Malicious PDF — malware analysis report

Static analysis result for SHA-256 564904d5bc44dd1f…

MALICIOUS

PDF

77.7 KB Created: 2021-02-13 04:19:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 049366462e444b7c8d631ca45479f536 SHA-1: d4665a58cc958626b3cc8cb44a70febdb4a8fea3 SHA-256: 564904d5bc44dd1fd639dee40b43647615b3a26245c819e17c08086525dbc823
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://bologen.ru/123?utm_term=coleman+canoe+parts PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4412900/normal_600d0186b5379.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369313/normal_5ff1880bdad69.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415934/normal_5ff29ea3b545f.pdfIn PDF document text
    • https://cdn.sqhk.co/giboxikewev/gihicie/zifanawagajoxidiwasage.pdfIn PDF document text
    • https://cdn.sqhk.co/mofisozulud/ggjdvfA/big_bang_cast_priya.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420600/normal_5ff444027551a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370288/normal_5fe3934c4e634.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426695/normal_5fd0dbeee15db.pdfIn PDF document text
    • https://cdn.sqhk.co/patemugimej/Fp8jage/khan_academy_math_sat_practice_questions.pdfIn PDF document text
    • https://cdn.sqhk.co/savaketiju/DsggGhe/xijusozixe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jebokizez/juzemufozafotojixurilefib.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/shutter_movie_in_tamil_dubbed.pdfIn PDF document text
    • https://s3.amazonaws.com/fusopoxipo/29176870982.pdfIn PDF document text
    • https://s3.amazonaws.com/remeranexe/hallelujah_praise_ye_the_lord_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/baasha_digital_movie_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/mah_bed_cet_result_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/entertainment_company_business_plan_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jufowokedunod/xunujaretaromadofi.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_off0000ed80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED80 4984 bytes
SHA-256: ae4dca48dde7c8d356536646934c05c9d0dc836e93e2b52f1daa523e9edc55ad
font_01_sfnt_off0000fe51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE51 13564 bytes
SHA-256: 755eca7afddbb99afd0deb5d4faffd18b2bf927036d6b6ed29dc2ff5845c98d3