Malicious PDF — malware analysis report

Static analysis result for SHA-256 0933df279560f9e6…

MALICIOUS

PDF

33.6 KB Created: 2020-08-28 03:48:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 63f81493a338f8f6c225721ce14d3345 SHA-1: 28c31f5d4888eb74a936820a7228389d5bcde8ba SHA-256: 0933df279560f9e67f69e287961de7b800466c3d6942b9c02f769cd334bc10f8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically a redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains text suggesting a lure related to a 'Dkny dress size guide'. The presence of numerous external links, many pointing to Shopify, suggests an attempt to create a link farm or SEO spam, likely to obscure the malicious redirector. The ML classifier strongly flagged this PDF as malicious.

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=dkny+dress+size+guide In PDF document text
    • http://files.operationimagination.com/uploads/1/3/0/8/130874257/limopaku.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/1/0432/7551/8107/files/accurate_english_pronunciation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9080/2856/files/action_research_methodology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/4176/6814/files/sinodejidow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1935/3767/files/urllib2_vs_urllib3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5339/0743/files/accounting_audit_report_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6756/2391/files/83316142333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2104/0792/files/25776969841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemisavixazesunomezixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/66433032586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2896/3747/files/sokiregoposaletefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7201/8845/files/game_beach_buggy_racing_hack.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 1

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_off000046ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46EE 4964 bytes
SHA-256: bff529452730c0962595ea56960bd5a30f92cc53c9a856e822de7c1adc63c67e
font_01_sfnt_off000057f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57F6 9932 bytes
SHA-256: aafa662bf43e9d9fe463eda0204d28230dba468a493c6881bff228cb56f8828f

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