Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ef353d87cda23e5…

MALICIOUS

PDF

43.4 KB Created: 2020-08-20 07:19:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 71cbeb7ab1e1c37c6a12684f2c7cc6c2 SHA-1: 8bfe2690faa6fe181a10bd0413aad90519d0bcb2 SHA-256: 0ef353d87cda23e5df2f794fd0e53b5f9790f58bb2c3f0d8ed5f44b4bcaa8ad3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with a critical heuristic identifying them as a malicious redirector farm. The primary redirector URL, 'https://ttraff.ru/pify?keyword=date+format+python+month+name', is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to disguise the malicious intent. The presence of multiple Shopify links, some benign and some potentially part of the link farm, indicates a strategy to obscure the true destination.

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=date+format+python+month+name In PDF document text
    • http://xuwemer.stevendupuisoil.com/uploads/1/3/2/7/132740873/4581898.pdfIn PDF document text
    • http://files.romainewashington.com/uploads/1/3/1/8/131857193/ropodefi.pdfIn PDF document text
    • http://files.kennelgoodidea.com/uploads/1/3/0/8/130814227/7322cf5cd1e.pdfIn PDF document text
    • http://fizibade.salemfurniturerepair.com/uploads/1/3/1/4/131407995/badumukovere-gonitofivun-gawubiguroje.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/1/0428/3065/9750/files/nugibewagubolipapuzigifiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6667/1782/files/10946483905.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5071/1705/files/89984140505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5592/1817/files/29147868011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/desinizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7023/4527/files/lavabusuxabobojonive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9293/2763/files/76418515211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7483/7925/files/vadibam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0280/4898/files/librecad_templates_a4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1553/5774/files/clan_brujah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8501/9801/files/information_security.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_off00006301.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6301 5032 bytes
SHA-256: d1b53e48d66669c888172023047300cd42b51738d490b4b4a1e7a5df26980868
font_01_sfnt_off0000740b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x740B 14296 bytes
SHA-256: c92c33f3fa697a5cc11f36dca2300fa4770b7876b2edb600df6dbd218924245b

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