Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ec25598245cc680…

MALICIOUS

PDF

38.0 KB Created: 2020-08-23 22:44:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5eed634bd8d5a03edc6c13d5a76faf0d SHA-1: da71a3b6503c9988a50579220ff66bcc3d6c9a6d SHA-256: 6ec25598245cc680d0dc4b1e101f319b8b0e5d408a78c2ab9d63646d4a1e4451
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service (ttraff.cc) known for malicious activity. The document body, though heavily obfuscated, contains the same redirector URL and what appear to be benign Shopify links, suggesting a link farm or SEO poisoning tactic to lure victims. The ML classifier strongly indicates maliciousness.

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=dickensheet+campground+idaho In PDF document text
    • http://lizalal.rachelhenson.com/uploads/1/3/1/4/131453960/wimupibixozotet.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/1/0431/0876/1764/files/machinist_ffxiv_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tapowizilefaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5800/files/notetimir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5216/3482/files/najugev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2395/6125/files/74968759140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2808/5912/files/dotowawiwelufebulamosaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zotogobujadafozafinuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6304/0408/files/tovefuvejujiviz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8765/0211/files/wusaletupixawopemif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0728/7197/files/65704985118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8576/6564/files/859105282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1761/6034/files/elementary_real_analysis.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_off0000552a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x552A 5520 bytes
SHA-256: 5c1663db012e60ce956f2ff94a94b5605ba106d8648de24ef8fccaf8aa5df2f3
font_01_sfnt_off000067bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67BB 10424 bytes
SHA-256: 9216548112f29573aa81fed6527ef1677eb505ad81b44e79fb2d61c823031491

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