Malicious PDF — malware analysis report

Static analysis result for SHA-256 376bf5292a63d021…

MALICIOUS

PDF

46.8 KB Created: 2020-11-05 19:55:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: 49b1cbd70e662ae1d1997c07fb3e8bcb SHA-1: c07ffa569e4613beeeea3f83bee999d9fd5fa742 SHA-256: 376bf5292a63d021d7ed9afca66f986d9d639d8e8677cb6488d3c05162cca723
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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 https://traffset.ru/aws?keyword=horizon+fitness+t35+treadmill+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380674/normal_5f9287ef50702.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388614/normal_5f96f28f609ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413239/normal_5f9f9b6ca4b63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369158/normal_5f932a97240ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412403/normal_5f9354f79a794.pdfIn PDF document text
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/nulini.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416514/normal_5fa063353952c.pdfIn PDF document text
    • https://rofuvawe.weebly.com/uploads/1/3/4/3/134363923/9001733.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/acec92cc-0adc-4530-8c4f-ae8e4ca4967f/romizilatosevubivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8504/4152/files/dekejinefalite.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc2efc41-7fa1-4c1d-8d2b-a984984a9457/superfudge_free.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/2009_buell_1125cr_specs.pdfIn PDF document text
    • https://s3.amazonaws.com/fajonubinomeder/class_12_maths_syllabus_2018-_19.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/7804/4833/files/xitarawuzerabakagi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB3 5232 bytes
SHA-256: 63d2edc7bfdf738c27400de60758c6f5b54c3bd250281e555889bab96ba3d9f4
font_01_sfnt_off00007d5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D5D 10040 bytes
SHA-256: 761aa2d51a13290a05286f1eeaf7499390bb1fa416df74a7cdff7648221c32d2
font_02_sfnt_off00009fcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FCD 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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