Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d0ce0bfc09f6e38…

MALICIOUS

PDF

45.7 KB Created: 2020-08-24 02:41:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4784eb666042dd9d0952c2c1317b991c SHA-1: 7678085b96301597450f5fbbae15db659abec2eb SHA-256: 5d0ce0bfc09f6e389b16645a1d6187f8dd726f4cc23604b42b2c902e62e4bcad
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to a redirector service. The primary redirector URL is associated with malicious activity, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains URLs that are likely part of a link farm designed to attract traffic and potentially lead users to 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=akutagawa+ryunosuke+kappa+pdf In PDF document text
    • http://files.mtzionfire.org/uploads/1/3/1/4/131437657/tudenanagad-futodi.pdfIn PDF document text
    • http://files.danielholihan.com/uploads/1/3/0/7/130740412/2854.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/1/0431/0623/8613/files/37940328372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/wevopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1916/6105/files/lobiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1628/1512/files/78729259133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9776/0668/files/tower_of_heaven_secrets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3122/2677/files/java_exception_handling_example_programs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7327/4018/files/felazozaminas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3287/1074/files/zoology_dictionary_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8180/9566/files/turuviwejimutujobajudedom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6263/1326/files/pitidoput.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_off000068e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E0 3312 bytes
SHA-256: 7d974ec8cd0d11511fb9172596e23c592ef1307a8247c702422066c24320ba56
font_01_sfnt_off000074ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74AC 5424 bytes
SHA-256: cc4d89d40ac7ec07583d29a4f3a7d59e82c9091f64d08febd7da861714957fd9
font_02_sfnt_off00008749.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8749 10088 bytes
SHA-256: 493d7c0c5dcf9a9c020afbb0ec2040b2c3b483dfa6d19f753989fd510e9ae796

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