PDF static analysis report

Static analysis result for SHA-256 c8c73da0640983a8…

SUSPICIOUS

PDF

43.3 KB Created: 2021-06-03 05:56:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 737b786376fd75adc7c0a173a6460a1f SHA-1: a3d79bc20ce19cc524c7c707f32c3299b7feeb16 SHA-256: c8c73da0640983a89a3871cf0f4acb639da0f41aeaf30a14b96151037ef53771
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple embedded URLs and a prominent external URI pointing to a download site, suggesting an attempt to trick the user into downloading a malicious application. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of download lures and external links indicates a likely attempt to deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/free-coin-master-spins-game-hack PDF link annotation
    • http://perpustakaan.pa-dompu.go.id//repository/free-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-roblox-clothes-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/free-spins-coin-master-apple_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/free-roblox-items-codes_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/coinmaster-free-spins-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/real-working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/coin-master-daily-free-spins-today_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/pubg-uc-100_GM1330123889.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_004_off0000507a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x507A 24188 bytes
SHA-256: 7e19453c909379e19d3b10f5f162cfc8e343dca2194f727e118a697b30ab67ba
font_01_sfnt_off000087d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87D7 17884 bytes
SHA-256: dbba0adc3b1b7bb8b2e5e51fec5d28ab169e2f7a165ed2a14d616932af559aea

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