Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fb690831c93abe9…

MALICIOUS

PDF

44.5 KB Created: 2021-05-19 01:15:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4c8a8d710c3b49e4046097246f5d9d2d SHA-1: daf0af5f8f9d3ea6e080433d4ad4a4901406772c SHA-256: 5fb690831c93abe9194d1ac614dcbbf54a4ee576c2c7b52064c156551a73e82d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks. The primary lure appears to be a 'Coin Master Spin Hack', directing users to a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering attack aimed at tricking users into visiting malicious sites.

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 https://netcdn.xyz/app/406889139/coin-master-spin-hack-no-verification-game-hack In PDF document text
    • http://www.dciprotection.ca/images/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/roblox-earn_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/www-cheatsk-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-custom-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/roblox-data-breach_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/easy-robux-today_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/how-to-earn-free-stars-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-free-spins-2021-apk_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/minecraft-hacks-xbox_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/robux-offer-wall_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/toolbox-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-free-spins-link-today-facebook_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_003_off00004922.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4922 31108 bytes
SHA-256: f6d67b5d5a53b010754310547517c5cb34f270e6aebf960c66d20980230fad1e
font_01_sfnt_off00008c52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C52 18028 bytes
SHA-256: 2de0e9c41ce50443ccbc7b49ff620d9d14c87888ef748e70805f38b18b312090

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