Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b2281188c36bdbc…

MALICIOUS

PDF

35.5 KB Created: 2020-08-07 17:27:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 47378b17adb1faa68624d59c96a58260 SHA-1: 83892495cd5ae1aa6b5df32d4aa86029d9d82530 SHA-256: 5b2281188c36bdbc4f023da5a14b7b73bec874619850ceca84294d1010966c74
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document is designed as a lure, employing SEO tactics and a link farm to direct users to a redirector URL. The primary redirector, https://ttraff.ru/wb?keyword=radical%20love%20victory%20worship%20chords%20pdf, is associated with malicious activity. The document body contains numerous embedded URLs, many pointing to Shopify domains hosting other PDF files, likely part of a larger link farm operation. The ML classifier strongly indicated maliciousness.

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.ru/wb?keyword=radical%20love%20victory%20worship%20chords%20pdf In PDF document text
    • http://files.stjohnthebaptistdeanery.com/uploads/1/3/1/0/131070560/6a52328b.pdfIn PDF document text
    • http://files.lynettelashes.com/uploads/1/3/1/1/131164097/xobolibivoz.pdfIn PDF document text
    • http://files.cecilyeiferle.com/uploads/1/3/0/7/130776850/somakiwino.pdfIn PDF document text
    • http://files.towncreekvision.com/uploads/1/3/0/7/130775357/feduku.pdfIn PDF document text
    • http://files.insideemilyshead.com/uploads/1/3/1/3/131380493/desejalexakos.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/1/0433/4508/4574/files/metokubakore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4939/files/97216324016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3720/2344/files/wakux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9317/1103/files/validuwevulusedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1024/3229/files/63643226712.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2499/8819/files/22841176681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7100/5082/files/vedic_mathematics_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0024/0024/files/surface_chemistry_notes_class_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0745/1042/files/budegasuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8995/8814/files/63908164491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98223768302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1999/2222/files/94477311443.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_off00004daa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DAA 5504 bytes
SHA-256: a6deeb0f1e4a12c030ff4670dabe1cdb99a506dd896276ef5ae0067d9e089552
font_01_sfnt_off00006080.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6080 9556 bytes
SHA-256: 589398e9fe985c83df00e4b29bbac32928aecfc666119816e7c0b932fa36e361

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