Malicious PDF — malware analysis report

Static analysis result for SHA-256 d846c48f6c9e9dd8…

MALICIOUS

PDF

55.5 KB Created: 2020-08-09 21:05:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57777c5191948630c1d0ac47acdfe9ad SHA-1: 417dcce07c78b5422971e1588d409a0da2470057 SHA-256: d846c48f6c9e9dd813fb71d15d836787294e430ebe7c911ce3a539dc5dce75ea
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.ru. This suggests the document is designed to lead users to malicious infrastructure, likely for further exploitation or phishing. The document body contains obfuscated text and the target URL, reinforcing the malicious redirection attempt.

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=altered+states+paddy+chayefsky+pdf In PDF document text
    • http://files.rklearningstudio.com/uploads/1/3/1/3/131383544/3615778.pdfIn PDF document text
    • http://files.lonegalloper.com/uploads/1/3/2/6/132681823/2fdf4b63.pdfIn PDF document text
    • http://files.the-fringe-lab.com/uploads/1/3/1/8/131872015/falaxaxa-volibe.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/1/0428/5241/7703/files/senovideterasofale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9577/5650/files/xejexozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2793/1029/files/ximesemeduz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8118/8003/files/sisak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0808/9509/files/causality_in_physics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/87352952234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2754/5763/files/tegizenafozasenivimuvaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9917/6612/files/jujidisof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7777/1164/files/briggs_and_stratton_500_series_158cc_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5639/0559/files/abcde_assessment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78108387577.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 2

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_off000099b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99B5 5396 bytes
SHA-256: e6ff2fdd20387eb018f047bd35182a4f6820aeed4c616451ebb0ed25e76fde35
font_01_sfnt_off0000ac16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC16 10856 bytes
SHA-256: d3c6160a81bf524d27161cdc90ef9d1988686d817733f9e09da1754a129a4423

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