Malicious PDF — malware analysis report

Static analysis result for SHA-256 64f18042ebf28252…

MALICIOUS

PDF

59.9 KB Created: 2020-07-31 19:54:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6a2a97dcc9f6ae484474eb1aab8ff28 SHA-1: 02c363a2379815e4ffb08036d05a872d0065a55d SHA-256: 64f18042ebf282524bf0993b1bb6cb92332eae23c1dba9edd1cf43649b8036d5
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. The ML classifier strongly indicates maliciousness, and the presence of multiple SEO-themed links suggests an attempt to disguise 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=swgemu+village+guide In PDF document text
    • http://files.lincolnleapers.com/uploads/1/3/1/4/131406659/b2e55ce219561eb.pdfIn PDF document text
    • http://files.toddhirsch.com/uploads/1/3/1/3/131384721/7047937.pdfIn PDF document text
    • http://files.brima.bg/uploads/1/3/0/8/130813364/4872254.pdfIn PDF document text
    • http://files.rubysresidences.com/uploads/1/3/0/7/130775831/tewoda.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/1/0433/4718/1718/files/gukowikebibefasatagexelob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0051/1138/files/27684282403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8252/1503/files/gurelidelet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/kumiwevafulag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3633/4490/files/86201573878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2005/0855/files/74369186516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kenawuvotijogajutimev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/62637526759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5430/0312/files/12984033055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7935/1976/files/tatokobuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3547/6636/files/39263283463.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 6

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_off0000ad7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD7F 5124 bytes
SHA-256: 9233dd579a2216c6b564d20c96c1f70e893fc86b71cc9167762c826dd74f5b0f
font_01_sfnt_off0000bef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEF6 10388 bytes
SHA-256: 4376f0a92d97c9b8beecb601ddc6b5025ddc1058a0f86ca8e4dec94c96d11122

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