Malicious PDF — malware analysis report

Static analysis result for SHA-256 d39882af670af8c6…

MALICIOUS

PDF

44.5 KB Created: 2021-05-12 06:33:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: f469839b483e9b93a7e96d3bab9ea1a4 SHA-1: 9abf2fc25424187b514e4249a08a50a5cf4446bb SHA-256: d39882af670af8c66691e551c8edd0b947c642de240b867d57453bac222fd64c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks for popular titles like Coin Master and Roblox, directing users to external URLs. The primary URL, https://netcdn.xyz/app/406889139/coin-master-free-cards-hack-game-hack, is flagged as a redirector for game hacks. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to lead the user to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-free-cards-hack-game-hack PDF link annotation
    • https://www.hotel-forsthaus.com/images/roblox-sign-in-free_GM431946152.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/spin-link_GM406889139.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/coin-master-3533-android-hack_GM406889139.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/how-can-i-get-free-coinsn-coin-master_GM406889139.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/how-to-download-minecraft-for-free-on-windows-10_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ba9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BA9 24496 bytes
SHA-256: c696405eabeee1db0fc6b1c80f81a291b04c9f9ee2d0e215492553982469a0ea
font_01_sfnt_off000081ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81FF 2868 bytes
SHA-256: d2d857e2ddc1082c7667b23f2135a5c0ba26a2ff8b42c86c89c8e0b09aece855
font_02_sfnt_off00008be9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BE9 18056 bytes
SHA-256: ad4f2d10031887feff52537d65cf9a04719575ebe7be64232d8e0b4f73fdfdc1

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