Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dded4a8ec5cd50e…

MALICIOUS

PDF

35.4 KB Created: 2021-06-20 05:06:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-26
MD5: 009be74da62ed7ea932fd72b0df3fdd9 SHA-1: 7c63b36de01ee591656de28a3eebefd530e93dcb SHA-256: 3dded4a8ec5cd50e9e565e7bc73d60bc607fe3480a5d51b0c55f218194a35fd1
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.co/app/431946152/robux-for-free-2021-no-vertification-game-hack In PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/minecraft-free-download-mac-full-version-2021_GM479516143.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/roblox-brick-bronze-cheat-engine_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/wwwfreerobuxroblox_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/pokemon-go-free-kanto-event_GM1094591345.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/coin-master-download-hack-ios_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/earn-robux-today_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/coin-master-homepage_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/coin-master-tiradas-gratis-2021_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/coin-master-hack-no-survey-or-verification_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_off00003150.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3150 22620 bytes
SHA-256: 8e9711251ddaae4cebe0f7ec6887110a902428d79930411cb918741df4614786
font_01_sfnt_off000063dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63DD 19476 bytes
SHA-256: f70dae2a534a8fac9c08fcf1049f8111f25666821807c961cd2d6cb8a81757f3

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