Malicious PDF — malware analysis report

Static analysis result for SHA-256 205dba2d5865f886…

MALICIOUS

PDF

37.9 KB Created: 2020-11-04 03:02:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-20
MD5: 493bc7e8eb8975457e57be8d624ab360 SHA-1: 81f6453b6e388935e6bd964bca7dee30777d4957 SHA-256: 205dba2d5865f886371b40b8050b6508895295aca256acf54a3be90d5304d050
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/wb?keyword=gear%20shift%20covers%20automatic In PDF document text
    • https://cdn-cms.f-static.net/uploads/4393889/normal_5f9e2896835a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367940/normal_5f9a047ea2c2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389097/normal_5f94d1ef85cb0.pdfIn PDF document text
    • https://latijazaw.weebly.com/uploads/1/3/4/3/134312978/vigovorudolu_zixaniwiza.pdfIn PDF document text
    • https://bavejojonosepes.weebly.com/uploads/1/3/1/3/131380601/7ad880e9c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366055/normal_5f86ff929910a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386354/normal_5fa0bbcc972c8.pdfIn PDF document text
    • https://s3.amazonaws.com/mipeboro/70536364949.pdfIn PDF document text
    • https://limikasideg.weebly.com/uploads/1/3/4/4/134446439/c3f276d1374602.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410983/normal_5f950e76bb900.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004dd7.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004dd7.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00007d31.bin)
    • https://uploads.strikinglycdn.com/files/ca9fe8c3-8a17-489b-95d1-0f0710f6fa17/88582062769.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_off00004dd7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004dd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DD7 4956 bytes
SHA-256: 768c86201f939eb9e6a6e37bea58cc4241fb1e90c0056f5f176e557f9ba0e760
font_01_sfnt_off00005ec4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC4 8948 bytes
SHA-256: 487facc094d381468cd28020e4027504ed1d7590dd8d783d4ca3b49257d5a4a4
font_02_sfnt_off00007d31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D31 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f