Malicious PDF — malware analysis report

Static analysis result for SHA-256 e444e9dc6dd66de8…

MALICIOUS

PDF

28.0 KB Created: 2021-05-10 19:01:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5a93b9dbb7de8c1ddcb41cd451e00276 SHA-1: 99dc1d8fd5bb4401456120468219fd7f4be75370 SHA-256: e444e9dc6dd66de8316621efacd98e5835b1f1e9e35f3d41ae74042753cab9e3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, specifically advertising 'free generators' for games like Roblox and Coin Master. The primary lure URL is https://netcdn.xyz/app/431946152/roblox-g-game-hack, which is part of a network of sites distributing potentially unwanted or malicious content. The document's structure and embedded links strongly suggest a phishing or scam attempt designed to lead users to further malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9747

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 https://netcdn.xyz/app/431946152/roblox-g-game-hack In PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/free-spins-coin-master-links-blogger_GM406889139.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/free-coins-for-planet-master-game_GM406889139.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/coin-master-apk-hacked-3526_GM406889139.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/free-minecraft-shaders_GM479516143.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/irobux-com-redeem_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/robux-sign_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/free-account-roblox-2021_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/how-to-get-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/coin-master-hack-mod-apk_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
font_00_sfnt_off00002155.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2155 19988 bytes
SHA-256: 4b8688e7a235f79ae6448d9a6dc7b32716ddd5b34d2735e33a40642e777dbbb5
font_01_sfnt_off00004bdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BDF 17784 bytes
SHA-256: 4bd2d0041dee7b7796a1d14ead449b1e4ac2afb962c20115eab39ba9eb76df9f