PDF static analysis report

Static analysis result for SHA-256 4c9eae177f5d63c6…

SUSPICIOUS

PDF

43.0 KB Created: 2021-06-10 13:56:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 41a9b5b324cf82854b3831452269a595 SHA-1: 7f55f0854089e42b552b95adcf55567ddff79b85 SHA-256: 4c9eae177f5d63c6d0612381e1a58529b0fbacd8a799bceefc26bdb5b6b4332c
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an external URI pointing to a "free Robux generator" which is a common lure for malicious downloads. The ML classifier also flagged this PDF with high confidence. While no scripts were directly extracted, the presence of embedded URLs and the nature of the lure suggest an attempt to trick the user into downloading a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

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.tw/app/431946152/free-real-robux-generator-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-link-ios_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/114-hacks_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-make-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-robux-no-human-verification-20212021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-minecraft-addons_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hack-the-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-free-clothes-catalog_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-hack-ios_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-and-coins-for-today_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-apk-35-18_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-version-2021-download_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-online-generator_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/demon-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/can-you-actually-get-free-robux_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_004_off00004e2d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E2D 24028 bytes
SHA-256: b9dd62864f33fd1ceb164859715e3cbfa05cf2e3bfd90b0dd4bece57d5685580
font_01_sfnt_off00008502.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8502 18420 bytes
SHA-256: e9bb116a53ea17161054bef6ad9149b9624fbf7104cce36047ac943a7a981ec2

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