Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ac66ad24303a90e…

MALICIOUS

PDF

34.4 KB Created: 2020-08-06 13:00:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4748617fa3562f83c5a857b7c972ef01 SHA-1: 3d243e163c86f8c4e253e2ea81e97c8029133ba3 SHA-256: 9ac66ad24303a90e9274864f119a9729bdf49e4c1db74da34ec62ab4181a960b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wb?keyword=the%20frantic%20assembly%20book%20of%20devising%20theatre%20pdf'. It also exhibits a PDF link farm heuristic, with numerous embedded links, many pointing to Shopify domains. The document body, though heavily obfuscated, contains the same redirector URL and several other PDF links, suggesting a lure to external content. No scripts were extracted from this sample.

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/wb?keyword=the%20frantic%20assembly%20book%20of%20devising%20theatre%20pdf In PDF document text
    • http://lakejive.alexisortizart.com/uploads/1/3/1/3/131380485/c76caf7c3.pdfIn PDF document text
    • http://files.millpro.org/uploads/1/3/0/7/130776065/cba3e3e.pdfIn PDF document text
    • http://files.healthiestsickguy.com/uploads/1/3/0/9/130969904/vubigorawobinanex.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/1/0431/0820/4704/files/viropinufogutov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lalosukiwafigoledexefes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/libuzab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5670/1348/files/91700266219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1403/7397/files/89465193272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0568/9499/files/77597327490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/kefatarejilekerol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1555/2672/files/18703797694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4868/0089/files/morettin_estatstica_bsica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3061/8020/files/fnaf_gmod_map.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
🗂 Part of campaign: alexisortizart.com 4 samples

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_off00004748.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4748 5884 bytes
SHA-256: df85880241b921816b0d84d65ed2bffbea0a286a1b2d40889d09f6a5908947d3
font_01_sfnt_off00005b34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B34 9352 bytes
SHA-256: e0e8cbf8a83f21733513ab707c821cd77e8996db1c93f19d367fafdcb8f2ecdb

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