Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c51a196a98b6750…

MALICIOUS

PDF

35.1 KB Created: 2021-06-30 05:43:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 98b9f36f48a9258204b9eb4709ab8fc8 SHA-1: 5006c8ecb10171c6bd366a704a4fded903f1062c SHA-256: 3c51a196a98b6750fa6c5fe1aecb794ca6ef21135ab4bc2b1e1d215e401307e9
122 Risk Score

Malware Insights

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

This PDF document employs a common lure of free game hacks and currency to entice users. It presents a fake CAPTCHA or verification prompt, a known social engineering tactic, to trick users into interacting with a malicious link. The primary link, http://netcdn.co/app/431946152/free-mobile-360-roblox-game-hack, likely serves as a redirector to a payload or phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/free-mobile-360-roblox-game-hack PDF link annotation
    • http://lib.teknik.unimal.ac.id/repository/counter-blox-roblox-offensive-hack-v3rmillion_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/coin-master-promo-code-2021_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/how-do-we-get-free-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-roblox-hats-2021_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/cheat-roblox-jailbreak-2021-money-free_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/tiktok-free-likes-no-verification_GM835599320.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/i-want-robux_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/50-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/faces-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/hack-scripts-for-roblox-download_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/dupe-tool-hack-roblox-noo-virus_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/free-robux-working_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_off00003074.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3074 22508 bytes
SHA-256: 5304aef84d8f7b123892a53a04179434c773f10a5e5e79447abacab2a4d443af
font_01_sfnt_off000062d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D1 19480 bytes
SHA-256: 3ed9a79aded31df3a882ec741c9334d1f484d7f626aed4244e492cc272bb8ec6

Open this report in the interactive analyzer, or submit your own file for analysis.