Malicious PDF — malware analysis report

Static analysis result for SHA-256 42080eb4f44607c5…

MALICIOUS

PDF

43.4 KB Created: 2020-08-09 21:41:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 54cfeb51778e1d44f3c3d9249481703a SHA-1: 08e03cb798f555cf1854c80f5e6e409fde65aea9 SHA-256: 42080eb4f44607c59d46e9e08adfc9a828c4669137e67406c51245401d181c41
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body contains text related to a financial PDF download, likely a lure to encourage clicks on the malicious links. 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.cc/pify?keyword=corporate+finance+theory+and+practice+aswath+damodaran+pdf+download In PDF document text
    • http://keluzujow.galwayartacademy.com/uploads/1/3/2/8/132815123/9863949.pdfIn PDF document text
    • http://files.liffordhealthcentre.com/uploads/1/3/0/8/130874284/5922e3fbe.pdfIn PDF document text
    • http://files.wanderingwildandfree.com/uploads/1/3/1/1/131164537/xatinepapelawo_xetemisewonit_zamozuw_nidolomug.pdfIn PDF document text
    • http://files.runforthefallennh.com/uploads/1/3/1/6/131606789/mabiwoxeregofajuxew.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/1/0435/5850/2563/files/fexegisel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8094/0710/files/sublime_text_3_free_license.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5122/0120/files/causes_of_poverty_in_rural_areas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/annual_report_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4456/9242/files/xanuwuginirifirise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5565/0718/files/moxepusanelivizikukadowoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2411/4076/files/d_d_4e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9119/8112/files/89934876727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4060/4313/files/list_of_adjectives_a_to_z.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7250/4483/files/56466318791.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3546/7669/files/guwokeduvudewebosenuwet.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_off00006ad5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD5 5492 bytes
SHA-256: 34bb365c1446d410f4371afee23a085911f75a7d7d14dd6a4a79c5af73c95064
font_01_sfnt_off00007d6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D6F 10052 bytes
SHA-256: a350eb1825ef6ed1aaafb80cd80448993d1acef67aa76f5a6b2bc90b7b5e3d5c

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