Malicious PDF — malware analysis report

Static analysis result for SHA-256 37ecc5e97365d426…

MALICIOUS

PDF

48.5 KB Created: 2020-07-28 11:36:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5692ecb19ae5ded266104c44abf025af SHA-1: a08a7788f8e9a27ebd694d63aca93b462a30c5af SHA-256: 37ecc5e97365d426635a3e21f9d8ebd0fc06e789f3fcb50c1e59136a73224eef
194 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding numerous external links, 30 of which are generated SEO links. One of these links, 'https://ttraff.com/pify?keyword=cimatron+e14+sp1', directs to known malicious redirector infrastructure. The document body appears to be largely obfuscated or corrupted, preventing a deeper analysis of its specific content or intent beyond the malicious link.

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=cimatron+e14+sp1 In PDF document text
    • http://files.highsierrachemicals.com/uploads/1/3/2/6/132681294/fukojofu_sekoxiwi_pedatiwi.pdfIn PDF document text
    • http://files.fresnonutritionsolutions.com/uploads/1/3/2/6/132683111/9806049.pdfIn PDF document text
    • http://files.milwaukeecharteradvocates.org/uploads/1/3/1/4/131413718/4926669.pdfIn PDF document text
    • http://files.thevictualbar.com/uploads/1/3/1/6/131637562/90d129638cf3c.pdfIn PDF document text
    • http://files.harvestfieldbaptist.org/uploads/1/3/1/4/131437418/e80f94bbc1e63f.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/1/0437/4154/4600/files/newonujinejuxilogix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80789229335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/xonozanuvowonalubole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3942/2626/files/88577505689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7301/9808/files/pimujulogogurowujikave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/ramisevefora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23631451812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8615/9767/files/60263788448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7833/6166/files/tibur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fuwemosuwizukuxitakalav.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_off0000777e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x777E 4884 bytes
SHA-256: 7febe2f1f44dfd3c04c75e3ed248523ffc2839c36b2ffde6e48f9ddd47e38455
font_01_sfnt_off000087ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87FF 14396 bytes
SHA-256: bb0b6cec9eadbdd4d213241d6712eda3098b92b3f1bd5cc91f8243003b0998ca

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