Malicious PDF — malware analysis report

Static analysis result for SHA-256 f660a9958188bffe…

MALICIOUS

PDF

42.5 KB Created: 2020-08-22 02:20:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b64aac740aae4f6ebcbb2debe0d136ee SHA-1: 35b4675bddf65ae374cc480507aea009579a408d SHA-256: f660a9958188bffec645384f125d5cd48fe9d74858a275634c655fb190d178ed
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.com. This indicates a phishing or scam attempt designed to lead users to malicious content. The ML classifier strongly supports this assessment.

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=boss+and+me++free In PDF document text
    • http://feboku.solvibrationstravel.com/uploads/1/3/2/6/132682883/rulis.pdfIn PDF document text
    • http://simum.eurekamakingadifference.com/uploads/1/3/0/7/130775432/kalitu.pdfIn PDF document text
    • http://files.causeareaction.com/uploads/1/3/1/4/131438819/3552879.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/1/0430/0475/6121/files/57118972368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5800/4117/files/67199872089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/387442316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6428/5598/files/59071604255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2465/4241/files/54963802525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45366335679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0119/0299/files/52838473552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3422/9398/files/91851528898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5340/8675/files/gowukozuvop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/9344/1957/files/circle_theorems_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4162/6011/files/log_and_antilog_table_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6285/2773/files/dadakuwonigofidavafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kovogosiwe.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: causeareaction.com 4 samples

Related samples 3

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_off000069b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B3 5072 bytes
SHA-256: 088af589ee62701155b3c35a6549109a594320d0e3315eeeed81b08cff58d28c
font_01_sfnt_off00007ad5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD5 10272 bytes
SHA-256: 248e20c519a66f16b0aaf214329bf8ebd0617d22673aa120b89daf77ab68ddf2

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