Malicious PDF — malware analysis report

Static analysis result for SHA-256 666719b457fa2694…

MALICIOUS

PDF

35.5 KB Created: 2021-07-08 01:09:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: d47c4bf02010692f409289032d297177 SHA-1: abc8dc0835cabcb67358e35e7aea42a6f50d11ec SHA-256: 666719b457fa26943f5c6c97be1397f85c5e4ba3427c98b9cdd83f2cb4f48e4e
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/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-doge-hat-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/forum-comment-cheat-sur-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-medieval-hood-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/3-games-that-promise-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/robux-free-site_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/rewardex-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-plus-download-free_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-vip-on-roblox-top-model_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-free-robux-copy-paste_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-no-downloads-needed_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-jailbreajk-new-hack_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/rbx-hut_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-spins-october-28-2021-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-roblox-accounts-with-obc-2021-discord_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/nopde-engine-roblox-hackes-prison-life_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-robux-on-roblox-2021_GM431946152.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-hacked-version-download_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_off00003364.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3364 22808 bytes
SHA-256: 8e592e3956b701ead2e91f18855f6c7e014f1a8a3bc0e2b8702107f570713ed2
font_01_sfnt_off00006673.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6673 18908 bytes
SHA-256: 22eea22e93e3a2ab8e7a2e6bfe46b3c4bbbdffc0ed3854b3ba75aeac54633c45

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