PDF static analysis report

Static analysis result for SHA-256 918ddc61a257c69e…

SUSPICIOUS

PDF

30.8 KB Created: 2020-05-25 01:41:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: a4cc01dacacc97f5ef9ebc97bf6f0a7f SHA-1: f4707da24a9c16bdc687c838e5fd5df4a015943d SHA-256: 918ddc61a257c69e0eade84aebfdf13d48eae135694dc5c6ac1345f523c1aa2f
44 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The ML classifier strongly flagged this PDF as malicious. The document contains embedded URLs that point to potentially malicious content, masquerading as a tutorial. The presence of a 'download button' heuristic further supports the lure mechanism. No scripts were extracted, but the overall structure and embedded URLs suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9958

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://podollanportal.devsite-1.com/uploads/1/3/1/6/131606335/131606335.html#autocad+civil+3d+basic+tutorial+pdf PDF link annotation
    • http://getfimf.com/uploads/1/3/0/5/130540208/fb72d6e4d636f.pdfIn PDF document text
    • http://mail.louisetaylorartist.com.au/uploads/1/3/0/2/130287457/1f828920463ca83.pdfIn PDF document text
    • http://videographybypetermichel.com/uploads/1/3/0/7/130776776/8617343.pdfIn PDF document text
    • http://brilliantfilmsfoundation.org/uploads/1/3/0/7/130776535/3770516.pdfIn PDF document text
    • http://createdbyrellyrel.com/uploads/1/3/1/4/131453799/vosulenumudagonova.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F83 9652 bytes
SHA-256: 206a2d1c10816f01ce6186d7787c8ef9d845b9a6664d1eaf60749d5a9fbfead7

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