Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebd1859c3ed3b8c2…

MALICIOUS

PDF

50.3 KB Created: 2020-08-12 05:19:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3471a1adc2b7af22b4daccc44dc2e5bc SHA-1: 3b875ed9b98497d7f6c9580ff1798a801cedad63 SHA-256: ebd1859c3ed3b8c2ff00707f8c5379bb154ddce8a44f6f1a70815eeeae817a18
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external link farm, with many links pointing to Shopify domains and one critical link to a known malicious redirector at `ttraff.cc`. The document body, though heavily obfuscated, contains the same redirector URL. This indicates the primary purpose is to redirect users to malicious content, likely for phishing or malware delivery.

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.cc/pify?keyword=learning+curve+theory+pdf In PDF document text
    • http://files.wildaboutspain.com/uploads/1/3/1/8/131871956/9620279.pdfIn PDF document text
    • http://files.foregolf.org/uploads/1/3/0/9/130969306/pobowadixa.pdfIn PDF document text
    • http://files.shopframesplates.com/uploads/1/3/2/6/132682723/sukeb_gagor_biwupevowak.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/1/0431/7013/6218/files/20283879409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8547/7541/files/40225695603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8951/7973/files/55423093995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/77363931764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/genitivo_sajon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/suwimabuvosata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4472/4133/files/vosevunubebelimowofone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4945/0661/files/82660134034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4222/6854/files/metere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4357/0343/files/70556149855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5271/9515/files/nenododoraxakujexunowepol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6567/9776/files/zozarikugezubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0785/9096/files/40192346803.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 3

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_off00008806.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8806 5312 bytes
SHA-256: c087e89cc78cdebe31ae0f5efeb0f3f0829d2b4d793c7f9ac07ab0d6663e5167
font_01_sfnt_off00009a1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A1F 10040 bytes
SHA-256: 5c8d0a34a68734748def1f1494ae6c51d26a33b24712a1bff1d3f2afdd0bbaa2

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