Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfba0170a87fb9c0…

MALICIOUS

PDF

42.7 KB Created: 2020-08-05 17:07:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b9e7a2fde94b470cd4738c8151525a13 SHA-1: fe9f985af272435a90623afc2ce8545dfafa0944 SHA-256: dfba0170a87fb9c0ee0d77c64d785e035b6aa9be07ab3c655cd375847aa9e00b
194 Risk Score

Malware Insights

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

The PDF contains numerous links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/pify?keyword=asme+b16.+5+flange+pdf'. The document body, though heavily obfuscated, contains references to this URL and other Shopify-hosted PDFs, suggesting a link farm or redirection scheme. 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.com/pify?keyword=asme+b16.+5+flange+pdf In PDF document text
    • http://files.bahrainaviators.com/uploads/1/3/2/6/132695915/dolatizom.pdfIn PDF document text
    • http://siluj.neumainnovations.com/uploads/1/3/1/0/131070786/noworinaweberax.pdfIn PDF document text
    • http://files.precisionpitching.net/uploads/1/3/1/3/131379110/bd97a6586c.pdfIn PDF document text
    • http://files.worldofsecupp.com/uploads/1/3/2/6/132683251/sixufaz.pdfIn PDF document text
    • http://files.christianchildrensentertainment.com/uploads/1/3/0/7/130740458/992bf10a.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/1/0431/3497/6157/files/73779956002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6635/8934/files/14081375473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9352/4634/files/software_quality_assurance_basics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/19339296178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6763/7917/files/lojutebizedebiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5802/7928/files/amenaza_de_parto_pretermino_elsevier.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9020/5090/files/94518303965.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0546/7035/files/63138175462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1165/3277/files/best_astrology_books_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7840/2723/files/18567117962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8561/0654/files/vimisotorebaja.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_off00006189.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6189 5756 bytes
SHA-256: 8476a5d9c957787445ea728f7a8cd68f9e5b0c723743d10bd698480beceab843
font_01_sfnt_off00007524.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7524 12664 bytes
SHA-256: 7c55a059fe8de1a649ce4da6a0f2750c3f855ceac3e49a063c019826a5a4f5c7

Open this report in the interactive analyzer, or submit your own file for analysis.