Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d06ecbf6cb8d560…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 13:46:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a71e2c43ac5c73fac889bf7e42820921 SHA-1: e0cb1b5de0b9ab7203e0ef8aecde2cae92c8c952 SHA-256: 2d06ecbf6cb8d56010ec072c36889840ea68e0d514593b305763d844cb5a4e64
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure of game hacks and free currency to entice users into clicking a link. The primary link, http://netcdn.tw/app/406889139/coin-master-free-spins-haktuts-game-hack, redirects to a website that likely hosts a malicious payload or further phishing content. The ML classifier strongly indicated maliciousness, and the presence of multiple game-related lures reinforces the social engineering aspect.

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/coin-master-free-spins-haktuts-game-hack PDF link annotation
    • http://library.feb.unila.ac.id/rfeb/repository/minecraft-pe-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-tiktok-views_GM835599320.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/earn-robux-today-earn-robux-today_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-level-up-hack-on-roblox-phantom-forces_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/pubg-uc-hilesi_GM1330123889.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/cch-ly-robux-free-minhmama_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-robuxs-no-human-vefication_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/100-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-o-get-hacks-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-facebook-hack_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-draw-roblox-anime_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/tiktok-free-views-hack_GM835599320.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-hack-and-know-what-people-are-inmm2-roblox_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_off000031d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31D0 23060 bytes
SHA-256: 2aab1ae05d7cb2ec22a835f8f143482291bb829a180288b2f78f5568291f65ff
font_01_sfnt_off0000655b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x655B 18484 bytes
SHA-256: f4f9ad1f9ed7968e2344e2d1f3b165ae8c607e70d6a002aee90d609eb2aca606

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