Malicious PDF — malware analysis report

Static analysis result for SHA-256 b259665178752ab3…

MALICIOUS

PDF

48.1 KB Created: 2020-08-23 21:41:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b81d9af5cd7183d52787957033d6b199 SHA-1: bc769f2ca0fda7e93e094540d9e920397e554877 SHA-256: b259665178752ab30f1bd61df5271e231ec138b825e34c308a25589c02e9ab2d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF document exhibits characteristics of a link farm, containing numerous external links, many of which point to Shopify-hosted PDFs. One critical heuristic identified a link to a known malicious redirector infrastructure at 'ttraff.com'. This suggests the document's primary purpose is to lure users into clicking these links, potentially leading to malicious content or further compromise. No scripts were extracted from this sample.

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=biosafety+and+bioethics+in+biotechnology+pdf In PDF document text
    • http://files.affordabletowingnearme.com/uploads/1/3/1/3/131383297/pazijinageganoz_lerotudajoginoz_suxevoxiw.pdfIn PDF document text
    • http://files.johnpusateri.com/uploads/1/3/1/4/131454317/wonepavegogo-pojenidebe-vunuxajetakomu.pdfIn PDF document text
    • http://files.pst4y.org/uploads/1/3/0/7/130738814/piwagitasesesuwatug.pdfIn PDF document text
    • http://files.thomas.rentals/uploads/1/3/0/8/130814288/3254635.pdfIn PDF document text
    • http://files.neoyookai.com/uploads/1/3/0/9/130969191/wolewexovomefexusu.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/1/0434/5420/2018/files/farmakologi_antasida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6200/0806/files/xixerizolizuromog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lozafawofife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6102/6719/files/jibakimemudepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9424/9377/files/add_text_to_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/58100483954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/piwenepigixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7208/6423/files/xizonuletaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5085/2762/files/11758288836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94430640368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/italiano_insurance_tampa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9513/7187/files/compress_files.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_off00007b88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B88 5612 bytes
SHA-256: e41d4662c7b15f51a0de0eeebb3c75983c090298d101a4b989afff2cbf76a6c5
font_01_sfnt_off00008ea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EA3 11084 bytes
SHA-256: b2e7cfe8c2295349f1bf75fb6be90f0e0629296c89dcb6ec184b53ab70cfe0a7

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