Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5b683b8fec4b2b7…

MALICIOUS

PDF

70.1 KB Created: 2020-10-02 14:41:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 9370f8c9cd8bd1fb4ecf5ce9fee8137a SHA-1: d7317389ec6a4905b729a522d2386d9a622db900 SHA-256: f5b683b8fec4b2b7b7f6277f478f392ea8e569b34b48571e847a23a473434463
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 https://cctraff.ru/pify?keyword=ruger+mini+30+tactical+rifle In PDF document text
    • http://files.michelletockyork.com/uploads/1/3/1/3/131383889/808b8735226ce7b.pdfIn PDF document text
    • http://files.asktheculturequeens.com/uploads/1/3/2/7/132712551/daraluvofadil-vetezobub-navemolu-figizewanodasoz.pdfIn PDF document text
    • http://files.lansdownewritersworkshop.com/uploads/1/3/1/1/131163914/nifopujiwiguluzozame.pdfIn PDF document text
    • http://files.whyrunnow.com/uploads/1/3/2/3/132302963/temodadera-xusigisivomi-zipoguxadegup.pdfIn PDF document text
    • https://site-1036918.mozfiles.com/files/1036918/55673593788.pdfIn PDF document text
    • https://site-1039513.mozfiles.com/files/1039513/vevutumutizaguvigagovupip.pdfIn PDF document text
    • https://site-1038612.mozfiles.com/files/1038612/46558284620.pdfIn PDF document text
    • https://site-1036923.mozfiles.com/files/1036923/2165922562.pdfIn PDF document text
    • https://site-1037113.mozfiles.com/files/1037113/bosabodavuwojiluri.pdfIn PDF document text
    • http://dubimedu.currentvictorian.com/uploads/1/3/1/6/131637921/f180b7d3d051.pdfIn PDF document text
    • http://files.exclusiveboutique.co.uk/uploads/1/3/1/0/131070627/rofapavuked.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/sopezopepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1908/3677/files/pedamivadipokifixijofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8578/1397/files/notice_to_vacate.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
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c9f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9F1 5336 bytes
SHA-256: 6fc43980911e6e3015b8cdcaf3d4eb1caca78079d1f1439312ba146bce3aaab5
font_01_sfnt_off0000dc14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC14 15020 bytes
SHA-256: a183e62e9b6a750d84f13819377c9ddea0e37b4b536a34cbafcf8b5206fba769

Open this report in the interactive analyzer, or submit your own file for analysis.