Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e9bbe0f715a41c7…

MALICIOUS

PDF

41.8 KB Created: 2020-08-07 05:23:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d7ee4877c88e2e11c957ae4b5c501959 SHA-1: 7534aeb548b42cdc8f507f07ef2fed6ece001b15 SHA-256: 3e9bbe0f715a41c768fb9ee27f42c51784b01e6236b682c5930ac3336379a696
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'gearing ratio analysis pdf' and the malicious URL, suggesting a lure to a malicious site. The ML classifier also strongly indicated maliciousness.

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/wb?keyword=gearing%20ratio%20analysis%20pdf In PDF document text
    • http://files.luxesneakerboutique.com/uploads/1/3/0/7/130775853/gizuluveroji-rofinowaxuk-jejis-mokuzigavabi.pdfIn PDF document text
    • http://zepokuzef.jenniferbelphotography.com/uploads/1/3/2/6/132681670/xulajeku.pdfIn PDF document text
    • http://files.nhbdupage.com/uploads/1/3/0/8/130873893/4042896.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/1/0428/9835/8432/files/kemisavixazesunomezixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1430/6466/files/the_f_formula_marni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9617/7816/files/dmv_va_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2073/0020/files/bibinigizusud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8297/2326/files/21535987979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7956/5465/files/mobozufijoburo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4383/1458/files/mokugezoruxesosagenasomas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0210/9856/files/bewuroj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5489/0149/files/vizamomupar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3066/5637/files/22374320812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0681/1560/files/gibevoxipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6844/8152/files/88627402433.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 3

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_off00005b14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B14 5340 bytes
SHA-256: 656594e1a321592e9b08560def1afec79caa3dc6dabe5704caaecb8b32635694
font_01_sfnt_off00006d5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D5D 14220 bytes
SHA-256: b5593bbc0623657bdb2faaea14c9613ae0d6c8b80069e8a069f2f755c971d94b

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