Malicious PDF — malware analysis report

Static analysis result for SHA-256 d853a8c23c542d9f…

MALICIOUS

PDF

42.8 KB Created: 2020-08-18 17:40:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7373a81c9c20322bea769a08884d51f0 SHA-1: b5704c1388661d962f700bb718252031cd0bbb44 SHA-256: d853a8c23c542d9f25b4a71ef12d0c33d6764a5a6378444fa6fde40a3197461c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of the primary links, 'https://ttraff.ru/pify?keyword=bajirao+mastani+movie+dialogue+free', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and numerous other links pointing to Shopify and other domains, suggesting a coordinated effort to distribute malicious content or engage in SEO poisoning.

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/pify?keyword=bajirao+mastani+movie+dialogue+free In PDF document text
    • http://files.milandragicevich.com/uploads/1/3/1/4/131409333/2e523c38e.pdfIn PDF document text
    • http://files.lm1a.net/uploads/1/3/1/3/131384468/witik.pdfIn PDF document text
    • http://seripib.joshhayeswriter.com/uploads/1/3/1/4/131407406/nesepu-ramoniziromubiv.pdfIn PDF document text
    • http://zorisana.mountyhorseandsports.com/uploads/1/3/2/6/132682156/9802011.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0818/8839/files/tojipiside.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0710/6462/files/bernardino_ramazzini_libro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8468/5224/files/37873580439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5285/files/ziterotusefixapomadude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9462/0837/files/tigubim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4872/9766/files/43180508255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1362/7294/files/sovenotuviveresivupejon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3461/5708/files/rulobarikomadelijabifopef.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 4

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E1E 5292 bytes
SHA-256: b9814209760dc08adadcdec7c533a4ac02efc96be2b21118beee0a31990d5d58
font_01_sfnt_off0000600f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x600F 14752 bytes
SHA-256: 2991467520c2d937ac074a1084fff5811547a92500aa597be66c979fc8eda7aa
font_02_sfnt_off00008e8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E8C 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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