Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba06042794bf2dc5…

MALICIOUS

PDF

72.4 KB Created: 2021-02-27 04:59:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0fcb3e6b8a9bd0262772157fadba9250 SHA-1: 79bbb5f462de3c904da17213998d8cc3c1495947 SHA-256: ba06042794bf2dc5647db1fbf2b8c36c1b93e243d2d7292cc9470b5011ab6097
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://baarspo.ru/award?keyword=how+to+activate+directv+remote+to+receiver PDF link annotation
    • http://labifovejes.mypressonline.com/xitabi.pdfIn PDF document text
    • http://kubodir.22web.org/47341125651.pdfIn PDF document text
    • http://labifovejes.mypressonline.com/is_sears_repair_still_open.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401703/normal_5fd91600c4cba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446272/normal_5fe9c7e9f179c.pdfIn PDF document text
    • https://cdn.sqhk.co/jeporikate/ghirqoc/modern_tv_cabinet_design_best_furniture_units.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453337/normal_5fc9f514c185d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420600/normal_5fe9707068fb5.pdfIn PDF document text
    • https://cdn.sqhk.co/gogojiranat/gieX8Hi/fancy_pants_adventures_unblocked.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454438/normal_601405bfd0952.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417313/normal_601b3ab43cd5d.pdfIn PDF document text
    • https://cdn.sqhk.co/nejisakatok/dzJcij0/xodol.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408703/normal_5ff1bde4c59f8.pdfIn PDF document text
    • https://cdn.sqhk.co/befozaxulot/4UpjqPA/wuvosovil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380090/normal_602b861432c5b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://barajolu.rf.gd/pikekusirili.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_off0000dfe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFE4 4988 bytes
SHA-256: 07a141617a6e278b944ff541b26a66cffd0eac4a4e7d6fc2bc3afee372d73ec1
font_01_sfnt_off0000f0d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0D7 10440 bytes
SHA-256: 87db9d489d5f9695700a3cf099969fb910cf5772f54066f1726fabee2abd5d98