Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c2e26a94bdb17b6…

MALICIOUS

PDF

44.2 KB Created: 2021-06-04 00:35:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: d755bf39068c207c2cbd9fc458a828a7 SHA-1: 73face0904a86c311f9fd40a2ad5af0047f336b3 SHA-256: 8c2e26a94bdb17b6e1f0fb22af16b9aa3d4ff00dc6e324819bf4b8c7deaef833
122 Risk Score

Malware Insights

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

The PDF document contains a lure for game hacks and free Robux, presenting a fake CAPTCHA to trick users into clicking a link. This link, 'https://netcdn.online/app/431946152/robux-no-human-verification-2021-game-hack', likely leads to a malicious download or phishing page. The document's structure and content strongly suggest a social engineering attack aimed at user execution of a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/431946152/robux-no-human-verification-2021-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info//repository/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/robux-generator-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-shield-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-roebucks_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/get-coin-master-cards-free_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/inappropriate-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-script_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/roblox-free-wings_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/hack-de-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coinmaster-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-minecraft-account-reddit_GM479516143.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_off00004e94.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E94 24744 bytes
SHA-256: ff2386e8c18c3e49a7a125bd0e0c69aef07cecf5120ddbbd85d2cd82b862b98f
font_01_sfnt_off00008762.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8762 19100 bytes
SHA-256: cb8809738aabb1441b1427e812c482b7c8f50740efdb0db68f9cd49fa431659e

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