Malicious PDF — malware analysis report

Static analysis result for SHA-256 c71337a378f42e97…

MALICIOUS

PDF

43.6 KB Created: 2020-08-16 02:18:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae9adb6dcdf7f648c494a0e069963a79 SHA-1: 6b4410ab0fd67187a9aebe75a42d98e5f31eb853 SHA-256: c71337a378f42e974bb716ba54d305edd96f55d267d32eb3f15091053085cf47
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which are hosted on Shopify. One of these links, 'https://ttraff.com/wb?keyword=impact%20test%20izod%20and%20charpy%20pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting it is the primary lure. The presence of numerous links and the malicious redirector indicates a phishing or redirection attempt to malicious infrastructure.

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/wb?keyword=impact%20test%20izod%20and%20charpy%20pdf In PDF document text
    • http://xiboxuki.birthingdivine.com/uploads/1/3/1/3/131383544/nurak.pdfIn PDF document text
    • http://files.kurtisestes.com/uploads/1/3/2/8/132814958/rudutomiwew.pdfIn PDF document text
    • http://files.movalhome.net/uploads/1/3/1/3/131398244/lasikasiwonu_kezaxog_surilim_famarefora.pdfIn PDF document text
    • http://files.lavenderlanemi.com/uploads/1/3/2/6/132696263/302973682aa.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/1/0430/0426/4602/files/cancer_de_mama_gpc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4535/5674/files/limitations_of_first_law_of_thermodynamics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9308/2783/files/jorakipatud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2571/0756/files/bonjour_happiness_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6083/6005/files/dilakidojizejexiginibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9113/2567/files/viseropiwunobozebid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9504/0924/files/tekegenodapoxizur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0459/0242/files/jigifotebilijuxavuruzedat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/9661/6615/files/lightning_thief_graphic_novel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94393320092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1468/3815/files/crsu_date_sheet_b._ed_2nd_year.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1195/6126/files/pulesimeguvavifedofi.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_off00006cd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD9 5452 bytes
SHA-256: 5dbd7572b8b671e9b7e00ac8077c4a96e3fb2e8458b421876da20fd7a1f29e00
font_01_sfnt_off00007f36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F36 10068 bytes
SHA-256: 66744fa65a5b615e4c15d42cfe1635175e3efd58cfc420d11b82a028c1588962

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