Malicious PDF — malware analysis report

Static analysis result for SHA-256 a89bff9c85ea88e4…

MALICIOUS

PDF

37.0 KB Created: 2020-08-01 22:45:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7fc2a770ef464c07ff9cfd8e7d9e36c SHA-1: 08762be2dc23e32566111a4c40bb1131f92de9e9 SHA-256: a89bff9c85ea88e4ba6c0c177cf6447af3dbf43c3ab7e1148a0f08ad7f8d24f2
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The embedded document body contains a URL pointing to a known malicious redirector, 'ttraff.ru', which is designed to lead users to further malicious content. Additionally, numerous other PDF links were extracted, many hosted on 'cdn.shopify.com' and other domains, suggesting a broad distribution 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=apple+composite+av+cable In PDF document text
    • http://files.northernsmokers.com/uploads/1/3/1/4/131437464/sodom.pdfIn PDF document text
    • http://files.agelessumedspa.net/uploads/1/3/1/8/131856706/jegolemepa.pdfIn PDF document text
    • http://files.les3c.store/uploads/1/3/1/4/131408798/5815b.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/1/0440/1519/0181/files/dideza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8094/9659/files/55460834584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7188/0870/files/59797844397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9052/5849/files/fakegaziz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1960/7962/files/sisituw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4796/0232/files/wixezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8117/9048/files/xakojonokije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6753/9623/files/jonuzotimajerigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/zaveminivozavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5335/7985/files/ligik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dilos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8251/3561/files/ripavi.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_off00004b26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B26 5172 bytes
SHA-256: 569ecf0aa99a06110d40450851a1b66c7f2bfd1fd6e4d3ae7b57d89303faf099
font_01_sfnt_off00005cb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB3 13896 bytes
SHA-256: 99dbf72561bf88f42a5ddbc8ff94b537ca252570693bf56ec79ddf9a5d688fd2

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