Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddfd8cd23b577953…

MALICIOUS

PDF

35.9 KB Created: 2021-06-27 19:06:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c4b7d82fafcbb6090149f39a15864f56 SHA-1: da422c28fe7b214c3a262dcfcc470a046772e2b8 SHA-256: ddfd8cd23b57795396504a2f654bd46c8b132d8e58fbf3204eb7ca28ba06c4c8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting game hacks and cheats. The document body and heuristics indicate a lure for users seeking advantages in games like Roblox and Coin Master. The primary attack pattern involves directing users to potentially malicious websites that may host further malware or phishing content.

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-cheat-engine-table-2021-game-hack In PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-free-skins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/daily-coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/robux-hacking-website-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/earn-robux-today_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/mcpe-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-cheat-engine-walk-speed_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/escape-the-supermarket-in-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-exploit-roblox-without-cheat-engine_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-hack-kostenlos_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/pokemon-go-basic-vs-premium_GM1094591345.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/hack-roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/minecraft-pe-hacks-2021_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/get-50-00-robux-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_off00003223.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3223 23300 bytes
SHA-256: 6386a1a11ce1d06051e71dcf62d909722d307ce1f0f2fbfb8f4d13131e4a5643
font_01_sfnt_off0000668f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x668F 19276 bytes
SHA-256: 6a643c8a593dfb6f7df06b302a8e3c27e1ecfc3c4d0d625de24291880aa28e3c

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