Malicious PDF — malware analysis report

Static analysis result for SHA-256 a205729a16203104…

MALICIOUS

PDF

43.7 KB Created: 2020-07-31 20:52:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f027d2011ad991402d2142ee18cf4658 SHA-1: 1b5d350c991e4fbd1ab708d6de1d56af0c07d299 SHA-256: a205729a16203104d2d09f35d02a3fba1ad5ed873c8bde525a9cf0b03d3b1e87
194 Risk Score

Malware Insights

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

The PDF document was flagged as malicious by an ML classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=table+saw+workstation+pdf, which is likely the primary malicious payload delivery mechanism. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external links, many pointing to shopify.com, likely for SEO manipulation or to host further 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.com/pify?keyword=table+saw+workstation+pdf In PDF document text
    • http://files.decatursistercities.com/uploads/1/3/1/1/131164317/d6a540a703a.pdfIn PDF document text
    • http://files.bethcarina.com/uploads/1/3/2/7/132740586/leramugirimefiko.pdfIn PDF document text
    • http://files.aklkansas.com/uploads/1/3/1/0/131071067/5383156.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/1/0430/2641/5779/files/lineage_os_kindle_fire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/79020674719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7767/2868/files/desafos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/kamosibenopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1288/1564/files/xekajaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/tagagaxileluxuvogesetulan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/83825517406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pajovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0471/5427/files/bolawapobasagegobomileko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1020/1499/files/42982970582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0613/0337/files/suxosojuvigopimekaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7952/3751/files/zofoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0219/2287/files/23711036847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7390/4545/files/22263188366.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_off00006cf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF9 5280 bytes
SHA-256: c847aa31a7c825fb120e8d931892b744c49a342e60583716bb1c5597dbbb0ae4
font_01_sfnt_off00007f09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F09 10196 bytes
SHA-256: 3ca5d3dbb50600947c3471bfbbcc51d45ec73374162f8e94aa3e03a8968904c0

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