Malicious PDF — malware analysis report

Static analysis result for SHA-256 742aeff2e9dce9bc…

MALICIOUS

PDF

46.5 KB Created: 2020-08-10 23:30:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dcdafac104ee784cf7184af4bfeb9d3a SHA-1: d8332d01483dd8d648b9d2556c83a9cf75e73fb0 SHA-256: 742aeff2e9dce9bca0b96683503e6d490be2b0afde11136eee0928f1b94be84b
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDFs, many of which are hosted on what appears to be a link farm designed for SEO manipulation. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=agenesia+renal+fetal+pdf'. This suggests the document is part of a phishing or scam campaign, likely using the 'free download' lure to direct users to malicious sites. No scripts were extracted, but the presence of embedded URLs and the link farm heuristic strongly indicate malicious intent.

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=agenesia+renal+fetal+pdf In PDF document text
    • http://xawetawi.creeksideinthecanyon.com/uploads/1/3/2/8/132814930/4400748.pdfIn PDF document text
    • http://rovod.feastva.org/uploads/1/3/0/7/130739024/xapizinokejeji.pdfIn PDF document text
    • http://files.oleanbarbershopchorus.org/uploads/1/3/0/7/130776175/tejifo.pdfIn PDF document text
    • http://fizidako.derrickjackson.com/uploads/1/3/0/9/130969352/pekefexi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4782/8133/files/1021282056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4433/8838/files/45398505841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8152/2599/files/nidedixavibukirupopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1075/2663/files/wavemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12035000993.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0473/1300/files/kujuxani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7065/5381/files/interview_questions_and_answers_for_science_teachers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9200/0406/files/92040576802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8184/3353/files/nomemovajagogavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5082/6905/files/niroxo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C29 4876 bytes
SHA-256: f80c9cd6bbeac0b22a7876e88fc96ee5e9e15f9d14728f4082c215dd4bdba7cb
font_01_sfnt_off00007cbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CBE 9976 bytes
SHA-256: 47a69b3f6bff78d0dfd4b5ad1bfe6f5fc9843b7e793984e0a986925743cdef3e
font_02_sfnt_off00009ec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EC2 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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