Malicious PDF — malware analysis report

Static analysis result for SHA-256 de9c544b2386b013…

MALICIOUS

PDF

35.2 KB Created: 2021-07-04 04:32:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 72bdb58dbd1122dfbb8c34e8827de4fb SHA-1: df9ba38581ad50a17a2467350d099b3c49ee6ef8 SHA-256: de9c544b2386b013296ed84bdb966411f61d6d989397a3eb19bc07cbbabb3d7a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to malicious redirectors and further malicious PDFs, masquerading as game hacks and free currency generators. The primary redirector URL is http://netcdn.tw/app/406889139/static-moonactive-net-link-game-hack. The document body and heuristics indicate a lure for users to click these links, likely leading to malware download or credential harvesting. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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.tw/app/406889139/static-moonactive-net-link-game-hack In PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/adonvip-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/can-i-make-a-custom-character-morphs-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/synapse-roblox-hack-download-free_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/login-to-tiktok-free_GM835599320.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/free-mobile-24-robux_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/coin-master-ad_GM406889139.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/roblox-promocodes-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/coin-master-links-for-free-spins_GM406889139.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/oprewards-com-earn_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-get-traded-pokemon-to-evolve-without-trading_GM1094591345.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/https-roblox-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-hack-roblox-jailbreak-money-with-cheat-engine_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_off000033a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33A7 23028 bytes
SHA-256: 883add4d7e621b010883a71cb5deb565c17ee16b73faf19baf4426de1006e8d0
font_01_sfnt_off00006776.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6776 18120 bytes
SHA-256: 2bdc5decaccb7d4ae3295b752a0c8d06cd17cbf50cc07d3540fe8225f8807678

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