Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a710491b38d1a0d…

MALICIOUS

PDF

33.8 KB Created: 2020-08-24 23:00:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2313ffa4dea42d7903a5fac94eb29042 SHA-1: 802a89da551eb5c015b5b223af243b3aa5b11015 SHA-256: 9a710491b38d1a0d4b1f08fd55703ef424c64719954a35fd1a20f57888062c08
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one heuristic specifically identifying a 'PDF SEO Link Farm'. One of these links, 'https://ttraff.ru/pify?keyword=dawn+dish+soap+sds+sheet', is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body appears to be malformed or obfuscated, but the presence of the malicious redirector and the link farm suggests an attempt to lure users to malicious sites, potentially for phishing or malware distribution.

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=dawn+dish+soap+sds+sheet In PDF document text
    • http://files.mathewglaisyer.com/uploads/1/3/1/6/131637219/1fbf736a224436.pdfIn PDF document text
    • http://files.iinternational.net/uploads/1/3/1/0/131071067/tuwivabone.pdfIn PDF document text
    • http://files.cefdauphin.com/uploads/1/3/0/7/130775897/wofimifirutuvemef.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/1/0431/7003/7917/files/87099955179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2508/4065/files/que_es_anlisis_foda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2242/6013/files/battle_trip_sub_indo_eps_148.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5463/6949/files/33773268004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8457/1031/files/39161670711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8022/9791/files/60443231942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5081/8969/files/biomaterials_science_an_introduction_to_materials_in_medicine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5851/1510/files/fepirugofobokajukoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4252/9695/files/zawupedomapanupunejupita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89832202682.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 5

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_off000047c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47C1 5012 bytes
SHA-256: 46629b76a17a0be3730addc0ecd1cfffb3c59d115b95b2f4525e603fbe83ff0c
font_01_sfnt_off000058e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58E6 9992 bytes
SHA-256: 02cc6d4cae1eff2b8518827ef89ea3aea4f9e33a44b71710446b5a08ed69ead0

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