Malicious PDF — malware analysis report

Static analysis result for SHA-256 43ec7cb6ab5da072…

MALICIOUS

PDF

63.7 KB Created: 2021-02-16 03:29:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 40b665c751355f039eb0fb44aaa21151 SHA-1: e1fc112ff991fcac02bbe540f57dacd01d865273 SHA-256: 43ec7cb6ab5da07248d9ca7afc59c6a32bdc759cdaaf2d3355bf86430e1c1357
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://bologen.ru/wix?keyword=the+orvis+guide+to+beginning+fly+fishing PDF link annotation
    • https://busuwezaba.weebly.com/uploads/1/3/4/0/134042496/zenanenerut-ziguturagamer-mijuwebo.pdfIn PDF document text
    • https://gixujadimi.weebly.com/uploads/1/3/4/7/134708567/07ee796.pdfIn PDF document text
    • https://mebedepubini.weebly.com/uploads/1/3/0/8/130813558/zexuxezunadoxasuxuma.pdfIn PDF document text
    • http://manaxupupili.iblogger.org/sample_agenda_and_minutes_templates.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/kasuwevovog/whatsapp_plus_apk_file_for_iphone.pdfIn PDF document text
    • http://gukisika.rf.gd/du_llb_entrance_exam_2018_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/bennett_movement.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezux/illustrator_watercolor_texture_free.pdfIn PDF document text
    • http://wuzuzifo.epizy.com/que_es_biforme_en_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/blanka_lipiska_chomikuj.pdfIn PDF document text
    • http://xuramilipadig.rf.gd/arcgis_10._7._1_crack.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/lumurudewutum.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/rugepifikorimur.pdfIn PDF document text
    • https://s3.amazonaws.com/wurivuve/fefomaxopafek.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/cnil_rgpd_guide_pme.pdfIn PDF document text
    • https://s3.amazonaws.com/mejados/83709398404.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/papawugefetuguno.pdfIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/naropipuzibufaparoru.pdfIn PDF document text
    • https://www.orvis.com/p/the-orvis-guide-to-beginning-fly-fishing/2h45In 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_off0000bda2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDA2 5212 bytes
SHA-256: c3bd5c5e8621cf0dff7323e3f861f93521c40875c6ac1b29a576bad66ddec19a
font_01_sfnt_off0000cf63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF63 9988 bytes
SHA-256: b1b059cb1a82904629ff35c251037df97523bf96c35fc7a22835c67dc8b0e47b

Open this report in the interactive analyzer, or submit your own file for analysis.