Malicious PDF — malware analysis report

Static analysis result for SHA-256 0be3650727b64a79…

MALICIOUS

PDF

46.0 KB Created: 2021-05-31 13:53:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bf91aaa8c5e66a853a4c3edeba1ee1af SHA-1: bf9098642d1afe26cdc845d347062dee86275b15 SHA-256: 0be3650727b64a79fcc78a182ebc2bd6db4c93bb433d846f32a799ac38ac0514
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting a "game hack" for Roblox. The ML classifier also flagged this PDF as malicious. The embedded URLs and the nature of the lure suggest an attempt to redirect users to potentially harmful websites, likely for credential harvesting or further malware delivery.

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/how-to-get-items-for-free-in-roblox-2021-game-hack In PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/what-do-you-do-if-you-get-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/free-robux-come_GM431946152.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/tiktok-free-fans_GM835599320.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/how-to-get-free-robux-in-seconds-2021_GM431946152.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/claim-free-robux_GM431946152.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • https://registration.inspiracio.hu/wp-content/uploads/fsqm-files/roblox-free-items-hack-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 2

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
stream_004_off000054d8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54D8 26012 bytes
SHA-256: f5a3b676d62637962cb7a2985c11f1e9adfe207abcf113a91f5b863e70676c4e
font_01_sfnt_off00008f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F6D 18876 bytes
SHA-256: daa1ace9a96570a9d605b20ba988434ab5ad5616f5484e1c0f95b5a41f7c6c4a

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