Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f743394044de832…

MALICIOUS

PDF

35.7 KB Created: 2021-06-25 06:03:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ecb781d67d1056b949f3908d1deebb72 SHA-1: 70ae812e35268dec912b147dd70ae7da1f975cfc SHA-256: 1f743394044de83288403593ae63c327104477bcf6f51c44f5013c8360c09ec5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free in-game currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, likely serving as a gateway to further malicious content or exploits. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a phishing or scam 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/how-to-hack-roblox-on-ipad-2021-game-hack In PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/www-roblox-com-free_GM431946152.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/how-to-hack-in-to-builder-mans-acount-roblox_GM431946152.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/hacking-mad-games-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/how-to-make-a-free-robux-game-v3rmillion_GM431946152.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/how-to-get-a-free-shoulder-pet-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/how-to-fly-hack-in-roblox-phantom-forces-2021_GM431946152.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/how-to-inject-code-into-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/roblox-hack-mega-13_GM431946152.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/roblox-hack-week-2021-2_GM431946152.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/case-island-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/roblox-hacked-pour-avoir-des-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/200-robux-free_GM431946152.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/pastebin-com-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/roblox-cheat-codes-n-text_GM431946152.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/free-robux-project-gamesnet_GM431946152.pdfIn PDF document text
    • https://www.colegiodearquitectoscdmx.org/wp-content/uploads/fsqm-files/free-robux-no-verify_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_off000032ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32EE 22360 bytes
SHA-256: 26af40fdbf087ba2ef1781c98a9050982dd376fd1ccdf6a0bdbf15dac144d87d
font_01_sfnt_off000064ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64AE 19572 bytes
SHA-256: d84f9015adfa5df7311cb5ac0b7b3945bc851437aa777fb65e4208d2357c4f1b