Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fd0caa2d49b2aa5…

MALICIOUS

PDF

93.9 KB Created: 2021-01-19 19:51:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 9c17c39a13cc2b648d29a8c8db4a3a03 SHA-1: 648a1d5dc9c8bd5373d08a87b601c596b321787f SHA-256: 1fd0caa2d49b2aa583931545f1e8dd47a47b6b7c995f11c38d2688552c837633
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://baarspo.ru/123?utm_term=ap+world+history+chapter+15+india+and+the+indian+ocean+basin PDF link annotation
    • https://cdn.sqhk.co/mewedenemez/dKyjija/42221098679.pdfIn PDF document text
    • https://cdn.sqhk.co/govazilose/ifkZhbq/37896564203.pdfIn PDF document text
    • https://cdn.sqhk.co/tinipuded/qe1hfja/phoenix_suns_players_1995.pdfIn PDF document text
    • https://cdn.sqhk.co/bajipugotox/rhdgcoI/crashing_season_4_cast_90_day_fiance.pdfIn PDF document text
    • https://cdn.sqhk.co/kafufojugure/fijehfJ/92330011037.pdfIn PDF document text
    • https://cdn.sqhk.co/sebutarukaw/Pielwjd/wink_smart_home_outage.pdfIn PDF document text
    • https://cdn.sqhk.co/webuzifinuno/ghOIibz/kidazaxotuwev.pdfIn PDF document text
    • https://cdn.sqhk.co/pubodegosog/AhhHiav/nokimejurinurujap.pdfIn PDF document text
    • https://cdn.sqhk.co/depifozopupe/XHsYdhb/portal_knights_2nd_boss_key.pdfIn PDF document text
    • https://cdn.sqhk.co/fizuborugas/jiaFiaP/sinimixeregerovafu.pdfIn PDF document text
    • https://cdn.sqhk.co/belesobikezi/0CgegjR/switch_lite_black_friday_2019.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/tanapilamaxi/varapijuwinomikibudafar.pdfIn PDF document text
    • http://xefokezutuvij.epizy.com/pdf_to_dwg_converter_free_filehippo.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/atrial_fibrillation_guideline.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/sudulatusenurubewuluvefiz.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_off000131dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131DC 5660 bytes
SHA-256: dcca78ed6c153ca70a5079bf0dc17b89d0bd659b5cc24c9b50f1db15eaf835e0
font_01_sfnt_off0001452e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1452E 11124 bytes
SHA-256: 394931802bfbc8cc4587a9da6b4f5771277c67acd7ca613c257ab1dfdeffbb8d