Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab467c2180b316d6…

MALICIOUS

PDF

34.7 KB Created: 2021-06-27 21:41:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3eb90334d2ce95abf3210eaaf92b210d SHA-1: 4c3bebb1c56cb68c2e6d46ac772f70f0421da600 SHA-256: ab467c2180b316d6eb12976b4b51968412cf5115a21916b928320dee77fdf83c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game cheats and free items to entice users to click on a link. The embedded URL, http://netcdn.co/app/431946152/cheat-codes-for-prison-escape-simulator-roblox-game-hack, is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to a malicious site, likely for further exploitation or credential harvesting.

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/cheat-codes-for-prison-escape-simulator-roblox-game-hack In PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/roblox-bloxburg-free-game_GM431946152.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/roblox-hacks-and-cheats-for-robux_GM431946152.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/free-spins-and-coins-from-coin-master-game_GM406889139.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/get-free-robux-no-human-test_GM431946152.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/roblox-free-stuff-2021_GM431946152.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/hackear-coin-master-android_GM406889139.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/how-to-get-free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/tryrbx-site-free-robux_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_off00003044.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3044 21800 bytes
SHA-256: 9cc382a236e80c3326120a3779bb87f8d04c29f2b22c8148f518f6056c6d082c
font_01_sfnt_off0000602b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x602B 19944 bytes
SHA-256: a1b79782cf776019410adb7387ede85cf9679083a892b50d68956db62e424722

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