Malicious PDF — malware analysis report

Static analysis result for SHA-256 a06d8a8e35d43667…

MALICIOUS

PDF

64.1 KB Created: 2021-02-01 20:06:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b504367ec84e9088b551d5f7bdb855bb SHA-1: b29d70895651fc6bd6055a328aa4e4d0ec8b53ea SHA-256: a06d8a8e35d43667c9c8d11a15d30dc1cafc106f79f5e89b4d0abcd4de9db5df
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://seumenha.ru/aws?utm_term=badshah+full+movie+free++mp4 PDF link annotation
    • http://pajebunekelisom.22web.org/nerabusotuwaloji.pdfIn PDF document text
    • https://nuxowodevuj.weebly.com/uploads/1/3/4/6/134609076/4170303.pdfIn PDF document text
    • https://cdn.sqhk.co/matezafun/3vhbq6O/6502828188.pdfIn PDF document text
    • https://cdn.sqhk.co/zanotunuzi/jhge8jb/davividarebibirukig.pdfIn PDF document text
    • https://pimetukuke.weebly.com/uploads/1/3/4/0/134017259/banebajabezivomu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zumebixakefeta.epizy.com/archero_chapter_3_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/linear_guide_rail_design.pdfIn PDF document text
    • https://s3.amazonaws.com/kakef/beneteau_sense_50_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xixonu/19170700803.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/zozoze.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/13278855063.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/correlation_and_causation_worksheet.pdfIn PDF document text
    • http://gebejofokim.rf.gd/10785434244.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/38328944675.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/autumn_leaves_printable_templates.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_off0000bdab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDAB 5476 bytes
SHA-256: 8889d1d12c30728a86d9063e235c5afa0131e5807fd7cfa4272470154b3a062b
font_01_sfnt_off0000d034.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD034 10456 bytes
SHA-256: 5ec026d6455beefb87516966e8da33d29a861af181599f9d01f36d0a58fd923a