Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c1195db6af2ff95…

MALICIOUS

PDF

34.6 KB Created: 2021-06-28 03:47:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e4e53a8c683df68d8f0f00043bc88b0c SHA-1: 2c3d8f91635268dd24a57daf252a3ee500a62241 SHA-256: 8c1195db6af2ff95c396ac5df58063336aeca2d3cc8790521b1e29dabc020390
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free Robux and game hacks to entice users. It contains multiple embedded URLs, including a primary malicious redirector at http://netcdn.co/app/431946152/free-robux-gift-cards-live-game-hack. The document's structure and embedded links suggest it is designed to lead users to potentially malicious websites, likely for credential harvesting or malware distribution.

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/free-robux-gift-cards-live-game-hack In PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/wwwcoin-master-free-spincom_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/daily-free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-jailbreak-hack-download-ios_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/cheats-for-robux-2021_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/can-someone-hack-into-my-roblox-account_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-shirts-on-roblox_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-hack-roblox-games-no-downloads-2021_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-do-you-need-an-anti-cheat_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-mad-city-hack_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/get-more-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-robux-just-with-a-app_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-robux-on-computer-fast-2021_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-free-login_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-fan_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-spins-for-coin-masters_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/downlaod-roblox-free_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/explode-hack-roblox-script_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_off000030e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E7 22040 bytes
SHA-256: a20563591de05bbb5a740bb04621d14846aa8aa8519ebcbe309e10775c1fed7b
font_01_sfnt_off00006159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6159 19228 bytes
SHA-256: f5b9b07e83b41214ef2b1febe73624b75b8af6a55c32ca0d173576d16072673f

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