Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac1ac24d7a615b5a…

MALICIOUS

PDF

66.6 KB Created: 2020-08-25 15:56:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bc30a2e23a874779f5eb46db2c58a0b4 SHA-1: e96e7f0de6f0c8fdaafa0f24912ee18ce1f566e3 SHA-256: ac1ac24d7a615b5a3ee1c9e241eb1c226206117303423d2c3d023a96f675c358
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains text related to an 'injury report' and the malicious URL, suggesting a lure. The presence of a large number of embedded links, many pointing to Shopify domains, indicates a link farm strategy, likely to improve SEO for malicious 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/pify?keyword=ellsbury+injury+report In PDF document text
    • http://posux.ironstormcorp.com/uploads/1/3/1/6/131606156/nagurimolazipu-fadox-guzobiga.pdfIn PDF document text
    • http://files.acupunctureworkswonders.com/uploads/1/3/1/4/131437249/malavozitapuvala.pdfIn PDF document text
    • http://gaxowasip.pvenw.org/uploads/1/3/1/6/131636974/1698444.pdfIn PDF document text
    • http://files.leadershipcentersw.org/uploads/1/3/2/6/132681783/26e5ba1e83c570.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/1/0433/1231/6584/files/69323309473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/44480709639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4041/4615/files/23649162275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0792/4635/files/dd_form_93.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4618/3847/files/bexava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9534/6590/files/electric_bicycle_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9010/7815/files/69205667503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0866/3457/files/23114662859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7356/7894/files/html_link_to_page.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_off0000c633.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC633 4876 bytes
SHA-256: c9723fdaa9c4508670051ff6f4757a1780ce8e6f01f3b8f586bf40797144492a
font_01_sfnt_off0000d6dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6DD 11344 bytes
SHA-256: 4fd6541981b521624b7a54354b8a1133020ec697512fa734c90b768a73df295b

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