Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a719aa60b05a8f6…

MALICIOUS

PDF

46.6 KB Created: 2020-07-29 21:16:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 955d61ff3dc623b6065d246fc814dc58 SHA-1: 6f5ea19f1a64b315a9ec6dfb71b35cd6706122b2 SHA-256: 0a719aa60b05a8f67568e60994468609c3f4e3302a5f5a6531ace20dc79f1635
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document contains numerous links, many of which point to a redirector service that is known to host malicious content. The document body and heuristics suggest a lure for users to download or access files, potentially to bypass security scanning by requiring a password for an archive. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=adobe+split+and+merge+pdf+files In PDF document text
    • http://files.communiservenashville.org/uploads/1/3/1/6/131637313/1684186.pdfIn PDF document text
    • http://files.kcsaussies.com/uploads/1/3/1/6/131606035/4790224.pdfIn PDF document text
    • http://files.islandbeautyportland.com/uploads/1/3/0/9/130969243/522dd448b29a.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/1/0430/8212/1377/files/nunomuvosiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1811/7543/files/zabefevavudixatudizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1617/4243/files/48489726790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/19543720292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4247/9000/files/xinonodaxetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/97458593598.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3397/7255/files/vepumomav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dijev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8031/0174/files/31630404591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8543/6830/files/34504350665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7596/8928/files/46212619734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6659/7288/files/29067173774.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_off0000777a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x777A 5280 bytes
SHA-256: e3fef8650760293427091305515768cd9d14edfd04c1a7e5003be5ce1f519ae8
font_01_sfnt_off00008948.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8948 10464 bytes
SHA-256: fefedf26a70a296a603ee07df0906806e747798b7da8b44867e716e925e8659d

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