Malicious PDF — malware analysis report

Static analysis result for SHA-256 e15dc76664f15931…

MALICIOUS

PDF

45.1 KB Created: 2020-10-26 10:30:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 48947740c59cb5975a9e0961dc2a535b SHA-1: ee096b43e252d323df7c14ca4b19a6ed5e6515b5 SHA-256: e15dc76664f159310ba4be485f3c7113f39dd00d35bbea99065cf7d57a3941b3
194 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://gettraff.ru/aws?keyword=certificate+of+origin+template+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4384835/normal_5f92e57f2dbd2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369771/normal_5f8b0469ec340.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377679/normal_5f8ef156ed164.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369168/normal_5f95e53a62611.pdfIn PDF document text
    • https://juzugimigiroteg.weebly.com/uploads/1/3/2/3/132302883/gexeligaz.pdfIn PDF document text
    • https://bezebaterizijir.weebly.com/uploads/1/3/1/3/131384714/9195651.pdfIn PDF document text
    • https://sibakixode.weebly.com/uploads/1/3/2/8/132814768/4157895.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380411/normal_5f944b5b0197b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393925/normal_5f8f5319c72f1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/07dcc73d-f0e3-4eca-a62e-54038bfe1adb/evaluation_cm2_famille_de_mots.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b04f7604-b30e-49b1-81da-24cdfdc211ad/87293005673.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a996a07e-8cdd-4096-adcb-903339223be9/79990799833.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd75d8f4-a82d-498c-b25e-8c3d5fea1003/63905242906.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f725c072-d483-43a6-931f-9a8ec1512a18/jodiranomegole.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb0c7843-4a27-431c-8e41-0bfd9ead3a6b/zibegilaji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/844b31b5-649c-4176-8d36-bf32268d2e73/ditafugorapofupubedukefem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc6d03c0-29c0-4757-92fb-17003919215f/maths_study_guide_grade_11_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52c162ba-fee3-436b-a622-1218ead7520b/ejercicios_areas_6_primaria.pdfIn PDF document text
    • https://s3.amazonaws.com/kakef/astronomy_and_cosmology.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/alpolic_color_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/piwoguguxazolaveto.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/language_teaching_approaches_an_overview.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000072a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72A2 5204 bytes
SHA-256: e2a17bbb405cc18f2312ac79f4d9735a53a04ab6edf4073777b428c1eb2a574d
font_01_sfnt_off00008437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8437 10104 bytes
SHA-256: 9b685e4338a1a452acf509fb0b8732a99caa16b8a86d2d0ec6a74b936755ea02

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