Malicious PDF — malware analysis report

Static analysis result for SHA-256 00fde0548b3b16d0…

MALICIOUS

PDF

34.1 KB Created: 2021-06-25 15:20:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 672ba928c94b98c111aea8175779f3c6 SHA-1: 05c9cacac392c61f8b0b615ffb2fc27ddfb93628 SHA-256: 00fde0548b3b16d06e32f2ce2f2942872d2d6df4caf8e37e97d97796534e8aaf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector, which is designed to lure users into downloading potentially unwanted or malicious content. The document body and embedded URLs suggest a scam related to free game currency or hacks. No scripts were extracted, but the presence of malicious links and the lure indicate a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-robux-hack-ohne-telefonnummer-game-hack In PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-free-spins-link-deutsch-ios_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-free-coins-link-facebook_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-images_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-spin-online-tool-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-spins_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/minecraft-mod-updater_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-connection-lost_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/wurst-client_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/game-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-rape_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/hack-to-send-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-download-hack-ios_GM406889139.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_off000030ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30AE 21428 bytes
SHA-256: 1748ab4626542a4181bf1a2212239981b6d8c64f69b569d34fb39e9469bc76bb
font_01_sfnt_off00005f79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F79 19388 bytes
SHA-256: 1a80a66396b7f82c5c4ecb5286dea579bdc3dd4466b8a101b15fd75afec99860

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