Malicious PDF — malware analysis report

Static analysis result for SHA-256 375a9c96b354451b…

MALICIOUS

PDF

70.3 KB Created: 2021-03-04 00:15:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: db57d771be22a4e72da6da659080f4bf SHA-1: 9e5b1d3b12c2d26e6a0645bd36fbac333c6795dd SHA-256: 375a9c96b354451bd00aca91ed6a58aad122722d6a8d4f7856209797265223a2
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://soxebez.ru/award?keyword=halo+books+box+set PDF link annotation
    • http://sadinexiwa.mygamesonline.org/24096989852.pdfIn PDF document text
    • http://palikexifumalam.mywebcommunity.org/sapivuvisak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484835/normal_6016c364ebe18.pdfIn PDF document text
    • https://cdn.sqhk.co/rapawaferew/6Wgj5x7/baperotokutevosujuko.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443344/normal_5fcc5650c46d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383460/normal_60352418e2e89.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xibupafuvobiluk.rf.gd/becoming_human_part_2_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/aashto_lrfd_bridge_2012.pdfIn PDF document text
    • https://s3.amazonaws.com/pojikovewijeja/most_difficult_would_you_rather_questions_of_all_time.pdfIn PDF document text
    • http://weponigonimogo.myartsonline.com/lozopolirusi.pdfIn PDF document text
    • https://s3.amazonaws.com/sevoga/xenoblade_2_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/where_to_donate_furniture_in_mercer_county_nj.pdfIn PDF document text
    • http://timerojulawu.myartsonline.com/gosifogenetag.pdfIn PDF document text
    • https://s3.amazonaws.com/nevovumowa/bijuworugobidevuxunu.pdfIn PDF document text
    • https://s3.amazonaws.com/mizeteb/ravizowirinixev.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_off0000d613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD613 4816 bytes
SHA-256: fe90ab980a56484daffbe703666aeb7e110c7b12c12145b55e9159e3a2fa35be
font_01_sfnt_off0000e687.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE687 10664 bytes
SHA-256: 2fad35d873c448c176db5f37d214be451e6682c0e31b933081d786d0b50769ac