Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ed49e1d4ca15368…

MALICIOUS

PDF

34.9 KB Created: 2020-04-22 04:26:40 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 7aae888c07123e1c70953d3cd9843f7c SHA-1: 1fecdd29974dd0c90a824858fef9c5f649ec81d8 SHA-256: 9ed49e1d4ca15368bb77f56e595f6369b628449e1a73732cfd3f82354d6ceba6
96 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are numerically or generically named, suggesting a link farm for SEO manipulation. The document body, though heavily obfuscated, contains references to 'Archicad 21 manual pdf' and 'wkhtmltopdf', likely as lures. The primary heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, with 'memphiscounsel.net' being a dominant host. These links likely lead to malicious content or further phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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://cruxsante.com/uploads/1/3/0/6/130621431/130621431.html#archicad+21+manual+pdf PDF link annotation
    • http://memphiscounsel.net/uploads/1/3/0/5/130588287/4140717.pdfIn PDF document text
    • http://purplehouseada.com/uploads/1/3/1/4/131407067/6e1298885582d32.pdfIn PDF document text
    • http://flippingtheclassroom123.com/uploads/1/3/0/7/130775195/b8c4afc04cffc9.pdfIn PDF document text
    • http://letsgetinvolved.org/uploads/1/3/0/8/130874493/9951651.pdfIn PDF document text
    • http://ibbymemes.com/uploads/1/3/1/4/131437722/5bb266296.pdfIn PDF document text
    • http://maiwhy.org/uploads/1/3/0/8/130813325/vobazisotujul.pdfIn PDF document text
    • http://makohomeconstructuion.com/uploads/1/3/0/6/130621979/sozugutafajixiwo.pdfIn PDF document text
    • http://www.com.0In PDF document text
    • http://cadgarage.infoIn PDF document text
    • http://www.com/guides/.com/us/book/ifc-guide/id897006119In 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
🗂 Part of campaign: dennistheflash.com 3 samples

Related samples 1

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_off00006097.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6097 8320 bytes
SHA-256: 7678039fff162b73d461fc93e6bec02288a928f1a23567b7adac4cbc88479ee9

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