Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3cfb3fe96d6864…

MALICIOUS

PDF

33.6 KB Created: 2021-07-03 15:08:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-14
MD5: c6802fb2ae77882ebbb45075aa1a77b0 SHA-1: fe2b23ecfa86e50879fcb4b12f7910e6223fe2dc SHA-256: 0d3cfb3fe96d686438aae599370c495f9423604cb509d75701dd3fcd2d3aa5ba
160 Risk Score

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.tw/app/431946152/how-to-get-free-robux-for-real-game-hack In PDF document text
    • http://smpn1sda.sch.id/slims/repository/hawt-sauce-roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/go-to-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-do-you-hack-a-roblox-server_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-connection-lost-hack_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-get-20210-robux-no-hack_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-free-spin-trick_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-robux-in-roblox-pc_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-robux-gift-card-giveaway_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-do-you-get-into-roblox-for-free_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
stream_002_off00002e1f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E1F 21764 bytes
SHA-256: 763ec67d028129628199cc1036a4c2d11b766b4d6eaf5bb24fec463a6cfc2d9d
font_01_sfnt_off00005df3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF3 19056 bytes
SHA-256: f4ef8dd6bf40d1c11b2a1b1182ebe3cc130548f6133d652513fc66e114cd9f45