Malicious PDF — malware analysis report

Static analysis result for SHA-256 167c7da510ccfa0e…

MALICIOUS

PDF

43.4 KB Created: 2020-08-17 05:30:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6bca5794d7b747be1531e5c8fb2d6208 SHA-1: 3ee19635314b196e830f7627d6f157190e7f44a8 SHA-256: 167c7da510ccfa0e0b290363deb183a6a14992f88d412b253e9ea66963c3e34a
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic identifying a redirector link to 'ttraff.com' which is known malicious infrastructure. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to download further content. The presence of numerous Shopify links, some flagged as benign and others unknown, indicates a link farm strategy to obscure the malicious destination. No scripts were extracted, but the PDF structure and embedded links strongly suggest a phishing or malware distribution attempt.

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=assembl%25C3%25A9e+nationale+rdc+pdf In PDF document text
    • http://files.troyfoundation.org/uploads/1/3/1/6/131606128/5546008.pdfIn PDF document text
    • http://files.fundep.org/uploads/1/3/0/8/130874278/sotulen.pdfIn PDF document text
    • http://files.bolingbroke-writers.org/uploads/1/3/0/9/130969663/wetaxola.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tizerosotusalasebix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4273/4237/files/vumeluni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6418/0390/files/how_to_make_a_favicon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1307/8168/files/volalej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8578/3455/files/gejipifakovudususemel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9728/2977/files/gofuruwopigunazoxetiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/6704472676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5544/8213/files/leech_lake_fishing_report_mn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90841244024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7640/9751/files/wedding_march_sheet_music.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005918.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5918 5360 bytes
SHA-256: bf62e31b22d1eb5c49ca5f985d6e471fd7a046fb4f94a7f3066e4209d5032b62
font_01_sfnt_off00006ae1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE1 12056 bytes
SHA-256: cbb5fc3688f2e1d18175f8044aee9250c096f0ff847ddad6a783da3fcbdb2636
font_02_sfnt_off000090f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90F5 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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