Malicious PDF — malware analysis report

Static analysis result for SHA-256 035878fa8f8ffac7…

MALICIOUS

PDF

41.4 KB Created: 2020-08-26 16:53:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c135124521e15cfbb32656f168f66ddd SHA-1: 5f4a340dd1f4ba6a372786fd2ff864ed0246e95d SHA-256: 035878fa8f8ffac72c25d4ba36c8d514808f5f07feea84d342164f10d663acde
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many of which point to a redirector infrastructure known for malicious activity. The primary redirector URL, 'https://ttraff.club/pify?keyword=cancion+parisina+acordeones', is identified as a malicious link. The document's structure suggests it's designed to host a link farm, likely for phishing or malware distribution, masquerading as a free download. No scripts were extracted, but the extensive use of redirectors and the ML classifier's high confidence indicate a malicious intent.

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://ttraff.club/pify?keyword=cancion+parisina+acordeones In PDF document text
    • http://files.finalmile.ink/uploads/1/3/0/8/130814605/787699.pdfIn PDF document text
    • http://files.tcfa.org/uploads/1/3/1/3/131383698/6423616.pdfIn PDF document text
    • http://files.lillianchun.com/uploads/1/3/1/3/131383791/kufefonat.pdfIn PDF document text
    • http://bogew.barcfriends.com/uploads/1/3/0/9/130969264/363dbad.pdfIn PDF document text
    • http://files.treeoflifeinternationalchurches.org/uploads/1/3/1/4/131406153/takelodezex_wasejejuvu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2342/3912/files/zuxowinojinigiwoboponas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8525/0216/files/fanuc_rj3_controller_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mojarugalemidim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4807/4405/files/xixefivowugemodunakakol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2161/5775/files/25944852421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/ditizujewixomavazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31321710084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8789/6488/files/wimuzulazawadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3287/0044/files/35122448464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/gotovojabekoje.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

Related samples 8

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_off0000662c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x662C 4940 bytes
SHA-256: 27a01e1b0d86181120f5932be9deb36e8bf327c27e73cfab684454cd1a1b257c
font_01_sfnt_off000076f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F8 9876 bytes
SHA-256: 40d51426936d15eb6c4cf4762b03b36cb37882e95333c42f45411a283b2f7883

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