Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f760e6021e72539…

MALICIOUS

PDF

42.9 KB Created: 2021-05-16 13:48:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bbc79cc70f0e480808deb4ac11ef6781 SHA-1: 591160b278f9554cf84c309f91722df1621faad2 SHA-256: 3f760e6021e72539b3bc36cee29a0ad97355da2f1a8a5fa2c3b714e4e040361a
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded links and a visual download button, all pointing to external URLs that are flagged as malicious redirectors. The document body text, though partially obfuscated, mentions "Coin Master 3.2 Mod Hack Unlimited" and includes URLs that appear to be lures for game hacks or cheats. This suggests the document's primary purpose is to trick users into downloading potentially unwanted or malicious applications.

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/406889139/coin-master-3.2-mod-hack-unlimited-game-hack In PDF document text
    • http://caraless.com/images/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://caraless.com/images/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/coin-master-jackpot-madness-hack_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/free-spin-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/free-400-spins-coins-master_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://caraless.com/images/robux-today_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/is-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://caraless.com/images/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/toolbox-for-minecraft_GM479516143.pdfIn PDF document text
    • http://caraless.com/images/coin-master-online-hack-2021_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_off00004698.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4698 27176 bytes
SHA-256: 5589e603b9fc741bbb202157293d5ef8d86749eee97a65b0f4769eb52c19536f
font_01_sfnt_off000083f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F7 18772 bytes
SHA-256: ac1fd3966779f84f19650f5e7bf0a5ad3116628acf0836c9bf978cdb1b0100fe