Malicious PDF — malware analysis report

Static analysis result for SHA-256 d547583c484d0739…

MALICIOUS

PDF

41.0 KB Created: 2020-08-27 22:12:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3e50db7682b56762ee57df266b49df15 SHA-1: 60662ab38da49e976d70aa6c679f8ff87df52fd1 SHA-256: d547583c484d0739a0b718bcbd082bfe21b3a64e51b018a5226dc45360304f55
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, with one identified as a known malicious redirector. The document body text is obfuscated and appears to be junk data, but the presence of numerous links, including one pointing to `ttraff.com`, strongly suggests a phishing or malware distribution attempt. The heuristic firings confirm the malicious nature of the embedded links and the link farm structure.

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=a+new+pair+of+glasses+chuck+chamberlain In PDF document text
    • http://files.jamescookcomedian.com/uploads/1/3/0/9/130968920/7809545.pdfIn PDF document text
    • http://diwewedew.shrevewoodpta.org/uploads/1/3/1/6/131606349/495148.pdfIn PDF document text
    • http://files.glenridgetkd.com/uploads/1/3/1/4/131483282/2125531.pdfIn PDF document text
    • http://dafofezak.altcoin-tax.com/uploads/1/3/1/1/131164250/vuvisakuboweduden.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/1/0431/7931/1268/files/86557787294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8831/3506/files/83028186857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2402/3715/files/medaxomexifakejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sazofafusogowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8615/9767/files/74711609752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9897/1038/files/11350707937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7342/0965/files/2812600581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3550/8387/files/dinuwufefevifot.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 6

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_off00005399.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5399 5516 bytes
SHA-256: efc74c0cb265c55143a158f5cde5f6ebcc7f669201cfaafe81f9671c9e87053e
font_01_sfnt_off00006635.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6635 10176 bytes
SHA-256: 5c4922e4cc861c6dedf331622c17dd91fcbc4326b1e9983e3fd394a3fcad3c6d
font_02_sfnt_off00008916.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8916 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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