Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee9c626d5ea56ea7…

MALICIOUS

PDF

41.7 KB Created: 2020-08-02 05:39:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 27c4da39e32e67782d3f09ec8b7a9617 SHA-1: 4be15bf7b8f2285a6fcff54e1acd41756c367560 SHA-256: ee9c626d5ea56ea767949eda8939b91de12004bcb16e52d439cab126beba9e49
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The ML classifier also strongly indicated maliciousness. The embedded URL 'https://ttraff.ru/pify?keyword=ross+course+guide' is identified as a malicious redirector. The document body contains numerous links, many pointing to shopify.com, but also several to other domains that are likely part of the link farm, suggesting a broad distribution or SEO poisoning tactic to lure users to malicious content.

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=ross+course+guide In PDF document text
    • http://files.paradives.net/uploads/1/3/2/6/132680962/27848285c4ec11.pdfIn PDF document text
    • http://files.mikenoffkemasonry.ca/uploads/1/3/0/7/130776602/5064539.pdfIn PDF document text
    • http://files.cfohtown.com/uploads/1/3/1/1/131164236/vuzologekovi_fudinigiko_gasejus.pdfIn PDF document text
    • http://files.teachermomlifeblog.com/uploads/1/3/1/3/131382797/rakemakigiri.pdfIn PDF document text
    • http://files.whirlpoolservicecenter.net/uploads/1/3/1/0/131070597/77bfb706.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/1/0430/2631/7473/files/12363819215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6017/4754/files/tigulanutubuzeli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0804/8808/files/57094694532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0372/2402/files/36526905347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7968/7574/files/foreach_vs_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1541/3658/files/lerefanin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0058/5632/files/senifigotakak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3600/0931/files/72779911990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6401/4501/files/datuvijupufuxabupokipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5791/3749/files/mivofimenizotiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/kovirugemitotusofug.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 6

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_off000063e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E8 4872 bytes
SHA-256: 3f97a5b7455899247326a2e0628cc7f969ecbca931811d9c28f253d765fd25fb
font_01_sfnt_off0000748f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x748F 11056 bytes
SHA-256: 1eccb3e5badfada9996cf6e5b1833aecf0b09efe49ae26a7362562012f9ead19

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