Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b7cded55e356303…

MALICIOUS

PDF

43.4 KB Created: 2020-08-12 17:19:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bc1b5c53caf8fda4bdfed584cdaea461 SHA-1: d4c0eca1dd0ff5ab44f022d4f8c46a285f5eabc0 SHA-256: 9b7cded55e356303e26e324cad1adc712e8b7ca3340873f3038f9d19f17f57e5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link that points to 'ttraff.cc', a known malicious domain. Additionally, it features a link farm with numerous PDFs hosted on Shopify, with one specific link also identified as a redirector. The document body, though heavily obfuscated, contains the same malicious URL. The presence of multiple PDF link farm heuristics and a critical redirector link firing strongly suggests a phishing or redirection attack.

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/wb?keyword=textiles%20kadolph%20pdf In PDF document text
    • http://megog.pinckneymusic.com/uploads/1/3/1/6/131636725/eda2ea5a1d.pdfIn PDF document text
    • http://files.arrivecollegeconsulting.com/uploads/1/3/2/6/132695491/nezewuzizexoma_suligeja_rorar.pdfIn PDF document text
    • http://fawoguzeb.chartingwithkatie.com/uploads/1/3/1/4/131407197/7926301.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/1/0439/3975/8235/files/dofaxanovifaloguzusoxuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3951/4006/files/askep_aneurisma_aorta_abdominalis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1947/4856/files/vuzebidutepodaduk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1250/5256/files/43026989547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3458/0891/files/wevogesidilulamupes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/14204532370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/az_103_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6978/3720/files/documentos_del_magisterio_de_la_iglesia_catolica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0593/3730/files/gudonutilapegowop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8262/6710/files/61796115212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/golds_gym_450_treadmill.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_off00006788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6788 5112 bytes
SHA-256: f38539433cba5d0de5ef1c28050e04e44af9592c148a013325317fd7fb35a2e1
font_01_sfnt_off000078ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78EC 12568 bytes
SHA-256: d6ac123e71d60948aeba66bc868c95f373f3f2fa3cb282515915d4a8e14e6e1b

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