Malicious PDF — malware analysis report

Static analysis result for SHA-256 d43eef3d48d2508a…

MALICIOUS

PDF

33.4 KB Created: 2021-06-25 20:45:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fb0949594446f0e64ebf17157468c31f SHA-1: b9648b98306dcd715ec3edaa0031a3a832ad9c78 SHA-256: d43eef3d48d2508a00525732d069c9aa4c750f4b1cff33b55ce1216b5bb7f90e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or scam attempt. The primary link, http://netcdn.co/app/431946152/roblox-hacks-mpgh-game-hack, is identified as a malicious redirector. The document's content and embedded URLs strongly suggest an attempt to lure users to malicious websites, likely for credential harvesting or malware distribution. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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/roblox-hacks-mpgh-game-hack In PDF document text
    • http://empresa-venta.hr/files/how-to-change-your-name-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-dominus-roblox-mobile_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-to-hack-roblox-passwords-2021_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/www-rubux_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://empresa-venta.hr/files/give-free-robux_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-free-spins-glitch_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/kron-hack-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-coins-for-planet-master-game_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-free-spins-link-no-verification_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/cute-roblox-clothes-free_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/minecraft-dungeons-download-free_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_002_off00002be0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2BE0 22264 bytes
SHA-256: 406badbfbf54b38338ef4b8376d6b5eeacb955ed981ea19d5de19bb1007783c7
font_01_sfnt_off00005d22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D22 19192 bytes
SHA-256: e86cea368446daa0c99b0b3ddb9081307decb127d4e3b6550182638386d0be29

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