Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cfeff09dc2baa92…

MALICIOUS

PDF

35.5 KB Created: 2021-06-26 06:07:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dcd98d5ff3dd69586d2461f20414f5a0 SHA-1: ee55b9a4609e1fa3992d28b3900eb79fe05ae0e5 SHA-256: 9cfeff09dc2baa92aa91c64667dfd5203ba1e37794a4a1acec5791e18e1540ed
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of 'free Robux' and game hacks to entice users. It contains a critical heuristic firing for a malicious redirector link, pointing to http://netcdn.co/app/431946152/robux-hacks-that-work-2021-game-hack. The document body and embedded URLs reinforce this theme, suggesting the primary goal is to redirect users to potentially malicious websites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/robux-hacks-that-work-2021-game-hack In PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/roblox-cheat-codes-for-vehicle-simulator_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/shower-simulator-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/hackear-net-roblox_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/roblox-accounts-free-2021_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/roblox-murder-mystery-cheat-engine-money-hack_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/how-to-download-roblox-apoc-hacks_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/https-www-roblox-com-free_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/how-to-make-free-face-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/roblox-how-to-sell-tshirts-for-free_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/roblox-free-synapse-x_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/roblox-nike-free_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/how-to-get-free-robux-hack-ipad_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/unpatchable-robux-hack-code_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/programe-pour-hacker-roblox_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/how-to-get-roblox-bucks-for-free_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/youtube-how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-remy-roblox-id_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-robux-hack-no-survey-no-download-2021_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_off0000314e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x314E 22664 bytes
SHA-256: 88120a404e9e88bb0cc9cc5a1893dd432f345b12a50a7f0f92e59db0fdb89b64
font_01_sfnt_off00006406.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6406 19592 bytes
SHA-256: c5953f9f3795b6b593e37f491f7ca5284695c7ace8721c8a535c334cb49cf612

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