Malicious PDF — malware analysis report

Static analysis result for SHA-256 498f07d4c2703719…

MALICIOUS

PDF

41.7 KB Created: 2021-05-16 03:00:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a2782112845a339947f90e38146d03ca SHA-1: d88e3e9d7b13301a7a61e5af29548a9c718cc01e SHA-256: 498f07d4c27037196f21a3e22641052ac332cdaffa5c5942c19293cdf46aa43c
100 Risk Score

Malware Insights

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

The PDF contains a lure related to hacking Roblox accounts and embeds a URL that points to known malicious redirector infrastructure. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were extracted, the embedded URL and the nature of the lure suggest an attempt to deliver a malicious payload or redirect the user to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 3

  • 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 https://netcdn.xyz/app/431946152/how-to-hack-someone In PDF document text
    • http://islamkennis.com/images/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://islamkennis.com/images/how-to-change-your-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • http://islamkennis.com/images/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://islamkennis.com/images/minecraft-windows-10-code-free_GM479516143.pdfIn PDF document text
    • http://islamkennis.com/images/online-hacking-tricks-coin-master_GM406889139.pdfIn PDF document text
    • http://islamkennis.com/images/free-coins-for-planet-master-game_GM406889139.pdfIn PDF document text
    • http://islamkennis.com/images/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://islamkennis.com/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://islamkennis.com/images/fb-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://islamkennis.com/images/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • http://islamkennis.com/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://islamkennis.com/images/free-roblox-adopt-me-accounts_GM431946152.pdfIn PDF document text
    • http://islamkennis.com/images/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://islamkennis.com/images/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://islamkennis.com/images/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://islamkennis.com/images/daily-free-spins_GM406889139.pdfIn PDF document text
    • http://islamkennis.com/images/inappropriate-roblox-games-2021_GM431946152.pdfIn PDF document text
    • http://islamkennis.com/images/how-to-make-a-group-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://islamkennis.com/images/robux-match_GM431946152.pdfIn PDF document text
    • http://islamkennis.com/images/coin-master-free-download_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
stream_003_off00004662.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4662 24628 bytes
SHA-256: 921f15f94773228b3b7d50b211de9778dddf94700f9b7c9e97ee8660537a0636
font_01_sfnt_off00007e9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E9D 18912 bytes
SHA-256: 9f53b096903929334954973b1f22b9a4d0ba47253044b0676b0b61e1e4f10122

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