Malicious PDF — malware analysis report

Static analysis result for SHA-256 400652ff2f75666a…

MALICIOUS

PDF

56.4 KB Created: 2020-03-12 03:27:29 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 952acbf186b5b9cf9eb8679f8ed0dc4f SHA-1: 2d8231079e54b532aaa24f623f6da9f74fb710ad SHA-256: 400652ff2f75666af280f7bde2674f0af95b44b301f65f3f323ee54c7215ffc5
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or a distribution mechanism for further malicious content. The embedded URL also points to an HTML file on a suspicious domain. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery or execution methods.

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://radissonbluhotelkigali.devsite-1.com/uploads/1/3/0/2/130289690/130289690.html#the+keto+reset+diet+book+depository PDF link annotation
    • http://puertoplataportadventures.com/uploads/1/3/0/5/130551957/5c7ba69709bec.pdfIn PDF document text
    • http://yologirlstucson.com/uploads/1/3/0/7/130739192/4684021.pdfIn PDF document text
    • http://blueskysweetscakery.com/uploads/1/3/0/6/130621331/fodado.pdfIn PDF document text
    • http://longphysicalscience.com/uploads/1/3/0/6/130604922/kamuvetigakukas_toserugudegisok_xugepexunev.pdfIn PDF document text
    • http://hostmaster.pre-war-housing.org.uk/uploads/1/3/0/2/130271017/zinusiwi.pdfIn PDF document text
    • http://webdisk.voluntarysectorgateway.org/uploads/1/3/0/2/130289305/c57cf043859496.pdfIn PDF document text
    • http://millie4good.org/uploads/1/3/0/4/130483537/03a08b670.pdfIn PDF document text
    • http://mattowensiu.com/uploads/1/3/0/5/130550666/saraxez.pdfIn PDF document text
    • http://bodydelux.com/uploads/1/3/0/6/130639740/womara.pdfIn PDF document text
    • http://highjohnroot.com/uploads/1/3/0/5/130545011/2c58f230d9b.pdfIn PDF document text
    • http://mx.draegertools.com/uploads/1/3/0/5/130551795/3598591.pdfIn PDF document text
    • http://forestgraphic.com/uploads/1/3/0/6/130639573/tusumemipimifo.pdfIn PDF document text
    • http://colnevalleymarquees.com/uploads/1/3/0/9/130969967/judekupatukid.pdfIn PDF document text
    • http://nancyzhang0313.com/uploads/1/3/0/4/130476171/mulolotok-zukoges.pdfIn PDF document text
    • http://www.ashleerenae.com/uploads/1/3/0/9/130969279/5721315.pdfIn PDF document text
    • http://ip125-colo.mnemonix.com/uploads/1/3/0/3/130313090/mewijobi-jalos.pdfIn PDF document text
    • http://threetwodesign.com/uploads/1/3/0/5/130589279/910bc4577.pdfIn PDF document text
    • http://www.kingstoncollegeinternational.com/uploads/1/3/0/3/130312983/fujubetovikatexato.pdfIn PDF document text
    • http://cobramsc.com/uploads/1/3/0/8/130874021/961cf638.pdfIn PDF document text
    • http://nicholassearle.com/uploads/1/3/0/5/130588613/dikibexux.pdfIn PDF document text
    • http://www.philipfmessina.com/uploads/1/3/0/2/130272977/7344989.pdfIn PDF document text
    • http://nsco.tech/uploads/1/3/0/7/130738913/4fbcc60c2f0677.pdfIn PDF document text
    • http://www.kantakakes.net/uploads/1/3/0/9/130969700/4400478a6dee2ce.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_off0000b121.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB121 8576 bytes
SHA-256: 4ac40ac993bef535caa8b5caf430ee62d476cb00b14eb1bf99647d5823212c31

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