Malicious PDF — malware analysis report

Static analysis result for SHA-256 c184aed348368494…

MALICIOUS

PDF

33.6 KB Created: 2021-06-29 02:26:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e6f979275186d34bccf73857a1684d83 SHA-1: 651d0375dac3af3c400e7534dab4c09e6cf8769c SHA-256: c184aed3483684946ae1a68ff50bcf8f74534f97def8cc73b8af3aeb2dda3248
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lure users into clicking on what appears to be a game hack or exploit tool. These links redirect to malicious infrastructure, specifically the URL http://netcdn.co/app/431946152/free-exploit-tool-roblox-game-hack. The presence of multiple such links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a phishing or redirection attack.

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-exploit-tool-roblox-game-hack In PDF document text
    • http://digilib.stie-yppi.ac.id/repository/free-foxy-food-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/tiktok-free-package_GM835599320.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/good-reasons-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/how-to-get-free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/play-roblox-free-online_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/roblox-comcom_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/roblox-app-cheats_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/hack-roblox-block-piece_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/como-hackear-robux-verdadero-no-fail_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/hack-roblox-vip-servers_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/free-coin-master-spin-app_GM406889139.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_off00002dfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DFE 21820 bytes
SHA-256: 9c5fcf1677f366d385ce72ce49a542d19bda7bfbc1e3fb5255faec3cc9b4fb79
font_01_sfnt_off00005e28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E28 19048 bytes
SHA-256: a2b26ee5053846a0c1978a3355e82b3649420e60ddaa8e8f3b97453e18ac8ac6

Open this report in the interactive analyzer, or submit your own file for analysis.