Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa85184f691d6bd4…

MALICIOUS

PDF

74.4 KB Created: 2020-12-28 08:17:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-07
MD5: 49c14654ad8f1d404642fb3b076b43f7 SHA-1: 558f8ec5700a902e8361ef180977349205358eb5 SHA-256: aa85184f691d6bd40df6a717dff681fa45496edada0dbd047e7f3f4c473bc104
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffset.ru/wb?keyword=runescape%20recharge%20crystal%20bow PDF link annotation
    • https://cdn.sqhk.co/maputaliki/9gjCUha/kid_birthday_party_rentals_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/disovaje/hciaiaj/mesurujuzavik.pdfIn PDF document text
    • https://baxufolodamiz.weebly.com/uploads/1/3/1/4/131408032/welosabi.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/xipavir/cissp_domain_1_security_and_risk_management.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3133ed4f-f0fd-4b29-b9fc-c7699ba89484/zebaramawufari.pdfIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/vekujomugolexi.pdfIn PDF document text
    • https://s3.amazonaws.com/nagev/duxivilifekifotam.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/kc_summer_slam_tennis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58fee668-b490-437b-a8fe-1a31b270e9ed/11556502265.pdfIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/lend_lease_corporation_limited_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/gezejoputiwinu/vokozoliwase.pdfIn PDF document text
    • https://s3.amazonaws.com/zalisujezajaje/geziten.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13d77ceb-48d9-44e9-81a6-6d3be6b68f92/fortnite_account_free.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_off0000e6bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6BB 5536 bytes
SHA-256: 7ea07e3e4240e83f52af8d49e7df6ba22fa3f1cacc7231750f0c966c6ba53d6e
font_01_sfnt_off0000f9a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9A7 10364 bytes
SHA-256: 9c5a395ae8b651cfb54465c491508b1f338ec36b85d4a53ab8b5d9ef54d3dbba