Malicious PDF — malware analysis report

Static analysis result for SHA-256 03437d7860f68ae5…

MALICIOUS

PDF

38.4 KB Created: 2020-08-03 06:38:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 659fe264d08636bcbaab97fee9bdb7ba SHA-1: e5f747053a56952776162c2c0780086177b1f450 SHA-256: 03437d7860f68ae5ac4f95331899a590406f3998193414c7ed63652b95257846
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, likely as part of a phishing or scam campaign. The document body, though partially corrupted, contains text related to a 'frequency to wavelength calculator' and a URL pointing to a redirector, suggesting a lure to entice users to click malicious links. The presence of numerous PDF links further indicates a link farm strategy.

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=frequency+to+wavelength+calculator In PDF document text
    • http://gasiz.truedaring.ca/uploads/1/3/0/7/130776167/nonovitejexafirugid.pdfIn PDF document text
    • http://files.flex-sander.com/uploads/1/3/2/6/132682655/jelobujukipakolok.pdfIn PDF document text
    • http://files.patronus-security.com/uploads/1/3/1/6/131606789/xetagiwizasopasin.pdfIn PDF document text
    • http://files.themillercompany.net/uploads/1/3/1/0/131070173/7500719.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/1/0428/9835/8432/files/vukabisozudetilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4803/4716/files/soduxofozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2897/0647/files/435733172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32177526878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9202/6271/files/putobuwiwajimatidape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1975/4907/files/59692205016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8118/8003/files/sisak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3636/8296/files/lubulanojabotux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2048/3751/files/sisisex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4442/1282/files/fovevuvomuvusepoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8497/1173/files/63508158649.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 4

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_off000057d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57D3 5220 bytes
SHA-256: 13785c3b4082cbcc6455e6d79af318bafc412b6bd7fcae9361bbfda97147f3d9
font_01_sfnt_off000069b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B0 10248 bytes
SHA-256: a02f2960b4a6c56a4c9f0a8aab5235ea467dc26f1f413068d3c612534527ffb6

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