Malicious PDF — malware analysis report

Static analysis result for SHA-256 47216a8a01fb4f73…

MALICIOUS

PDF

46.4 KB Created: 2021-05-14 18:19:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 38dc92505faaf621ddeb9307ba97fa2a SHA-1: ad2493193b03c6bc9cd85c142e1e71d701f71b63 SHA-256: 47216a8a01fb4f73935b53788b8725b6d2e44da415633a059639c2743aaacce1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 0.8948

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/free-robux-apps-that-work-game-hack PDF link annotation
    • http://www.msts.ac.th/UserFiles/File/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/earn-robux-sites_GM431946152.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/hack-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/coin-master-free-spins-link-2021-app_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/roblox-fun-robux_GM431946152.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/coin-master-card-link-free_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/coin-master-gift-hack_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/minecraft-mojang-free_GM479516143.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/free-roblox-accounts-with-robux_GM431946152.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_off00004854.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4854 25616 bytes
SHA-256: c7197215646a2bdad07349aa0cf400d5e3bbf6239bd5e6a76c6c99ca8a27c49d
font_01_sfnt_off00008382.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8382 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9093 19056 bytes
SHA-256: 867cc7ed7a05e00a705c8433c5324c57a550f7e7678a2e8c50298e1974253cec

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