Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3de77759503410b…

MALICIOUS

PDF

44.0 KB Created: 2020-03-09 03:01:37 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 441a2617c20bd5ef6ebac275385d2a44 SHA-1: 5152d1261e1fcd8995146fea6d1e71aed3d36063 SHA-256: c3de77759503410b113397fbfc2da182380445484a08a2a8fdee4dc4142d47be
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO manipulation tactic. The primary URL found is http://lisa-and-dustin.rominastiebenphotography.com/uploads/1/3/0/8/130814584/130814584.html#absceso+perianal+esquema+antibiotico, which is part of this network. The document body is heavily corrupted, but the presence of the URL and the heuristic firings strongly indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://lisa-and-dustin.rominastiebenphotography.com/uploads/1/3/0/8/130814584/130814584.html#absceso+perianal+esquema+antibiotico PDF link annotation
    • http://atlbloggers.com/uploads/1/3/0/7/130776245/5375777.pdfIn PDF document text
    • http://xodessertsandbakery.com/uploads/1/3/0/8/130873856/kepabugalegi-sukutulexerot-tujidabovevexud.pdfIn PDF document text
    • http://www.noreencoupenpleinair.com/uploads/1/3/0/6/130639557/7638788.pdfIn PDF document text
    • http://mylifefirst.com/uploads/1/3/0/5/130543019/gedomujavetuwelep.pdfIn PDF document text
    • http://www.ayriebckyll.com/uploads/1/3/0/5/130589429/bakafeda-dozove.pdfIn PDF document text
    • http://whalermarchingband.com/uploads/1/3/0/6/130640159/4fa00d9f822.pdfIn PDF document text
    • http://mespinozamen.com/uploads/1/3/0/7/130740617/30b33.pdfIn PDF document text
    • http://nevrapoint.com/uploads/1/3/0/6/130621775/5659574.pdfIn PDF document text
    • http://csjunioracademy.com/uploads/1/3/0/7/130738939/mazeges_miniwijiz.pdfIn PDF document text
    • http://newyorkreadingsuccess.com/uploads/1/3/0/5/130588944/eec834eea5a.pdfIn PDF document text
    • http://mariposahandwovens.com/uploads/1/3/0/6/130639236/zasagubevan.pdfIn PDF document text
    • http://snaptravelchew.com/uploads/1/3/0/5/130551339/2589340.pdfIn PDF document text
    • http://www.xtra-clients-deals.com/uploads/1/3/0/8/130874360/9193502.pdfIn PDF document text
    • http://healingsigns.org/uploads/1/3/0/3/130313262/57b08203d77ed6.pdfIn PDF document text
    • http://greyt-art.com/uploads/1/3/0/4/130488861/ed47a38b.pdfIn PDF document text
    • http://neweraeyecare.org/uploads/1/3/0/5/130550803/mininadom.pdfIn PDF document text
    • http://fabric313.com/uploads/1/3/0/4/130476060/2c2519a.pdfIn PDF document text
    • http://www.charlotteindustrialservicesgroup.cassidyturleysites.com/uploads/1/3/0/6/130603702/0b5e4e069.pdfIn 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

Related samples 2

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_off00008081.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8081 8888 bytes
SHA-256: 9a78c0dae3771bf38bd1599d23602425aa80f20b1c87027bd869cc4729d4112d

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