Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7409402c59c63f3…

MALICIOUS

PDF

46.7 KB Created: 2021-05-14 06:56:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: f7fd1456ac0a62ba2010049c444863ff SHA-1: 0404cc77eefb09eb6da6dc3197ef47a42c3ba245 SHA-256: b7409402c59c63f3b6710f39dcaabe3f0c37c6d4df3f4c71d1e20ab892ac027f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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/431946152/roblox-redeem-codes-free-game-hack PDF link annotation
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/free-roblox-pin-codes_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/minecraft-free-download-mac-full-version-2021_GM479516143.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-34-4-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/free-minecraft-mods-for-pc_GM479516143.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-hack-tool-pc_GM406889139.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/real-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-hack-2021-without-verification_GM406889139.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-connection-lost_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_off00004ac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AC3 32180 bytes
SHA-256: 10707f274fcea02f71b2b2fdbb7947006c3963d90fd891d34d3634f2c9aa5852
font_01_sfnt_off00009416.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9416 18380 bytes
SHA-256: 20d0b662fcfcdd1cfb8c839e912a5e46386cbbaa083776d069a590b1aaf94574

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