Malicious PDF — malware analysis report

Static analysis result for SHA-256 d69f1dda763541ab…

MALICIOUS

PDF

71.4 KB Created: 2021-02-23 15:50:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f1b9179fa970202c740c45b6fea00184 SHA-1: 14504144b5b13f41b7483230f370b950fc707d93 SHA-256: d69f1dda763541ab87371e31fc445d76e1fbabd3e71836e5b3e2e40e78b402c3
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://druttle.ru/wb?keyword=is%20defending%20jacob%20coming%20on%20netflix PDF link annotation
    • https://zitozujenuzudip.weebly.com/uploads/1/3/4/0/134042901/mobotifinivaju-rinedim-dokavis-nedeja.pdfIn PDF document text
    • https://jexafowasefuxuv.weebly.com/uploads/1/3/4/5/134588667/xibolelinibafuw-vafabuma-betutexanesine-soxibawi.pdfIn PDF document text
    • https://xogevowizixid.weebly.com/uploads/1/3/0/9/130969953/2657011.pdfIn PDF document text
    • https://vilabusifa.weebly.com/uploads/1/3/0/7/130776169/wajef-vuzodozuwavuje-xinorane-medefas.pdfIn PDF document text
    • https://cdn.sqhk.co/josipinu/pc8iaDj/kifope.pdfIn PDF document text
    • https://cdn.sqhk.co/besogevipadi/iiiahit/super_smash_bros_clash_nds_rom.pdfIn PDF document text
    • https://velaliwud.weebly.com/uploads/1/3/4/6/134644949/zizitizogowebabidu.pdfIn PDF document text
    • http://4bochki.ru/stihl_f5_56_rc_restringghda7.pdfIn PDF document text
    • http://feyakast.online/27349969345f3iag.pdfIn PDF document text
    • https://jorosovepi.weebly.com/uploads/1/3/4/7/134706332/1eb343dd.pdfIn PDF document text
    • http://worldhold.online/suxawufelikvhef.pdfIn PDF document text
    • https://wozijosetat.weebly.com/uploads/1/3/1/4/131407158/xijuregalevozoz_sapilenusa.pdfIn PDF document text
    • https://cdn.sqhk.co/madosodu/bARhjhH/49806736495.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/gofilafixu/85065788964.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/austria_league_2_table_and_form.pdfIn PDF document text
    • https://s3.amazonaws.com/napoledunadigo/crime_rate_in_south_africa.pdfIn PDF document text
    • https://s3.amazonaws.com/lerezazo/98349896056.pdfIn PDF document text
    • https://s3.amazonaws.com/dafumuxitupav/blood_template_for_powerpoint.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_off0000d9bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9BC 5464 bytes
SHA-256: a0b310904668813f78364e005baf94542bf59aa05077ada2ba2f0d33bdfcf214
font_01_sfnt_off0000ec53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC53 10516 bytes
SHA-256: 7d990398576f3adf582eaa0087d79fc271c9df66323b1fe3cec37bd9ce2d84ee

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