Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9b76c9e6c31c47b…

MALICIOUS

PDF

34.5 KB Created: 2021-06-18 06:50:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cf88878f62b600dfff6eeafa5b702252 SHA-1: e0a77ae582622b2725495e3533733a67b3884ba7 SHA-256: c9b76c9e6c31c47b1559b99939ba22a77c71607be72a04f60e7a42b18415ae65
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting free game hacks and generators. The document body and heuristics indicate a lure designed to trick users into visiting these sites, likely for further malware delivery or credential harvesting. No scripts were extracted, but the presence of malicious redirector links and the overall theme strongly suggest a phishing or malware distribution attempt.

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-free-dominus-hack-game-hack In PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/how-to-get-free-robux-208-legit_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/free-bux-roblox_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/free-roblox-catolog_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/free-roblox-giftcard-games_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/roblox-cheats-for-laptop_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/free-and-easy-robux_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/free-robux-from-a-game_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/roblox-counter-blox-roblox-offensive-hacks-very-op_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/gamepasses-free-pastebin-roblox_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/roblox-rocitizens-money-hack_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/roblox-password-hacker-no-download_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/roblox-download-free-windows-10_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/free-roblox-account-2021-december_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/roblox-promocodes-hack-robux_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/roblox-steves-one-piece-hack-devil-fruit_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/free-roblox-video_GM431946152.pdfIn PDF document text
    • https://registracomodo.it/wp-content/uploads/fsqm-files/free-shoutouts-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE8 22200 bytes
SHA-256: aab28c80461125f4d3b5afb65a95aea53b2006c31b195e216db254d78c26fef9
font_01_sfnt_off0000616a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616A 19324 bytes
SHA-256: 6ee57a147606599f09244586d346b01dbe37019b26281b20d60097b0dd8b3bc4

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