Malicious PDF — malware analysis report

Static analysis result for SHA-256 f913b206bef741ef…

MALICIOUS

PDF

65.9 KB Created: 2021-02-28 03:02:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 345e5811abecbd4ddf0df2291b5b6376 SHA-1: 87d0d28ab8e9e1e80a39e7dff496e13e3ecde9b3 SHA-256: f913b206bef741efa4b11ec883adad061e5280c047afbc2feb30a15ed37e19cb
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/aws?utm_term=polaroid+onestep+600+film+cartridge PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4479451/normal_6039ec7e80f13.pdfIn PDF document text
    • http://xedeporib.medianewsonline.com/what_is_chemistry_like_in_high_school.pdfIn PDF document text
    • http://lulumel.66ghz.com/11186976117.pdfIn PDF document text
    • http://bibuzikufaje.mygamesonline.org/39988335859.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452372/normal_6002512be0ac1.pdfIn PDF document text
    • http://sebaxupakokak.22web.org/zisalirivagigebunasodigaw.pdfIn PDF document text
    • http://vodabutopidaru.getenjoyment.net/kenwood_th-f6a_programming_software.pdfIn PDF document text
    • http://ergors.space/how_to_change_slope_intercept_into_general_formorujc.pdfIn PDF document text
    • http://jozipuvuwuzaj.mywebcommunity.org/have_you_ever_broken_the_rules_interview_question.pdfIn PDF document text
    • http://particulier-societegenerale.xyz/soothing_instrumental_musicqwsh4.pdfIn PDF document text
    • http://ig-socialmedia.xyz/18105687198oa7e5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sajomapujozokux.onlinewebshop.net/85286910472.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/xawirozevupimoxu.pdfIn PDF document text
    • http://lamekukibudinos.epizy.com/recruitment_tracking_excel_spreadsheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jakujakula/16-_8_intermittent_fasting_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/luropi/94687733047.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/fonibekisiz.pdfIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/gikababugejuzi.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_off0000c304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC304 5772 bytes
SHA-256: ac3ee440dddf424f21b131cde883eda0f3843d92e823ee66be0e85a95c9813a3
font_01_sfnt_off0000d69c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD69C 10512 bytes
SHA-256: 4c80aa0a420c4478ebddd44aa81499afaf531048770c6e70820a461f51a55a3c