Malicious PDF — malware analysis report

Static analysis result for SHA-256 62461688a8fe294c…

MALICIOUS

PDF

43.3 KB Created: 2020-07-31 07:39:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b0266b64d0d06a57cc4ee9445f6c0469 SHA-1: ed8e26d8727b1843d217b6675315bc93470495c2 SHA-256: 62461688a8fe294c54d4db52a4295e0f148a34137f79c201b11aa1f1d4784bd7
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm designed to mimic legitimate downloads. The primary redirector URL, 'https://ttraff.ru/pify?keyword=la+valse+d+amelie+piano+noten+pdf', is flagged as malicious and is likely used to funnel victims to further malicious content. The ML classifier strongly indicates maliciousness, supporting the attack pattern of a phishing lure.

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=la+valse+d+amelie+piano+noten+pdf In PDF document text
    • http://files.chantolaspinall.com/uploads/1/3/0/7/130775551/lulusap-sonirap.pdfIn PDF document text
    • http://files.fourthmoonmusic.com/uploads/1/3/2/7/132741225/7c5c95931736a.pdfIn PDF document text
    • http://files.baragisladottir.com/uploads/1/3/1/4/131437792/nipunobolepebez-magizob-zutodilaniram.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/1/0431/1311/9905/files/84959254512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1517/5317/files/40752094209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7732/8278/files/tixonivufoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4871/3896/files/30918340146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3459/1907/files/40394676976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5119/6315/files/98010281957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4571/6129/files/kaxebugawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4565/0586/files/rizulitedifil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11085861466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tivaluzisezulumavolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9140/2660/files/vimobowuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0216/6435/files/kidisepejofewudufaxaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/37741658126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7783/6702/files/83565738402.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0D 4880 bytes
SHA-256: d762da703b91deaf019f40681de4fe001169e0d8c7622dc2821502c597e38a2e
font_01_sfnt_off00007b99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B99 11020 bytes
SHA-256: 8ea23a10245bbafe14ae8e2089d853e22bc1bd7a4e04c46c5fc34b5e9025116c