Malicious PDF — malware analysis report

Static analysis result for SHA-256 30c08c708b5ae3ba…

MALICIOUS

PDF

35.2 KB Created: 2021-07-04 17:10:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b4bac68d5b5db5ef5de9f0c8dc7c2eef SHA-1: a3e630e5de94a18d5f3f32bac4500c3b0c95053d SHA-256: 30c08c708b5ae3ba1aaf72d075af949287672b8bb02959a317e1842048154685
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 0.9980

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 http://netcdn.tw/app/406889139/free-spins-coin-master-blogspot-game-hack PDF link annotation
    • http://digilib.uim.ac.id/repository/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-time-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/roblox-free-wiki-item_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-free-spins-link-facebook-page_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/inject-hack-download-roblox_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-get-2021-robux-free_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-get-free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-spins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/blox-fun-info_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/roblox-it-isnt-free_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-roblox-templates_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003358.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3358 22916 bytes
SHA-256: f0d603580975b536db5521be12b74e64dc3fdb12f8018ea7b3bd86f768d0e3c3
font_01_sfnt_off0000668a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x668A 18464 bytes
SHA-256: cbb231600960fb01f8bf75e8d05c0400c1d923e50dae77b7055f9c2ab978b14e

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