Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d7390a0aa4c5933…

MALICIOUS

PDF

44.0 KB Created: 2021-06-04 03:37:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 4acd8b8e2b4d74050fab6a9963921f15 SHA-1: f38b8038be49a6d326180247a7a012e0692594b7 SHA-256: 4d7390a0aa4c59336cece6be181332797eec2f5d6a78daea9ff0f43bdc725b93
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/479516143/minecraft-java-edition-free-game-hack PDF link annotation
    • http://lib.icbc-indonesia.org//repository/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-vip-roblox_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/fake-robux-codes_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-spins-coin-master-november-2021_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/how-to-download-wurst_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/coin-master-real-hack_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/oprewards-com-earn_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/rbx-sites_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/minecraft-free-download-no-virus_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/cute-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/coin-master-free-spins-link-without-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-spins-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-minecraft-gift-codes_GM479516143.pdfIn PDF document text
    • https://youtuIn PDF document text
    • https://playhack.in/minecraftIn 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_off000052a1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52A1 24200 bytes
SHA-256: 6dd683644bfa829768da43b84988b3a0ea4c1fda59e943ac358506eef99d4bf9
font_01_sfnt_off000089ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89EC 18164 bytes
SHA-256: e28d0ded599416f75746d42b4ddd49ac4ed584cd54835945167b34c6d366202b

Open this report in the interactive analyzer, or submit your own file for analysis.