Malicious PDF — malware analysis report

Static analysis result for SHA-256 53941327d85ba457…

MALICIOUS

PDF

45.8 KB Created: 2021-06-01 01:01:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: df73857c02acbfc90daf5fa439628afd SHA-1: 80c86875c410258447b1b5b078e7f2e27da6538f SHA-256: 53941327d85ba45733fa79ba1fde7c3b651ee99cfaac2813d81a477313a90140
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, specifically advertising 'game hacks' and 'free generators' to lure victims. The primary redirector URL is https://netcdn.xyz/app/431946152/roblox-booga-booga-fly-hack-may-26-2021-mojo-game-hack, which is associated with malicious activity. While no scripts were extracted, the PDF structure and embedded links strongly suggest a social engineering attack aimed at driving users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.xyz/app/431946152/roblox-booga-booga-fly-hack-may-26-2021-mojo-game-hack In PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/free-robux-games_GM431946152.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/speed-run-4-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/roblox-free-gamepasses_GM431946152.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/how-to-hack-dragon-ball-rage-in-roblox_GM431946152.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/free-avatar-animations-roblox_GM431946152.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/troll-roblox-avatars-free_GM431946152.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/how-to-hack-any-pokemon-into-project-pokemon-roblox_GM431946152.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/hack-to-get-money-on-bloxburg-roblox_GM431946152.pdfIn PDF document text
    • https://caotangmen.org/wp-content/uploads/sites/17/fsqm-files/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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_off00005213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5213 25276 bytes
SHA-256: f41e32f6a3ed4beb6be8fcb86130023dc11afd8e7c240ed4fd4d04313faf0cf2
font_01_sfnt_off00008c18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C18 19768 bytes
SHA-256: 23a6a7001979849784292a48c66c8d8eb122dc739d33fa7cbca85bb4ee6efcdc

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