Malicious PDF — malware analysis report

Static analysis result for SHA-256 e14dd197607eaf81…

MALICIOUS

PDF

47.2 KB Created: 2021-06-03 08:04:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 125fcca07d85cb78c4b3b7765115b643 SHA-1: 6050511033d5dc721e131abd0fc10b621b2d164d SHA-256: e14dd197607eaf81528b6b6aaa7a087ffd5c0671666f8eb81268034b80d90a5e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple critical heuristic firings indicating it links to malicious redirector infrastructure, specifically promoting a 'free generator / game hack'. The document body and embedded URLs reinforce this lure, directing users to a URL associated with free Robux and game hacks. While no scripts were extracted, the PDF's structure and embedded links strongly suggest an attempt to trick users into visiting a malicious site, likely to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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 https://netcdn.online/app/431946152/how-to-get-free-robux-easy-game-hack In PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-free-spins-link-2021-no-verification-deutsch_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/worst-roblox-avatars_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-unlimited-spins-apk-free-download_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-70-spin-link_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-free-cards-and-spin-link_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/free-flip-master-coins_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/rbx-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/how-to-get-free-coins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005012.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5012 26156 bytes
SHA-256: e8039d4af392011cbae106be041665b6bfb49a3a5355d112f5f081c384fb77d0
font_01_sfnt_off00008a94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A94 2888 bytes
SHA-256: 3336a466fcb64b720a3988844ebe6e938788f23c31f568cd9aeb6f9b1346142d
font_02_sfnt_off00009466.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9466 18688 bytes
SHA-256: afa93f6b5b78c11c56913a3e0021d293f85f1b4278f41e2b8713ad9a89f051de

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