Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f1a2e40ca851556…

MALICIOUS

PDF

55.4 KB Created: 2020-08-05 11:32:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 32628924d97ae672838fa25756f57980 SHA-1: 3b907452dd9f538ed37e06320f18ce0817ef8053 SHA-256: 9f1a2e40ca8515563b1e04f777218f283c22bb2267eada4e9d22eba5f55c9a82
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one identified as a malicious redirector (ttraff.com). The document body, though heavily obfuscated, contains the same URL and keywords suggesting a lure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the malicious nature of the embedded link, and ML_NYX_PDF_MALICIOUS indicates a high probability of maliciousness. The primary attack pattern involves directing users to malicious infrastructure.

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.com/pify?keyword=bodas+de+sangre+federico+lorca+pdf In PDF document text
    • http://ketip.emptinessenergetics.com/uploads/1/3/1/4/131407469/ea5f4.pdfIn PDF document text
    • http://xisux.mycolloids.com/uploads/1/3/0/8/130874317/3075093.pdfIn PDF document text
    • http://files.kraftabulouskreations.com/uploads/1/3/1/4/131437680/moxenelaludi.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/1/0432/9088/6299/files/45393893157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/97713719423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/sibefev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/ramifop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1261535930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7373/2768/files/debukofadovejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6197/8023/files/77818238935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4235/5865/files/41459744067.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0171/5622/files/97725169329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5623/3638/files/97320135820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6845/files/62204498573.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009626.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9626 5372 bytes
SHA-256: cc75343358395d854b262d7af0303c74fca82edcc856353df3943fe54c6fe619
font_01_sfnt_off0000a87f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA87F 11848 bytes
SHA-256: fe5f871fd2d90ab0b54fe6e4bc8f56eb86a7497033a7626b253bf0f345dc4ede

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