Malicious PDF — malware analysis report

Static analysis result for SHA-256 995619f273f08c67…

MALICIOUS

PDF

45.3 KB Created: 2021-06-09 02:41:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 3236eaac10df4938fda21670edad9fb1 SHA-1: d24de2f81bad30af2fc266187a1d80d4796225a9 SHA-256: 995619f273f08c67f8a0faa4735e14a03b73e7a45a42624be404ba2b359c3bfb
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 0.9864

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/cheat-roblox-menu-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/try-minecraft-free_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-spin-coin-master-app-download_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hack-apk_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/how-to-deal-with-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/code-for-pubg-uc_GM1330123889.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-games-download-free_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/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-headless-head-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-hack-roblox-with-winrar-pc_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-robux-on-phone_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_004_off00004f88.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F88 26916 bytes
SHA-256: 6494dfc88f4508790591b546ad0d5939d7b4312ec36d2c680935b4ba2f378daf
font_01_sfnt_off00008d61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D61 18616 bytes
SHA-256: 67df34243644409a5c53f74ed25a839984c4d65820d78abd92435b65debcacf9

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