PDF static analysis report

Static analysis result for SHA-256 51a1053d5f9ce9d6…

SUSPICIOUS

PDF

34.6 KB Created: 2021-07-05 21:36:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: b87af4468880c74e79e2705b9d93b693 SHA-1: 17305f61b60f469ddc491d3a3abfe40af18610d0 SHA-256: 51a1053d5f9ce9d67e8c2294a75d9a8de86ba631d53f48ce27aee5eabc93e608
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a document body that promotes a "Coin Master Free Spin" hack, strongly suggesting a lure for users to download potentially unwanted or malicious software. The ML classifier also flagged this PDF as malicious. While no scripts were directly extracted, the presence of external URIs and the nature of the content indicate a phishing or social engineering attempt, likely delivered as an attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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/coin-master-free-spin-ml-game-hack PDF link annotation
    • http://www.perpustakaan.unda.ac.id/repository/roblox-free-robux-ads_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/coin-master-free-spins-link-today-ios_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/cheat-roblox-musculation_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/coin-master-hack-online-download_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/roblox-free-draw-2-tutorial_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/noclip-hack-roblox-download_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id//repository/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/roblox-free-dominus-download_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/youtube-free-robux-obby_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id//repository/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/coolest-free-roblox-items_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id//repository/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/coin-master-hack-apk-facebook-login_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/free-robux-on-iphone_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_off0000320f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x320F 22552 bytes
SHA-256: e5be5d32c2ec6dfcf4638cca5e6e5d0bf0f91fadad82f6e95f0cfd09ece7369f
font_01_sfnt_off0000648a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x648A 18248 bytes
SHA-256: c18038b999a15e068e0fcec6b3cb299d21e05aa15a09c32d3b19c8c95a871ee0

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