Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0909cb0e98654cb…

MALICIOUS

PDF

38.2 KB Created: 2020-08-18 20:03:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 130d615ec136ceeecbd2fd93317c6645 SHA-1: 4624f266f84630e6b8e046f2fb146d760e16b627 SHA-256: f0909cb0e98654cb6e1ba4c69391e5084e54453f85bd88f55efb350e8ba6fa99
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=mechanical+engineering+innovative+projects+pdf', is designed to lure users into clicking it under the guise of relevant content. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, many hosted on Shopify. The ML classifier strongly supports the malicious nature of this PDF.

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.cc/pify?keyword=mechanical+engineering+innovative+projects+pdf In PDF document text
    • http://files.eurojpconsulting.com/uploads/1/3/1/8/131856415/1d24d5ef.pdfIn PDF document text
    • http://files.norawickman.com/uploads/1/3/1/3/131380723/najasewivedof-birugugu.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/1/0434/4627/2162/files/59613814500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4324/9563/files/sepetewovuriti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6674/4214/files/nisidedejebubenusosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4329/8207/files/jisezezikiduwabeponugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3614/5814/files/24776045468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8020/3944/files/hiperalgesia_y_alodinia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3462/4679/files/zinelinetejozigilufomub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7663/9134/files/zekiwameb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8921/6167/files/66922472090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1966/3522/files/30561206665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7663/2214/files/bodazamubova.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_off00005846.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5846 5560 bytes
SHA-256: d83052a5130b299e20e4bd56ced93bcfc60134b57ef12febe9cc6e45d626ef6a
font_01_sfnt_off00006b2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2F 9548 bytes
SHA-256: e7a54ee537e19125b76217dc4e9837f4d95b002564785f959632ddc8e3662380

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