Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ac23b5ab829e5ad…

MALICIOUS

PDF

42.7 KB Created: 2020-07-31 16:39:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a0f68ebd8966f26edc860e64d8b15364 SHA-1: d18c9f1b3f76e11c05219211fdaf36b4d19df22d SHA-256: 7ac23b5ab829e5ad8616dedd5cb581199d820c5b28a2b4629be3ff42bceda575
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm and a specific redirector link to 'ttraff.cc', indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the same redirector URL and multiple Shopify links, suggesting a lure for users to download further malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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=npm+most+popular In PDF document text
    • http://files.mahaloyallart.com/uploads/1/3/1/4/131437949/tuvomaga_xogerojodut_rexebowinet_dajaxekejobuf.pdfIn PDF document text
    • http://files.scambiocucina.com/uploads/1/3/2/7/132740423/2293443.pdfIn PDF document text
    • http://files.teslottawa.com/uploads/1/3/1/8/131871648/c2ad1.pdfIn PDF document text
    • http://files.cassandraroseclarke.com/uploads/1/3/1/6/131606756/534c70d020.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/1/0428/9835/8432/files/tovetutokukike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7753/3856/files/teduresitexonopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0709/8529/files/bizarixagunabekam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5063/0296/files/somubuwoxuzinaxifolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6001/7814/files/gepape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2725/0848/files/gadujukolen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9097/6673/files/tusukud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5080/2081/files/69947295171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gidawibozifuniji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1139/0115/files/famexeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7808/0925/files/gururefixuzaxopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9846/4661/files/16219586750.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 4

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_off0000697d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x697D 4936 bytes
SHA-256: 899005b8eb8d3a955f6d19c2651692d6a8a9b38fb838516f727a1da54b204357
font_01_sfnt_off00007a2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2C 10636 bytes
SHA-256: ca02c5b2d764a404e617646d658b6daa2d19cacc62b56859c7cef42f8a559369

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