Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ead95b9ce9d1cb8…

MALICIOUS

PDF

43.2 KB Created: 2021-06-03 10:36:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 22b71ac5ddc7c52a23dd19e733a3f0c1 SHA-1: b7ac9c95e52cd1cb9846c70b085d0290167e9a3f SHA-256: 1ead95b9ce9d1cb8729271a333df72c3e1623499b5cb1cb4aa200f783816530b
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 0.9865

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/coin-master-free-spins-daily-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info/repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-spins-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/download-robux-hack-no-downlowdes_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-roblox-hair-to-wear_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-game-free-download_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-free-spins-generator-no-verification_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/pokemon-go-free-qr-codes-2021_GM1094591345.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/tiktok-free-books-website_GM835599320.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/static-moonactive-net-link_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/moonactive-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-shirt-template-free_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/rbx-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-apk-free-download_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_004_off00004f7e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F7E 23964 bytes
SHA-256: b9a0f442225b121df34d477d2b860306da22e9bb2e82151abbbddb104f08627e
font_01_sfnt_off00008615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8615 18308 bytes
SHA-256: 220bb6194b1ab8a2bb399ca4a862914ac8d15b354bb0df2c737bc67699221dc9