Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cf293313595b0fc…

MALICIOUS

PDF

50.3 KB Created: 2020-08-10 20:28:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8047bc3b92c52bec5fb61f2994b5d88 SHA-1: 26d2b58c03e89ea0865a85a326f0aa5a4e282e7b SHA-256: 6cf293313595b0fc4129e2b35d8d97450486f74e261fcdb68d90f6396e58da6b
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service, indicating a link farm or SEO manipulation tactic. The primary malicious URL identified is a redirector that likely leads to a phishing or malware download site. The document body, though heavily obfuscated, contains the malicious URL and references to book titles, suggesting a lure to entice clicks.

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.ru/pify?keyword=viaje+alrededor+de+la+luna+julio+verne+pdf In PDF document text
    • http://files.harrydwyerphotography.com/uploads/1/3/0/8/130873708/lonogejojoniganado.pdfIn PDF document text
    • http://files.roguecosmetique.shop/uploads/1/3/2/7/132741194/divowaje.pdfIn PDF document text
    • http://files.paulpsychicmedium.com/uploads/1/3/0/7/130739315/dff96.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/1/0431/6063/3504/files/20164377480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4042/3592/files/table_e_multiplication.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6491/8165/files/fegitatujorudovefoxeler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5404/7137/files/1265996123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6119/0554/files/ayia_napa_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9433/4870/files/how_to_cite_file_from_website.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4061/3286/files/vitezopinorolirodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/47086176682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8151/5673/files/33374560870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/11783771814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1175/1579/files/bulonunazuxeros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/ratenebulubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/4956/8667/files/atoms_and_molecules_class_9_ncert_notes.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 2

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_off000078af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78AF 4760 bytes
SHA-256: a0a690a65b4c20e8443f0ca685fbad3d7b8d46df8506eeed9a69b7b6e709cc00
font_01_sfnt_off000088ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88ED 10820 bytes
SHA-256: 4c2ef93e602c16c55ed063ef38bb1b3c982273304977fce306d7cc51b3885e44
font_02_sfnt_off0000ac5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC5C 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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