Malicious PDF — malware analysis report

Static analysis result for SHA-256 1810089225c72af0…

MALICIOUS

PDF

56.6 KB Created: 2020-08-12 02:39:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fa3e4555efd6bc6080c276d7fbb1873b SHA-1: 65488bdb93ec6137e616b5dc1b7181f6bd2685e6 SHA-256: 1810089225c72af0578fa81072e0b01a08e5a9b9c6289d8b0b4144726d98d0ea
194 Risk Score

Malware Insights

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

This PDF file contains numerous links designed to create a link farm, likely for SEO manipulation or to distribute malicious content. The primary malicious link, 'https://ttraff.com/pify?keyword=el+paraiso+perdido+poema+pdf', is identified as a redirector to malicious infrastructure. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs further supports this assessment.

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=el+paraiso+perdido+poema+pdf In PDF document text
    • http://files.siallabuzz.com/uploads/1/3/0/7/130776200/3307298.pdfIn PDF document text
    • http://ferope.lawrencerainesmd.com/uploads/1/3/2/6/132681670/7427578.pdfIn PDF document text
    • http://files.ycducky.com/uploads/1/3/0/9/130968958/56eee7d67.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/1/0433/0687/7080/files/mufowotipopugisafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6295/1062/files/kirabalalav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/7309/8143/files/what_is_a_google_id.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1052/2277/files/26067810824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mafimovudowejiner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/agriculture_books_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8720/7327/files/73919106747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8029/5334/files/xodirokolorabowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/68513135127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9041/8591/files/85195174776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4804/9572/files/introduction_to_blockchain_programming.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8977/2187/files/30959571193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51220099535.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_off00009f37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F37 5144 bytes
SHA-256: f34ca79f5d8b2e909e29b79b3ea3485ac9d5b3e820eaeac21ccf3782a2c1c8b9
font_01_sfnt_off0000b099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB099 11260 bytes
SHA-256: a1963d92cf0676bc9541ab691a3e136fc6e95f8bbd23186a51d8f281304e9451

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