Malicious PDF — malware analysis report

Static analysis result for SHA-256 9794202f10f84244…

MALICIOUS

PDF

43.5 KB Created: 2021-06-14 01:20:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: bf4ee7d6b4c6a13b81974fb15752c11e SHA-1: 1a38c499f7f419b714eff85f3ad91485d2b31df2 SHA-256: 9794202f10f84244500535ad87e3f4692dc2921032f23ab9f797b648d803fda6
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

This PDF document contains numerous embedded links to external websites, many of which are structured as SEO-optimized PDF repositories. The primary URL, http://netcdn.co/app/431946152/btools-hack-roblox-download-2021-game-hack, suggests a lure for game cheats or hacks. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such links, increasing the likelihood of malicious intent. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/btools-hack-roblox-download-2021-game-hack PDF link annotation
    • http://opac.ekonomi.up45.ac.id/repository/hack-coin-master-android-game_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-offline-hack_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/roblox-sign-in-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/how-to-fly-on-roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/microsoft-robux_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/roblox-games-with-free-boombox_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-app_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-free-spins-that-really_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/how-do-you-get-admin-commands-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/hacks-para-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/how-do-you-get-free-robux-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/roblox-roblox-games-for-free_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/is-coin-master-free_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B98 24912 bytes
SHA-256: 99db51be5487e26e6929a3bd13a59acc2e067b3738047c0c059c8915f98a0c7d
font_01_sfnt_off000084b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84B5 19192 bytes
SHA-256: 92ca208a7bd776003714c61fddfec8c54c63cacac85ce678aa439082a295c784

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