Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7a83caa8aa3c2c1…

MALICIOUS

PDF

43.0 KB Created: 2020-03-22 07:05:09 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 730cee16378ab9c402c24846d0a42a14 SHA-1: e832a063af566f6c27cad3f31f7df90f43f3071b SHA-256: a7a83caa8aa3c2c1d3b5a390d442c5ca8afee6c027c2c225002fa8cf0a48129d
96 Risk Score

Malware Insights

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

This PDF file contains a large number of external links, indicating it is part of a link farm or SEO spam campaign. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, identifying 25 external links. The embedded document body text, though heavily obfuscated, contains URLs that are also present in the list of extracted URLs. The primary purpose appears to be directing users to a network of websites, likely for malicious redirection or content delivery.

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://shanellrene.com/uploads/1/3/0/9/130970009/130970009.html#platero+y+yo+pdf+descarga PDF link annotation
    • http://www.registerdoglitter.com/uploads/1/3/0/8/130814666/sivakalo_xuwojosifumugat_wafukurexiv_wojalevufexa.pdfIn PDF document text
    • http://staffordpainting.net/uploads/1/3/0/6/130621603/8519138.pdfIn PDF document text
    • http://boominworld.com/uploads/1/3/0/7/130775293/bemoxeboxugasip.pdfIn PDF document text
    • http://figgylicio.us/uploads/1/3/0/2/130289613/694ab19bf9a0b18.pdfIn PDF document text
    • http://www.shaneaustinsimon.com/uploads/1/3/0/6/130620467/55ffec3ee25b2.pdfIn PDF document text
    • http://www.connecttothecitysewer.com/uploads/1/3/0/6/130604036/3285720.pdfIn PDF document text
    • http://eyeslipsandlashes.com/uploads/1/3/0/3/130379202/f5a856e.pdfIn PDF document text
    • http://laborrelationspro.com/uploads/1/3/0/8/130813782/7279108.pdfIn PDF document text
    • http://hostmaster.temposhop.co.uk/uploads/1/3/0/5/130588503/tusujipeve-supunamunonuse.pdfIn PDF document text
    • http://www.alexluscombe.com/uploads/1/3/0/7/130738553/4548631.pdfIn PDF document text
    • http://nwsconstruction.info/uploads/1/3/0/6/130639239/137cedfd7a32898.pdfIn PDF document text
    • http://hivedeep.com/uploads/1/3/0/2/130287991/fafb5a61ba0.pdfIn PDF document text
    • http://drakealexanderwalling.com/uploads/1/3/0/7/130740127/xatif.pdfIn PDF document text
    • http://bhamiltondesign.com/uploads/1/3/0/7/130775115/tipilomugemoz.pdfIn PDF document text
    • http://millark.net/uploads/1/3/0/5/130551137/mewetevenezogoj-betosud.pdfIn PDF document text
    • http://sandeebrown.com/uploads/1/3/0/5/130546237/0ddbc97682f2.pdfIn PDF document text
    • http://www.cottonwoodlanedesigns.com/uploads/1/3/0/2/130289232/8410765.pdfIn PDF document text
    • http://naturaloregonbirth.com/uploads/1/3/0/7/130776326/kejasawofolajuluwiw.pdfIn PDF document text
    • http://tjscatering44.com/uploads/1/3/0/5/130539933/zuseketanili.pdfIn PDF document text
    • http://goldenhawksband.com/uploads/1/3/0/5/130551775/sevezaveralebas.pdfIn PDF document text
    • http://sapientadvisorsgroup.net/uploads/1/3/0/7/130739210/nibubaduvogab-pexeropizunuxib-wowixusexegefe-wugiduweterot.pdfIn PDF document text
    • http://healingwatersrvpark.com/uploads/1/3/0/5/130590217/3657570.pdfIn PDF document text
    • http://newvisionyouth.org/uploads/1/3/0/2/130272509/sowuj-jipew-varofegelugaz-dizazuxuvozokeb.pdfIn PDF document text
    • http://www.jacarlsontrumpet.com/uploads/1/3/0/4/130489025/7758456.pdfIn PDF document text
    • http://sampledance.com/uploads/1/3/0/6/130640229/9346029.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
🗂 Part of campaign: goldenhawksband.com 4 samples

Related samples 4

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Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C71 9192 bytes
SHA-256: 0d887a8ffb5bee93628284fafa90d58566790099a2de27f0e415c0c8917d2b4e

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