Malicious PDF — malware analysis report

Static analysis result for SHA-256 0535a39ff9db2250…

MALICIOUS

PDF

42.1 KB Created: 2020-08-06 02:54:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c233323b91313d492180c2ae79dcb191 SHA-1: 457805c1833ef056d4381e41a5d955d835f83e80 SHA-256: 0535a39ff9db22505b48af4fbe0c905fd59a2b73e725807763d7beec2141ab3b
194 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to a redirector service (ttraff.com). The redirector is then used to point to various PDF files hosted on Shopify and other domains, likely as part of an SEO link farm or phishing campaign. The ML classifier strongly indicated maliciousness, and the presence of numerous links to potentially malicious infrastructure supports this assessment.

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=materi+aritmatika+sosial+smp+pdf In PDF document text
    • http://files.peterandmichele.com/uploads/1/3/1/4/131408942/fudad.pdfIn PDF document text
    • http://files.summitlakecommunity.org/uploads/1/3/1/4/131438114/zuteje-segadutizafi-sububo.pdfIn PDF document text
    • http://files.proorganizerlindsay.com/uploads/1/3/0/8/130874328/4020664.pdfIn PDF document text
    • http://files.cometsbaton.com/uploads/1/3/2/6/132681164/xifuvonaretamodegaja.pdfIn PDF document text
    • http://files.dreamsupercars.net/uploads/1/3/0/9/130969340/df063e9fd89d.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/1/0431/2937/2832/files/69171842817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6830/1212/files/hotel_standard_operating_procedures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9166/5830/files/86699176957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7029/1096/files/47597541262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8501/1869/files/4825551936.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6577/6030/files/banatop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0989/1742/files/mugasibet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7935/1976/files/pelixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/jukububokem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/dewofeloluwopoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2755/2661/files/22192263966.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4215/8245/files/siwuxobotilufuluvodevari.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_off00006677.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6677 5256 bytes
SHA-256: 207bb818ab0718967f3623bd442c46ac53056e1182ba7b82f761a8046efabee7
font_01_sfnt_off0000784f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x784F 10248 bytes
SHA-256: 703d47b192f2affcc98294a3ca40306d0bdfea6f06bbcd7a53714d5f6594bc8e

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