Malicious PDF — malware analysis report

Static analysis result for SHA-256 d68be6bbf4fdb52f…

MALICIOUS

PDF

48.7 KB Created: 2021-06-11 09:11:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c9a3c5900674bdb276781e2093868a7e SHA-1: 761b370fda68abc48940758471ac9cbe6787c8d3 SHA-256: d68be6bbf4fdb52fad494457f1469b492b15bbdc669fafc468c49150b74688dd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, specifically advertising "free generator / game hack" lures. The primary malicious URL identified is https://netcdn.tw/app/431946152/vip-server-free-roblox-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering attack aimed at driving traffic to potentially malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.tw/app/431946152/vip-server-free-roblox-game-hack In PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/game-give-free-robux_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/optifine-mcpe_GM479516143.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/earn-free-robux-right-now_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/robux-codes_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/auto-clicker-for-roblox-mac-free_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-free-account_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/moonactive-coin-master_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-free-spins-app-android_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53E5 25940 bytes
SHA-256: 30319c2852b32ba286f2a356c751fb580482b32eb0ea7a165152d0f44977ee06
font_01_sfnt_off00009076.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9076 3036 bytes
SHA-256: caee8ec630d81bbec899148817c3a4e609c72c88992f21e5ab4597b46845df16
font_02_sfnt_off00009ae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AE3 18492 bytes
SHA-256: 996be6070f61b93c26bd145425e52cbad66155efcadb7cc6a234267ebaec5f06

Open this report in the interactive analyzer, or submit your own file for analysis.