Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3041f1dfbd25c2…

MALICIOUS

PDF

38.8 KB Created: 2020-10-09 08:01:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 40e60300b70ca6ff1281309a4c3be5b8 SHA-1: 4d7067fbade98fb07e8169eccc2215068c7b38b1 SHA-256: 4e3041f1dfbd25c2ef4fccccf5c1ec2448c2471fd68fad37e48227f321522d28
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=the+magicians+pdf+download+free In PDF document text
    • http://files.imanusman.com/uploads/1/3/1/4/131437158/2321025.pdfIn PDF document text
    • http://files.capecodmedium.com/uploads/1/3/1/3/131379951/nagogopatatamu-zisadekobel.pdfIn PDF document text
    • http://xilataxo.shoestring-lifestyle.com/uploads/1/3/0/7/130776861/kenowikukonuku.pdfIn PDF document text
    • http://files.asoprimatologicacolombiana.org/uploads/1/3/1/0/131069987/jaromuk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c65fdd35-2a29-4231-a6d9-8540aa389211/luripukilinoxirimukofire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41bcdbb1-b5a6-4b83-a5b2-00ea9d1f65ba/45267135484.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f315142c-8a76-435c-8946-4f293d59d6a4/97137800826.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa9128af-5811-4b08-a5f1-e89e7166b603/wunusalosaxorarabaxina.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74400f97-01d8-4a52-a5d8-997e27d1d986/58519388974.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d63c1dd4-78f6-411b-bdc6-ad8d8a4faba9/tuvaxofa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c94d633b-ab2a-405f-af70-75db9f03766f/lelalux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d62bb62d-7f9e-4265-99b0-c1e5988cbd0f/foditevewif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd3bf3d0-2ddc-49b8-ad3f-a0b13323f0fc/kimaragak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86d2888e-b0da-49ad-bea6-eb601b61fefe/devetitaxezo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5cb15673-50a3-49bb-9c56-5880346e0b65/84619085028.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23f1d28d-5a87-46fa-b5a1-9a4b18c8fc64/92055946471.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7877730f-0874-4cae-9254-d51871ef68b0/259496121.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_off00005801.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5801 5612 bytes
SHA-256: 185c14e2fba5afc714ee2099a86406439852f603945be6c9826378c029e96fec
font_01_sfnt_off00006b02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B02 10384 bytes
SHA-256: b6124f4cc38c18ca186f6aa071ee9d43706bbb196e1ed7b6a9b7377585f10627

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