Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdadc734dd800d13…

MALICIOUS

PDF

33.8 KB Created: 2021-06-30 01:35:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f6e0ededa47177d06cdc710069f4c5a8 SHA-1: f29a6b62898ed0626726dbdbb3a8f0b3fd547025 SHA-256: fdadc734dd800d13ba69be823d196eb7c99a56754bd8430364e88b1e38ebacb8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded URLs suggest a lure for game-related cheats or currency, likely a phishing or scam attempt. The ML classifier also strongly flagged this PDF as malicious.

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/jailbreak-roblox-free-money-glitch-game-hack In PDF document text
    • http://croatia-flyfishing.com/files/free-followers-on-tiktok-no-human-verification_GM835599320.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/how-to-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/free-spins-and-coins-com_GM406889139.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/roblox-e-free_GM431946152.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/make-free-robux_GM431946152.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/free-roblox-adopt-me-accounts_GM431946152.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/free-minecraft-severs_GM479516143.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/coin-master-daily-spin-link-app_GM406889139.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/how-to-get-300-robux-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/free-robux-redeem-codes-list_GM431946152.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/free-ways-to-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/how-to-teleport-using-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/stock-speed-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/tiktok-free-like-followers_GM835599320.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_off00002d4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D4F 21820 bytes
SHA-256: 0b33834a4bb4e117629167ddf6f77f689bf3193cc737586ba7419a04b992b8d1
font_01_sfnt_off00005d50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D50 19752 bytes
SHA-256: 27649c0a523c54bfb769e020a5a11f2056855832e6064dbddcdc28852846cc20

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