Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fd385ca6fef076c…

MALICIOUS

PDF

43.8 KB Created: 2020-08-07 03:40:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dc9f0a5d9c8f10d01552c6efecae22a5 SHA-1: 0262f3642ce50f4dcd676bf7789b3057ec5a8aea SHA-256: 5fd385ca6fef076c3f9928ea0f18f9a42dad8b98c6c4adea55d21dcb129d712b
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though obfuscated, contains a URL that is also present in the malicious redirector. This suggests the PDF is designed to trick users into clicking malicious links, likely for phishing or to download further malware. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=buffer+capacity+calculation+pdf In PDF document text
    • http://files.thefoxdenbridgeport.com/uploads/1/3/0/7/130739318/4582826.pdfIn PDF document text
    • http://files.seanhuttonmusic.com/uploads/1/3/2/6/132682655/3cda6b7f4f1a1a1.pdfIn PDF document text
    • http://files.lipsmonsherri.com/uploads/1/3/0/8/130814076/kavokagok.pdfIn PDF document text
    • http://files.tenstringedlyre.com/uploads/1/3/1/6/131606175/tofaxanebixofap.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/1/0429/9676/0730/files/ravewatoperubutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4795/2294/files/23225458182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0994/9341/files/22347200292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nanejixiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9816/8725/files/xatufinike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8044/1238/files/16108065658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5856/9120/files/51802728581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5122/0124/files/fipijorikalexip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8197/3416/files/26113579718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8865/0135/files/fallout_4_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2503/1590/files/33764142774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0159/3507/files/60854849199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/lefetudifaxorulamati.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_off00006cbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBB 5124 bytes
SHA-256: a3a807361a608fc2f137de3b59a0f344f8df626c3056b01e09b930936de68b57
font_01_sfnt_off00007e48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E48 10628 bytes
SHA-256: e0670db939ba6f946ffdb363bc1e5967fe0f6190e2f26520ad07fd84fbc114f8

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