Malicious PDF — malware analysis report

Static analysis result for SHA-256 e19150aa9bea260e…

MALICIOUS

PDF

50.1 KB Created: 2021-06-04 01:00:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 344d7358e38e6c0744d6f91300049a79 SHA-1: 17d1d3654e7e88cf5b85563c90b4fb1998c54bcc SHA-256: e19150aa9bea260e2dfaab1154ba9970303370ea1df3994e1066c1d2910b1e7b
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 0.9734

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.online/app/406889139/como-hackear-juego-coin-master-game-hack PDF link annotation
    • http://library.ulb.ac.id/repository/how-to-get-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-fans-on-tiktok_GM835599320.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/free-spin-and-daily-news-coin-master_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-hack-2021-link_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-game-2021-free-spin-link_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/facebook-coin-master_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/roblox-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/hack-coin-master-android_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/descargar-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-hack-mod-apk-download_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004ecc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ECC 24940 bytes
SHA-256: 08d499ffefc94eb7d013afddf00b3c40fb8daeab94b28b5e6420b423e722f898
font_01_sfnt_off00008878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8878 4028 bytes
SHA-256: 6a4891da4f8b73c02e22ecd6fa566d6bb4f5f2d5575b30a343f3d3c5e0919267
font_02_sfnt_off0000961b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x961B 2788 bytes
SHA-256: 6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
font_03_sfnt_off0000a00b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA00B 18572 bytes
SHA-256: 08bd6afb78e7ba164a11b6bcff14b084761992f6b80076210b252904e123869d

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