Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7cc05e241e6ea9a…

MALICIOUS

PDF

35.1 KB Created: 2021-06-27 07:22:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: aa46eae2dbb06ff2ad82ce03774342e0 SHA-1: bdab2e8326bf026dfc697aaaccf497ff1c422c23 SHA-256: e7cc05e241e6ea9a7f9132cc26bfba0598bd872213134f009214f6a600ac8782
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a site offering 'free generators' and 'game hacks', specifically mentioning Roblox. The ML classifier and heuristic firings strongly indicate malicious redirector infrastructure. The document body, though partially corrupted, contains similar URLs and text related to game hacks, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-hack-v6-5-game-hack In PDF document text
    • http://www.3d-gold.com.hk/upload/files/coin-master-hack-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/god-mode-roblox-cheat-engine-hack_GM431946152.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/free-robux-place_GM431946152.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/roblox-cheats-on-girlfriend_GM431946152.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/coin-master-free-400-spin-link_GM406889139.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/roblox-hack-no-verify_GM431946152.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/free-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/roblox-cheat-codes-for-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/robux-roblox-hack-apk_GM431946152.pdfIn PDF document text
    • http://www.3d-gold.com.hk/upload/files/bot-roblox-game-free_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
font_00_sfnt_off00003173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3173 22588 bytes
SHA-256: d35049bcdf1249f90f882d3dd94451aa33a4f20b135a7df054f718a01c74210a
font_01_sfnt_off000063ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63AE 19092 bytes
SHA-256: f285a23bc91ea2ba29ee45e826d53f3323854710cde51c00e706fa33ce9e219c