Malicious PDF — malware analysis report

Static analysis result for SHA-256 06a4e794feee4b4d…

MALICIOUS

PDF

59.6 KB Created: 2020-08-03 06:06:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d5eab827f79e4b1c0cbd5a29bcc9080 SHA-1: 48b9e1234aacd4a714a2b97357d5a8f24c09128f SHA-256: 06a4e794feee4b4d9a3ad219f759610381f7b4440dc70ba185bd05b70fe8e752
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as a link farm for SEO purposes, with a primary redirector identified as malicious. The document body, though heavily obfuscated, contains a URL that points to a known malicious redirector, suggesting an attempt to lead the user to a phishing or malware distribution 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.com/pify?keyword=kalpakjian+manufacturing+engineering+and+technology+pdf In PDF document text
    • http://files.jimmarshart.com/uploads/1/3/1/4/131452922/4695845.pdfIn PDF document text
    • http://files.teachershopllc.com/uploads/1/3/1/8/131871704/zenoju-rifaxoteti.pdfIn PDF document text
    • http://files.nicoleandersonconsulting.com/uploads/1/3/1/4/131437330/fagivese-nuxivizelava-wajetoposuluz-dolosexi.pdfIn PDF document text
    • http://files.thamesvalleyquiltersguild.com/uploads/1/3/2/6/132681517/woretep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0445/9633/0660/files/ozzy_osbourne_road_to_nowhere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8812/4830/files/ramij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5063/0296/files/turezasomixodipumavobal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8253/7365/files/install_dmg_on_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9799/0055/files/82318941214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1587610690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7097/9237/files/10848233902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/82127534182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/basugogigarerebid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7930/1288/files/an_enthusiastic_gilled_blob_is_on_screen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9102/4280/files/36902281063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3276/3801/files/66091167655.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009c2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C2B 5484 bytes
SHA-256: 62c90a4668747974b639d30171b24451602e0b60a2eb770f1580f6a10ab54f7a
font_01_sfnt_off0000aea9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEA9 10540 bytes
SHA-256: b70cc9a9dac04262bc1f98d20546d85eb61c7647bb00eb5b2a85f56a121f1aa9
font_02_sfnt_off0000d28c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD28C 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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