Malicious PDF — malware analysis report

Static analysis result for SHA-256 488fc440e2506c2b…

MALICIOUS

PDF

71.4 KB Created: 2020-07-29 23:09:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c5b385447eb89f6538ad14f15c95c253 SHA-1: d3f42f3ab228b238aabf519515776d9b7a318ab2 SHA-256: 488fc440e2506c2bb9309e445466b3b8bd5ccdf510d6c54635d7ff359d511ad0
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating it's a malicious redirector link farm. The document body, though heavily obfuscated, suggests a lure related to 'Sda hymnal staff pdf'. The primary malicious IOC is the ttraff.com redirector, which likely leads to further malicious content or phishing pages.

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=sda+hymnal+staff+pdf In PDF document text
    • http://files.columbushardscapes.com/uploads/1/3/0/7/130739076/4902564.pdfIn PDF document text
    • http://files.kauaicleaningdoneright.com/uploads/1/3/1/4/131454521/5213611.pdfIn PDF document text
    • http://files.esoteric-alchemy.com/uploads/1/3/1/3/131384113/saziropaxisi_xoxetimodukum_zujisalanovuku_vulofobez.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/1/0430/3313/3209/files/mutobajujis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8288/4006/files/53760385011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3888/4519/files/59097791489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3555/0118/files/fizedaditokube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4855/1068/files/50217965047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5788/6870/files/nitijexug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4519/9777/files/83328305143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7753/3856/files/bifop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3950/7100/files/35034730091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7218161301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0611/3430/files/bezimegizeboxemuxel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0324/0871/files/47547246283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4480/5525/files/70115725760.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 8

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_off0000cef7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEF7 4904 bytes
SHA-256: a191d5c1ffafd6bd2d3de74f1a149238c8c14fe6b0140c881e7a8d6e73330ce0
font_01_sfnt_off0000df77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF77 15456 bytes
SHA-256: 0be6e1d84947a1d299ebab8c982ecd6cab60dac1517a2834424f6589318cb0e9

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