Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb37a0f2ed490e1e…

MALICIOUS

PDF

41.6 KB Created: 2020-08-26 10:57:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7ae0190bdb62522fe8e225d5bba35fd SHA-1: 4732baa09c6dc922297a1147c1cf522a6a123860 SHA-256: eb37a0f2ed490e1edd29c73c24518b37b7e85522fd9f1253b10404d90ea86bc6
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://ttraff.club/pify?keyword=incoterms+2012+deutsch+pdf' is the primary indicator of malicious intent. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various PDF files, likely to improve search engine ranking for malicious purposes. The ML classifier strongly supports the malicious verdict.

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.club/pify?keyword=incoterms+2012+deutsch+pdf In PDF document text
    • http://mesibuki.morningdogcoffee.com/uploads/1/3/1/6/131606457/xaposarol.pdfIn PDF document text
    • http://files.grizzyathletics.com/uploads/1/3/0/7/130739693/a3a3f.pdfIn PDF document text
    • http://files.edgerealtyph.com/uploads/1/3/1/3/131379699/figisaz.pdfIn PDF document text
    • http://rolakat.newbeginningpentecostchurch.com/uploads/1/3/1/4/131438684/7874542.pdfIn PDF document text
    • http://xisodaw.riverranchgoldens.com/uploads/1/3/0/9/130969191/442400.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/1/0434/5056/4773/files/chemistry_notes_for_ssc_cgl_gradeup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8857/5638/files/nuzurununo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6558/1469/files/70072033438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3485/9941/files/68779635820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5498/0505/files/create_ringtone_from_youtube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8148/9829/files/32286651913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2099/9064/files/32469802773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7868051279.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_off00006559.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6559 5416 bytes
SHA-256: 9549d1cc512f2eedaa0b1eec96f2a58b5db40db682b5f46d13e625b183cd1e33
font_01_sfnt_off00007799.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7799 9984 bytes
SHA-256: 49d873530ccac434889e92d0d549e71ecd48723d03056759707e06be04f4c698

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