Malicious PDF — malware analysis report

Static analysis result for SHA-256 68ab3c467f0a51b0…

MALICIOUS

PDF

47.8 KB Created: 2020-08-16 10:55:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 045d93d776bfd19cd8c3800ca834d5c3 SHA-1: 65f8efa99865978eed3f4f82fc00bfccd6256fea SHA-256: 68ab3c467f0a51b01fe1a563c059721aba8b080521a01bd79f87e0d1d5f5dbe7
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious URL, identified as a redirector for SEO link farms. The document body text, though partially garbled, includes the same lure text as the malicious URL, suggesting a phishing attempt to drive traffic to malicious infrastructure. The ML classifier also strongly indicated maliciousness.

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=references+page+example+apa+format In PDF document text
    • http://files.soulsearcherskernow.com/uploads/1/3/1/0/131070912/6157150.pdfIn PDF document text
    • http://fikiluda.nawalphotography.com/uploads/1/3/1/4/131408280/6518416.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/1/0430/5453/0714/files/1282531212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1682/0635/files/chemistry_matter_and_change_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jatud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vunususojorimit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1466/5878/files/test_czasy_przesze_angielski.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5035/2296/files/40531926836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1143/2857/files/luvawezedelunoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9409/6539/files/plural_of_mongoose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6090/3582/files/12368265013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7876/9045/files/zomowubibikogajamujo.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 1

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_off00006fb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB7 5148 bytes
SHA-256: 81bec8e529cfdfb27b71d910f35c9f090b90ccd64ec0fc43bc7a361ed2b42978
font_01_sfnt_off00008126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8126 10060 bytes
SHA-256: 1a4031cae41751e257dc79c399b73a38ec5fd5207d5ca0425be93bd5cbd15c15
font_02_sfnt_off0000a3ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3AE 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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