Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f6d0945070232f3…

MALICIOUS

PDF

81.0 KB Created: 2020-12-03 00:21:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-30
MD5: 73ebbc17a943b7dde01bda7ac9c235b0 SHA-1: d100cd8488815e6e76464e380e62e4c3585e78dc SHA-256: 8f6d0945070232f39ec90d89f05eb6a4ad0008800d046cbcf0801cba6e2c66fb
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://kokexofagisukop.weebly.com/uploads/1/3/2/7/132710589/fuzujat-kazupupodok-wused-kopajiza.pdf In PDF document text
    • https://s3.amazonaws.com/kudowo/37871934141.pdfIn PDF document text
    • https://rebolaje.weebly.com/uploads/1/3/4/6/134696551/gureder.pdfIn PDF document text
    • https://pibazafefudo.weebly.com/uploads/1/3/0/7/130776509/boxowek.pdfIn PDF document text
    • https://bazojarazete.weebly.com/uploads/1/3/4/6/134650598/duxuzezebizofexasib.pdfIn PDF document text
    • https://traffking.ru/wb?keyword=dreamweaver%20form%20templates%20freeIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000e71a.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000e71a.bin)
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe1189173fb5383b69a99a/1606291863403/jaxuzevizoribajun.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e9f1b8467722f1d45afd/t/5fc80fc43f7f231df9dee7e5/1606946758759/37533980845.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e335a5bc066edfa5a857/t/5fc120a83c6ccf69f38612ec/1606492330087/wuraxup.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc00874a5bc066edfa0f7a0/t/5fc1fa499b1ed03538221977/1606548045286/luginavexalivit.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e5b8a3bf4b14aba92f9c/t/5fc405314e98326c028e6aba/1606681906664/fuwawiwaxelipokikomeki.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf6be53c6ccf69f356f9b0/1606380519025/77534860930.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0078111f6a4198480da42/t/5fc0e6083c02f22b9d2e38d2/1606477321750/36945169777.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 extracted file (font_00_sfnt_off0000e71a.bin)
    • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0001216b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0001216b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e71a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE71A 5196 bytes
SHA-256: 3b95a242ec79a3b1caf1937578e0badbd3d683382e5341bde08b096fdb783f85
font_01_sfnt_off0000f8cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8CF 12512 bytes
SHA-256: aa1de33d550c7a3b6bf2c5b144ffc573fc60283245291132f5291cbc638578b8
font_02_sfnt_off0001216b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1216B 16132 bytes
SHA-256: 6820151f9a4816bccc9e85e605aef44ce22c8924dfcccd161584754f275bf028