Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d4b665393fe061b…

MALICIOUS

PDF

44.9 KB Created: 2020-08-06 16:18:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d8b39ea7d61ce1c7e0405509381abfbc SHA-1: c9bb801bdeced4b45284e122fc0048bb5228e206 SHA-256: 6d4b665393fe061b99a11c9f75acc70db38500d25228c0af442e7b526a22dcf1
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate downloads but redirect to a malicious domain, ttraff.com. This infrastructure is known for hosting malicious content and is likely used to distribute further malware or conduct phishing campaigns. The ML classifier strongly indicated maliciousness, and the PDF structure itself is indicative of a link farm used for SEO poisoning to lure victims.

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=handbook+of+virtue+ethics+in+business+and+management+pdf In PDF document text
    • http://files.dessertdesignsbygisela.com/uploads/1/3/0/8/130814254/1057351.pdfIn PDF document text
    • http://files.mytechoasis.com/uploads/1/3/0/7/130739072/2d7875.pdfIn PDF document text
    • http://files.heart2heartfs.org/uploads/1/3/1/3/131379183/zinovozopuso.pdfIn PDF document text
    • http://files.monmatgrp.com/uploads/1/3/0/8/130814234/9160538.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/1/0432/7161/8723/files/vefiletipelolonufag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2393/2311/files/intermediate_english_reading_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8286/6083/files/vekijolixinazulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4421/6730/files/convert_wav_to_flac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5558/6203/files/61916309987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1583/0695/files/present_value_annuity_factor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78683638278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5880/7455/files/68539470472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4903/3627/files/jazalapepefix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0844/8920/files/xubutajupobetisisifukovep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3152/6561/files/dagofajekisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2353/8088/files/42985097650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57790570823.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_off0000699f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x699F 5760 bytes
SHA-256: 09443443418fd01887eab4d7e4599494c7cc3a54c09cdb8debf94081f047a166
font_01_sfnt_off00007d19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D19 13264 bytes
SHA-256: bcab4c0f8e7ce29a327ae9438fa0a866d0581b2b7d449bd0209f72e82d2ca473

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