Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cee26dbb2797bc5…

MALICIOUS

PDF

41.3 KB Created: 2020-08-23 20:49:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dc3986a6414fdf6b62abebba4c2f2916 SHA-1: f475759b6446c0faeaf31e67314862aaabf96879 SHA-256: 6cee26dbb2797bc53eec0ef219ac75784c3ac315af412702bda1bd134b403017
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many of which point to a redirector service (ttraff.cc) that is known to host malicious content. The document body, though heavily obfuscated, contains references to the redirector URL and benign-looking PDF files hosted on Shopify, suggesting a lure for users to download seemingly legitimate documents. The presence of a malicious redirector link and the ML classifier's high confidence score indicate a high likelihood of this document being used for phishing or malware distribution.

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=adobe+air+android+app In PDF document text
    • http://files.snohomishvalleyicerink.com/uploads/1/3/1/4/131454090/1893275.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/1/0438/4092/9957/files/mathematics_a_discrete_introduction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8086/6197/files/47442010444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8575/6568/files/kuzakeroderevomefik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9948/0473/files/feralufawakiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5333/3145/files/examiner_s_report_acca_f3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0704/1959/files/miwuvirudunoweni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4323/2661/files/sql_interview_questions_for_experience.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9462/8769/files/color_street_catalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6013/3031/files/the_expanse_cibola_burn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4027/6642/files/uscg_boatswain_s_mate_study_guides.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4646/9793/files/fewebibaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/bezutaludetukeri.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 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_off0000638c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x638C 4872 bytes
SHA-256: eec7bc00b9a7f5aabc5318a4386e79219e440d203124cd61bf7dad3602e9d22c
font_01_sfnt_off00007426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7426 10740 bytes
SHA-256: de8e6dfb464801d822288d17a26b7aa0bd69019198671545e409ab4bdbe9209c

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