Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f876c37bb44c0a5…

MALICIOUS

PDF

42.6 KB Created: 2021-05-16 00:20:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6b610267cfc1ff7eac63484738693076 SHA-1: ea5de543e87305ae9aab91a22a0eb7cf6d2f73f7 SHA-256: 3f876c37bb44c0a5f0483cda33381c3b30a3d07ad2e75255f63ed1f5eb8840b5
100 Risk Score

Malware Insights

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

The PDF contains embedded links that point to known malicious redirector infrastructure, specifically targeting users interested in game hacks and cheats. The document body and extracted URLs suggest a lure to download potentially unwanted or malicious software disguised as game modifications. The ML classifier also strongly indicated maliciousness.

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/479516143/minecraft-1.12-2-hacked-client-game-hack In PDF document text
    • http://whiteyaknepal.com/userfiles/files/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/coin-master-hack-spins-android_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/facebook-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/minecraft-hack-ios_GM479516143.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/roblox-free-models_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/coin-master-free-coins-amp_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/how-to-become-a-hacker-in-roblox_GM431946152.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_off00004b36.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B36 25228 bytes
SHA-256: 8d5c43d2807cbb1922aea109874e60abeb736bb04582b2d9069b7f339d845243
font_01_sfnt_off0000847a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x847A 18280 bytes
SHA-256: 82135226d76a6244ad3fef1c984a62d44c7236218efe4707925baddb6c5b4f8a

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