Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c30710b5978807e…

MALICIOUS

PDF

70.6 KB Created: 2021-02-24 21:18:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 66a2294ba03554c164a57be18f6df3e8 SHA-1: d66acaae4ed1559cbcf69a8e8f6b9f7df5516c04 SHA-256: 6c30710b5978807e7747d29068f4b063467914808bee5eff06970a395bf6392e
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://jacksth.ru/award?keyword=where+to+buy+wahl PDF link annotation
    • https://sezifiloxoxo.weebly.com/uploads/1/3/5/3/135348424/a6c23dc2a06ccd4.pdfIn PDF document text
    • https://vawosikajoj.weebly.com/uploads/1/3/1/4/131438279/882961.pdfIn PDF document text
    • http://bachanalytics.com/129562400478ux7n.pdfIn PDF document text
    • http://enots.space/feluwotozinanidipubuvamarazzx.pdfIn PDF document text
    • http://rasprodavaika.ru/how_to_be_like_king_daviddyqq0.pdfIn PDF document text
    • http://itash.space/rowuketuxevujihsvp0.pdfIn PDF document text
    • https://waxovidimised.weebly.com/uploads/1/3/4/4/134446407/3546528.pdfIn PDF document text
    • https://cdn.sqhk.co/sefibenip/jvXmsha/color_hop_3d_online.pdfIn PDF document text
    • https://rezepurobej.weebly.com/uploads/1/3/5/3/135327696/66484.pdfIn PDF document text
    • https://witabavuwimob.weebly.com/uploads/1/3/4/3/134339013/f9d88.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://s3.amazonaws.com/kugelilizibuwum/vufeboxelaxatodebudekav.pdfIn PDF document text
    • https://s3.amazonaws.com/xubifupi/argumentative_essay_about_internet.pdfIn PDF document text
    • http://reditab.epizy.com/gefujomovesitesorid.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/ios_simulator_for_mac_free.pdfIn PDF document text
    • https://s3.amazonaws.com/legobegutulo/behavioural_interview_questions_and_answers_for_receptionist.pdfIn PDF document text
    • https://s3.amazonaws.com/bufexa/vevaruwujerowojigilowa.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/graduation_party_invitations_templates_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sajezife/vemedadasavutixewija.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/yankees_stadium_seating_guide.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_off0000cb01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB01 4672 bytes
SHA-256: ce9e3243b685950dd4266d154163306d375062bbb077cda6597b96ca75c28755
font_01_sfnt_off0000db19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB19 10732 bytes
SHA-256: 1b20f234ffed990a83114a5ef7a8bacf12f0eed4fd0bae6f931dafe5db093acd
font_02_sfnt_off0000ffa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFA9 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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