PDF static analysis report

Static analysis result for SHA-256 87f85d9746378b5e…

SUSPICIOUS

PDF

41.4 KB Created: 2021-04-26 19:57:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b31167f8a374aa2f73eb4b8b0e7e41ae SHA-1: 53e66cb05fda610ffae51274de1b0fd7191f9417 SHA-256: 87f85d9746378b5ea2a73e8fb0f237c78db1dd958dd86694b2760138b904001d
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, one of which is explicitly flagged as an external URI. The ML classifier also strongly indicated maliciousness. The presence of a download button lure and the overall structure suggest an attempt to trick the user into downloading potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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.xyz/app/431946152/download-roblox-free-on-chromebook-game-hack PDF link annotation
    • https://lib-stie.yai.ac.id/repository/roblox-everything-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-roblox-girl-clothes.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-war-tycoon-cheats.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-online-games-for-pc-similar-to-roblox-no-download.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-impact-hack-client-not-working.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/pastebin-roblox-free-robux-2021.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-build-a-boat-for-treasure-hack-download.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-shirts-for-boys-free-shipping.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-generator-codeorg-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/kazok-roblox-account-hack.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_003_off000043ac.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x43AC 25536 bytes
SHA-256: 57d93f2d1121d237fbac7e60f8fd2edd5f6a2269b55b4342a945d135a1a58038
font_01_sfnt_off00007d58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D58 19280 bytes
SHA-256: 875488d77a9cfd92acfdd21e54e842605368363fc7e6da81a130d6beb9117974

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