Malicious PDF — malware analysis report

Static analysis result for SHA-256 887b93ce18ab30fb…

MALICIOUS

PDF

44.7 KB Created: 2020-08-11 23:19:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a907c0f8ab1f8b91e967e62dd323a2c5 SHA-1: fc7f23cd86ae27bc54472da0416b461126b25604 SHA-256: 887b93ce18ab30fb2f4acd9e0f6c2e707084340e34fd7e91ec9c1146e0949346
194 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body and heuristics suggest a lure related to file conversion, likely a phishing attempt to drive users to malicious sites. The presence of a link farm and a redirector indicates a coordinated effort to distribute malicious content.

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/pify?keyword=convert+pdf+to+word+on+mac+using+preview In PDF document text
    • http://files.taffycorbettdesign.com/uploads/1/3/1/4/131406049/nuzawujelodamewexini.pdfIn PDF document text
    • http://files.shop22.shop/uploads/1/3/1/1/131164479/6836054.pdfIn PDF document text
    • http://files.michellemcdanielportfolio.com/uploads/1/3/1/4/131407901/ea8788279f.pdfIn PDF document text
    • http://files.philipcleaning.com/uploads/1/3/1/4/131453401/8b5fa0ce924c.pdfIn PDF document text
    • http://files.shellygiggey.com/uploads/1/3/0/7/130776592/9045740.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/1/0434/4525/6352/files/boxepaselu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0485/3406/files/wikazebudumotupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/biomedical_model_of_health_strengths_and_weaknesses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sutapazuvonovojikujabera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6564/7012/files/84520790137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16494210232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/83583068491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3506/5510/files/ascii_code_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1673/2320/files/37002527651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pobilimej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2741/4696/files/warlock_pre_bis.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006fad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAD 5500 bytes
SHA-256: e217803968564ce53bb1a31b77a9cd1b7c2193370c1a11db6bd0c3000eadb200
font_01_sfnt_off00008265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8265 10364 bytes
SHA-256: 7b3fffbba64280851c3e46143bc0dd93ae7a01a5f8e9c9a12c1ba74c2339d54d

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