Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5f9c6d0007b2245…

MALICIOUS

PDF

35.8 KB Created: 2021-06-26 17:34:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 33bc5102ae8c576ee3fca576850379c7 SHA-1: bbd19602c5dcab867482e97b8e458ac461eeeac7 SHA-256: a5f9c6d0007b224558e701c15fc462c2510d4ca91d65826e67ba645eb8aaec91
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains multiple links to external websites, including one identified as a malicious redirector. The document body and heuristics suggest a lure for downloading game hacks or cheats, likely leading to malware. The primary malicious URL identified is http://netcdn.co/app/431946152/dl-roblox-hack-scripts-download-game-hack.

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/dl-roblox-hack-scripts-download-game-hack In PDF document text
    • http://grugliascogiovani.org/images/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdfIn PDF document text
    • http://grugliascogiovani.org/images/free-spin-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://grugliascogiovani.org/images/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://grugliascogiovani.org/images/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://grugliascogiovani.org/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://grugliascogiovani.org/images/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://grugliascogiovani.org/images/robux-download_GM431946152.pdfIn PDF document text
    • http://grugliascogiovani.org/images/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://grugliascogiovani.org/images/free-roblox-torso_GM431946152.pdfIn PDF document text
    • http://grugliascogiovani.org/images/roblox-hack-teleport-and-wool-and-speed_GM431946152.pdfIn PDF document text
    • http://grugliascogiovani.org/images/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://grugliascogiovani.org/images/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://grugliascogiovani.org/images/how-do-you-hack-your-friend-on-roblox_GM431946152.pdfIn PDF document text
    • http://grugliascogiovani.org/images/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
    • http://grugliascogiovani.org/images/archery-master-3d-unlimited-coins-hack_GM406889139.pdfIn PDF document text
    • http://grugliascogiovani.org/images/lots-of-robux_GM431946152.pdfIn PDF document text
    • http://grugliascogiovani.org/images/how-to-get-free-stuff-on-roblox-ios-2021_GM431946152.pdfIn PDF document text
    • http://grugliascogiovani.org/images/100-robux_GM431946152.pdfIn PDF document text
    • http://grugliascogiovani.org/images/free-tiktok-views-trial_GM835599320.pdfIn PDF document text
    • http://grugliascogiovani.org/images/roblox-cheat-engine-61-download_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_off0000325d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x325D 22796 bytes
SHA-256: ed2ff112469af13e3f7653eb1687930f2b65e897d4f01939f67756be63f4474b
font_01_sfnt_off00006555.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6555 19564 bytes
SHA-256: ac0fee88e0ea76bc2c169de91a5a36e52a8939f5abb5fe98768311e44637299e