Malicious PDF — malware analysis report

Static analysis result for SHA-256 39a021178375207a…

MALICIOUS

PDF

39.0 KB Created: 2020-08-11 22:05:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 067ae4ed1aa4f1d764c93e9319bae1b8 SHA-1: 92d015f919f50c6d6fbe2cf550104d31a4b581fd SHA-256: 39a021178375207abf095cbc69fd355282c828b8ead69d01013ba0d3349478b0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=multi+agenda+fiscal+2020+pdf', which is flagged as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing.

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=multi+agenda+fiscal+2020+pdf In PDF document text
    • http://files.fordandfordins.com/uploads/1/3/0/7/130740165/3e65c978d6679.pdfIn PDF document text
    • http://files.mrsroe.com/uploads/1/3/1/8/131872178/wavenawogered.pdfIn PDF document text
    • http://files.citadelhomeinspections.ca/uploads/1/3/1/6/131637291/jemekif_modebafigi_lamif.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/1/0429/6271/4773/files/circle_of_willis_anatomy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1916/5086/files/tojipunoruwosujulolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6539/3831/files/83890382611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6944/8097/files/pivabomajopunepet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0306/0128/files/99305762714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8499/5991/files/rewuwagetufunijelefitefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9689/9733/files/bacillus_cereus_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0830/9923/files/mixusiluzufix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3913/6661/files/mutejufozitapemavexoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7247/0686/files/mabemobeji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3877/6223/files/lasko_heater_manual.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 2

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_off000058cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58CC 5508 bytes
SHA-256: a823e907a80178c359315d6e1c1cad75c01821486faf4c6d2266dc779f53d966
font_01_sfnt_off00006ba6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BA6 10456 bytes
SHA-256: c8642d46c3d5e2d8475de85aee4572214072f5fa9d7a66507ecdfd81e229ccd4

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