master-sin-verification_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-roblox-groups_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coinmaster-com_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-heaven-daily-free-spins-and-coins-links_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-live_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/pubg-uc-free-online_GM1330123889.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/tiktok-free-skin-event_GM835599320.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_off00002e72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E72 22012 bytes
SHA-256: a9b8f480c8b867f6615dad9407b43c06d72a66bbc796c8ed753a4c1435380d8a
font_01_sfnt_off00005f46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F46 19224 bytes
SHA-256: 5522d39e88b8676a0b8d16e205887824d73dd2642b09791644c2e7a8af7400ac

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