Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f67101d8b334c11…

MALICIOUS

PDF

41.6 KB Created: 2020-10-06 11:40:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-30
MD5: 2cf7e8958f68f3f016e0b3a899bdae41 SHA-1: ca36b53e989ad47246ec35f79422bbfad103dd7f SHA-256: 8f67101d8b334c11371e1e9a7544c036e5236b547ab1c4f7624921ed4ccadc54
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://cctraff.ru/strik?keyword=ryobi+bt3000+parts In PDF document text
    • http://wepoxi.r3dband.com/uploads/1/3/1/6/131636974/xavupugirinitore.pdfIn PDF document text
    • http://vojexijox.mrfluker.com/uploads/1/3/1/3/131379182/14b4add6551417.pdfIn PDF document text
    • http://files.mytempowalk.com/uploads/1/3/1/4/131406222/12357a4.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006440.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006440.bin)
    • https://uploads.strikinglycdn.com/files/68698376-0a32-4a60-95d2-54cf5b225210/50575446953.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdedd347-19a1-43ee-b8cd-7a0091392e8c/bamatuzategilolomoduno.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/828b59ff-c00a-4fdb-9485-e61ca706a712/bogaxosadotusasop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5ce71b2-90ee-4d5f-af13-c31f07eca276/goxer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b4a3ac2-3dbe-4caf-ae32-68d70b5ec82f/dipozopogaxijokaziforew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ea0414e-d6fb-489d-bd4c-a73dd6902405/48924088292.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2d187a6-fa92-411d-8788-428d07e1d127/90708468064.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42d11523-c651-4d51-96cf-52bb9bc01241/poveguzafaxotusizosena.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b15034a8-e110-4111-a493-5f52296fb28a/jiwajadavofegadivukir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0d2616c-016a-42d1-95d7-331d8106914d/89292800783.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_off00006440.bin)

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006440.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6440 5336 bytes
SHA-256: 1570ebc35fc7dfebdc0ad4e924ae82c8cfa5c6061c76dc64bbf2d70d412558f7
font_01_sfnt_off00007681.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7681 10328 bytes
SHA-256: fa0b58879506245195b3bb87840de584ae442550ba810d2e60ce68677db76f3f

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