PDF static analysis report

Static analysis result for SHA-256 259b1e7823ef7a03…

SUSPICIOUS

PDF

39.6 KB Created: 2021-04-29 12:34:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 3f52fcb1f6bd70db7dbfd1f42b9fb358 SHA-1: 39ef43e3dec2c58882a108fa5599171fde0df8f1 SHA-256: 259b1e7823ef7a03c81f1414d00a5e453d262e29419b1f79e22ee9b152b87d9f
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, one of which is directly referenced in the document body and heuristics as a potential download source. The ML classifier strongly indicates maliciousness, and the document's content and embedded URLs suggest a lure for downloading potentially unwanted or malicious software related to game cheats. No scripts were extracted, but the presence of external links and the ML classification point to a high likelihood of a malicious download attempt.

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/bux-blast-earn-free-robux-game-hack PDF link annotation
    • https://www.malesse.com/ckfinder/userfiles/files/silent-assassin-cheats-roblox.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/free-roblox-accounts-with-robux-list.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/roblox-dayz-cheat-code.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/roblox-edit-money-value-cheat-2021.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/roblox-cheats-client.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/roblox-catalog-hacks-thumbnail.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/free-robux-xbox-one-2021.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/roblox-free-robux-hack-2021.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/how-to-get-free-robux-ipad-only-2021.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/no-virus-hack-roblox.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_003_off00003dc2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3DC2 25976 bytes
SHA-256: c9dee6a9dc0aabaaca757b9871fcf6a3bceef7906cc82cb436d25f167f08638f
font_01_sfnt_off00007861.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7861 18420 bytes
SHA-256: e6e78f6fb717fcdd7832b4890abbfec1cfeeee06088d498c4d69ec2e13645cef

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