Malicious PDF — malware analysis report

Static analysis result for SHA-256 33e0a0d577833b4b…

MALICIOUS

PDF

51.7 KB Created: 2020-07-28 16:59:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0dd84e9ebbe5c7ce91f75f4e8c0383f0 SHA-1: 687ba5d911e87e53fb013b03c495c508cb29d69b SHA-256: 33e0a0d577833b4b7552f2b2b75ae8ca867167ef88bbe6f06b5d291d18adff80
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, pointing to the URL https://ttraff.ru/pify?keyword=administrative+law+canada+pdf. This suggests the document is designed to lead users to potentially harmful websites. While no scripts were extracted, the embedded links and the ML classifier's high confidence score strongly indicate a malicious intent for user redirection.

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=administrative+law+canada+pdf In PDF document text
    • http://files.nurturingnaturallyllc.com/uploads/1/3/1/8/131859895/ab5ec624.pdfIn PDF document text
    • http://files.littlemoonyogaperth.com.au/uploads/1/3/0/7/130739982/pataxiwiru.pdfIn PDF document text
    • http://files.musictheoryhelper.com/uploads/1/3/1/4/131408170/fevogasupemamij.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/1/0431/1570/8580/files/3004092939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/goliluvenuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2738/1920/files/58167107501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4215/8245/files/86926066479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/kixavetelesub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0042/1790/files/wodarekevijuzejixev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7383/1072/files/24656483367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1026/8064/files/zevaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/21237279538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6366/5062/files/linutuluxuxeranub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zukax.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008e38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E38 5120 bytes
SHA-256: 54e2f89996a6a341ec0696794aca2a6302972e1e748c822972a222049203ea0e
font_01_sfnt_off00009f94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F94 10040 bytes
SHA-256: f202f06f5ee80d8d3b5164eb2462870e7ca365cfac012439d5e1c849c7d822e9

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