Malicious PDF — malware analysis report

Static analysis result for SHA-256 5761e2e15cfc9b8d…

MALICIOUS

PDF

49.2 KB Created: 2020-08-13 22:04:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c1421086f8ebafd3b4d5e24f12a2e479 SHA-1: 3af29388c5fd8970874d1e130a99830a2b1aac53 SHA-256: 5761e2e15cfc9b8d64dfb80eae3b0056ef2b3f865b36906f29bbb29a89cc077d
194 Risk Score

Malware Insights

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

This PDF contains a large number of embedded links, many of which point to benign Shopify domains, but one critical link redirects to a known malicious infrastructure at 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL, suggesting the primary intent is to redirect the user to this malicious site. The ML classifier strongly supports the malicious verdict.

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=kinetic+vs+potential+energy+worksheet+middle+school In PDF document text
    • http://files.lilcongames.com/uploads/1/3/1/0/131070688/b0efdab16205b.pdfIn PDF document text
    • http://wuziso.humecompost.com.au/uploads/1/3/1/4/131452922/4206123.pdfIn PDF document text
    • http://files.classicfinancialsolutions.com/uploads/1/3/1/0/131070751/4133942.pdfIn PDF document text
    • http://files.thecurrencymatrix.com/uploads/1/3/1/4/131406507/7090686.pdfIn PDF document text
    • http://files.juliafeildenracing.com/uploads/1/3/0/7/130740026/63034cb7d.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/1/0431/0925/3286/files/84845426799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5778/9605/files/77687422737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9906/2426/files/kotaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/magej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6820/3942/files/23173002038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5122/0120/files/bosinusaragozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8897/7815/files/warehouse_assistant_job_description.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9739/1261/files/5740524116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2601/4620/files/gojoxubulujuwamusidel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3787/6639/files/bandit_algorithms_for_website_optimization_developing_deploying_and_debugging.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7663/2214/files/52909319566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0196/0854/files/porujaxeliwuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5195/6894/files/15580870594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4460/9943/files/59607475110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9085/3541/files/49686917664.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B67 5776 bytes
SHA-256: f80f60186816be1153ff23135f968d2e48cf45a98a312bad4b30c529137cbcf4
font_01_sfnt_off00008ef4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EF4 11428 bytes
SHA-256: 62db46d269882d1bad0528ec053610edbf40a03bcb09196766061d388a9e994f