Malicious PDF — malware analysis report

Static analysis result for SHA-256 79375f1e38fd615f…

MALICIOUS

PDF

45.5 KB Created: 2021-06-10 22:09:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 6c2e23094790e78098b0c71cd925da28 SHA-1: 3c8437530b6de8bdfc94ef34262c1c54c9081194 SHA-256: 79375f1e38fd615f8fa52f2106f59fdf6a290f05f7018409b796216f21d1253e
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/how-to-get-free-robux-on-phone-2021-game-hack In PDF document text
    • https://library.uigm.ac.id/repository/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/infect-roblox-games-hack_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/hacks-para-los-juegos-de-roblox-gratis_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/chisel-and-bits-mod-pe_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-free-bonus_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-time-hack_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/get-free-spins-on-coin-master-links_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/actual-free-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/admin-command-hack-guide-roblox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-free-coins-and-spins-link_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
stream_004_off000051bc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51BC 25692 bytes
SHA-256: 7b52ec076606ebb3ee02c7ba4611103c0a9ea4ce940866d45e1cc6afb252d12c
font_01_sfnt_off00008d16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D16 19004 bytes
SHA-256: 9143e9c063c8a9c8d6296be3e5503e9365326e279c6efd0fa2ab6b1a3dcd35cd

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