Malicious PDF — malware analysis report

Static analysis result for SHA-256 f11b37df5a91ff90…

MALICIOUS

PDF

41.6 KB Created: 2021-05-17 07:15:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6a2a50a530a04e7464dd8eebf562956b SHA-1: 7eb240a6a1b58a9e6c48a755b5af62e286e561ff SHA-256: f11b37df5a91ff9078d746123aa5f0d1a852947587b56f7c6684f7f44a9e1b47
100 Risk Score

Malware Insights

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

The PDF contains embedded links and a visual download button, explicitly directing users to download a "Coin Master Hack Apk" and other game-related cheats. The primary URL, https://netcdn.xyz/app/406889139/coin-master-hack-apk-3.5-8-game-hack, is flagged as a malicious redirector, indicating the likely intent to deliver malware. The ML classifier also strongly flagged this PDF as malicious.

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-hack-apk-3.5-8-game-hack In PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/coin-master-free-daily-spins-today_GM406889139.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/free-online-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/roblox-avatar-girl_GM431946152.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/how-do-you-earn-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/new-free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/free-roblox-girl-hair-not-a-model_GM431946152.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/coin-master-2021_GM406889139.pdfIn PDF document text
    • https://barokahutama.co.id/ckfinder/userfiles/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049ef.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49EF 23720 bytes
SHA-256: 390a7bb31f811d5af7d59378312711c17bd575ea53abb91e44b47bc68ebe4b41
font_01_sfnt_off00007f95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F95 18476 bytes
SHA-256: c19804e170ad681b642e15085f81d8c7820303c17e8aadab2cfd4b60eee3b3df

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