Malicious PDF — malware analysis report

Static analysis result for SHA-256 17feb6bc52371eed…

MALICIOUS

PDF

72.0 KB Created: 2021-02-27 00:27:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 9945f036aa4700f4bdfce0a35e6195af SHA-1: 17ecde1db7299103079478269f9a47202fd7978d SHA-256: 17feb6bc52371eed99c869533416f8ce6a60bbd088668f6450b687dabaf56c26
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xajibur.ru/award?keyword=macbeth+patrick+stewart+full+movie+youtube PDF link annotation
    • http://lakituman.iblogger.org/bolukew.pdfIn PDF document text
    • https://wekupadafar.weebly.com/uploads/1/3/5/3/135315244/8169602.pdfIn PDF document text
    • https://jesisime.weebly.com/uploads/1/3/4/8/134886507/jevufizadupufuk-rigejaxipax-lowar.pdfIn PDF document text
    • https://cdn.sqhk.co/wapogade/hjeljgH/i_remember_you_movie_review.pdfIn PDF document text
    • https://gevumonalibi.weebly.com/uploads/1/3/1/1/131164272/8752615.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495684/normal_5fcd56bbb75ad.pdfIn PDF document text
    • https://lumigoxodavi.weebly.com/uploads/1/3/1/6/131606620/paxewerukozix.pdfIn PDF document text
    • https://cdn.sqhk.co/vomisape/o4rijjg/golufazesaxu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491437/normal_5fcb090e78735.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495696/normal_5fce96f607d4b.pdfIn PDF document text
    • https://cdn.sqhk.co/najuvotuwoz/ajjTkib/blaze_of_battle_cheat_codes.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/bisute/38989962954.pdfIn PDF document text
    • http://besidoxaz.rf.gd/34175453532.pdfIn PDF document text
    • https://s3.amazonaws.com/bifamomove/jumakitixuwopexutaf.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzumeb/urdu_novel_alif_episode_12.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/web_design_proposal_template_free.pdfIn PDF document text
    • http://pamakejexo.epizy.com/diablo_3_wizard_disintegrate_build_season_19.pdfIn PDF document text
    • http://jumezezufa.rf.gd/50794142305.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_off0000dcd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCD8 5720 bytes
SHA-256: fe86cd517c8d974a7e9c6123dcbfc1407877d557b66622647a807d372ac652d5
font_01_sfnt_off0000f04f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF04F 10080 bytes
SHA-256: 3a3f8a197ded1894915da28b182aaf19ae67093db7c4012e777e631ea5d0bc4a