Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1f4465bd533739f…

MALICIOUS

PDF

40.6 KB Created: 2020-08-02 03:43:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1295ccdccd70421ad7a481f92da2421c SHA-1: ee94e60ef23c711542e76ea00e8d020812858c73 SHA-256: b1f4465bd533739f231de658b53845fbd9f4ae35f5d616096fe30df5a01f2cdb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the attack. The document also hosts a large number of links to other PDFs on Shopify domains, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly indicated maliciousness, and the presence of a redirector URL confirms a malicious intent to lead the user to a harmful site.

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=female+version+of+earl In PDF document text
    • http://files.catchamomentphotos.com/uploads/1/3/0/7/130740017/2257668.pdfIn PDF document text
    • http://files.asacottrelldar.org/uploads/1/3/1/8/131856042/8980422.pdfIn PDF document text
    • http://files.united-townfinancial.com/uploads/1/3/1/6/131606727/davejeselugebaxakefo.pdfIn PDF document text
    • http://files.batteryconservancy.org/uploads/1/3/1/3/131383478/99f1f779fb2cb1.pdfIn PDF document text
    • http://files.toymigos.com/uploads/1/3/1/8/131856381/61b8c1a.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/1/0434/3057/6285/files/49865517375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1906/7815/files/97778860363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/10327368138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8852/7013/files/baregijawufokagigeji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4620/7642/files/49783768959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3429/4937/files/73964290788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8993/5002/files/sejularisenitife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6818/6015/files/51867320818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6056/0025/files/nelagitarusubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3605/5454/files/50134144604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0292/1111/files/kurogedexasupoj.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_off00006313.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6313 4928 bytes
SHA-256: 1fd8026f73fb41ca7a355c167c66814997100afccdee57aa13b17a1902aa7bc2
font_01_sfnt_off000073be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73BE 9892 bytes
SHA-256: d501edd5a2523f4a67c3d9a6e4dfbc05455031f8efa0b7655a8f3bcd13ca3a07

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