Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb58f00967289d7b…

MALICIOUS

PDF

48.5 KB Created: 2020-08-06 18:29:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 19ae80d527786e84555b4d5cf7ef5ab1 SHA-1: b8a8475693a115f0b5bfa5ab8db66bec4278dcf3 SHA-256: eb58f00967289d7b4f5e9812bb610dd14d46a65dfda0d5d2cd6597b4f87ba5d0
194 Risk Score

Malware Insights

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

The PDF contains numerous links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggered this heuristic. The sample also exhibits characteristics of a link farm, with many embedded URLs pointing to external resources, some of which are hosted on Shopify. The primary malicious intent appears to be redirecting users to potentially harmful sites.

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=metabolic+diet+meal+plan+pdf In PDF document text
    • http://files.heikesfamilyfarm.com/uploads/1/3/0/7/130738960/7111973.pdfIn PDF document text
    • http://files.quielclass.com/uploads/1/3/0/8/130874316/kaxepokakupujofuji.pdfIn PDF document text
    • http://tazimojo.vasanthivanniasingham.com/uploads/1/3/0/8/130814297/7038913.pdfIn PDF document text
    • http://files.yanka-online.com/uploads/1/3/2/8/132814791/vilos-wonuzisenejawe.pdfIn PDF document text
    • http://files.keepcalmandreadon.org/uploads/1/3/1/4/131409794/b1a39f3a4887269.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/1/0437/8315/9957/files/generate_random_id_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71895612735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/fegojokux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6599/7472/files/mijikezum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1988/7001/files/waveso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/9963/8184/files/libro_after_2_gratis_completo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6268/0984/files/bivaniforowakomutarubes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1848/4888/files/52295016785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/81167844317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/noxelozanofar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0258/4480/files/zukigotapitaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0787/7017/files/simon_ielts_essay_topic.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A1E 5172 bytes
SHA-256: 54e70b02c6deac5f45f99651d6f0b7895aa758841b28a2ed3305b01d95945671
font_01_sfnt_off00007bb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB1 10676 bytes
SHA-256: 01be81340b112a75c1e2d3976d50d5be54069631d1c8c1c03c74d7415db4ac9c
font_02_sfnt_off0000a010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA010 16060 bytes
SHA-256: 2173a1880e9f774f759393e7d0d28dda91d04d8a3eae6bea41b822770b343b90