Malicious PDF — malware analysis report

Static analysis result for SHA-256 c66303fea8249ff5…

MALICIOUS

PDF

71.8 KB Created: 2021-03-14 08:03:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 07e833012428e6ce5317251965943e07 SHA-1: d4f0782b4d33d108cb91b985d835e8732890418f SHA-256: c66303fea8249ff56e99e51401a9ece30736fce6211fab0319ccea4849d65c15
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://botokaw.ru/aws?utm_term=how+to+make+spectrum+remote+control+tv PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4469850/normal_60387ce599c6c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490752/normal_602e2ff4a9be5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380674/normal_60207b3d18a13.pdfIn PDF document text
    • https://cdn.sqhk.co/pefisemise/hhTQ4eq/78672490679.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484103/normal_5fc82ac4b6fdf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470696/normal_5fdb9425367f4.pdfIn PDF document text
    • https://cdn.sqhk.co/datawafag/ihiOgj8/resident_evil_7_dlc_not_a_hero.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488822/normal_602e44fe0bff3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369520/normal_6012c08b466de.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/a15f971b-7961-4f20-b7a2-da06383eb3bc/how_to_set_a_watch_winder_for_rolex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0d5c4cd-9795-49c7-9be0-addab66e8a80/63885782954.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/902e108b-accf-407d-9fb9-14144aeb4d24/dish_network_internet_speeds_and_prices.pdfIn PDF document text
    • http://kejajuzajibig.rf.gd/67057051676.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57cdd40c-39a7-43a4-ae3b-5a2e429e3d82/masters_of_the_universe_castle_grayskull_business_card_holder.pdfIn PDF document text
    • http://tuzikarowom.epizy.com/guidelines_for_type_2_diabetes_diet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be6bc5d4-4402-4154-994f-382d25fe8c8a/16869519030.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40cd9f31-707a-400a-9f0c-dc2b8724ae0a/beforawasowitesatiki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbb7e087-6b8c-412c-bce0-2fcca1c08df4/maytag_neptune_washer_instructions.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_off0000dc2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC2F 5256 bytes
SHA-256: 0217e4a34bcc5536ee2b2e99c2bc0fd2eace49fb2ba4fab2cd3f546425b4b421
font_01_sfnt_off0000ee0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE0C 10568 bytes
SHA-256: 32268b43dc105575eaa09c0082c4513ca9930d9403a016092d85dfd7a305e6fd

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