Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bc368e059855f32…

MALICIOUS

PDF

39.5 KB Created: 2020-08-19 08:23:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c04f18252336031f8c3b21832e30c0c7 SHA-1: 94b93edbfc50cff67af94592e26205e63ff8fd35 SHA-256: 1bc368e059855f32035e584e2a8943a945eaa87e29c36f6a6dee9030c898a334
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=affidavit+of+attesting+witness+form+oregon'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though partially corrupted, contains the same redirector URL and appears to be a lure related to legal forms. The ML classifier strongly flagged this PDF as malicious.

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=affidavit+of+attesting+witness+form+oregon In PDF document text
    • http://files.brendachrystie.com/uploads/1/3/2/7/132741476/zeraje-telozusivexogut.pdfIn PDF document text
    • http://files.leahbealdesign.com/uploads/1/3/1/4/131407918/5286187.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/1/0431/7646/0445/files/kabitivibopewodawokorenij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2729/9478/files/interview_questions_on_c_c_and_java_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2986/2312/files/mubuzepisexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7367/0037/files/tips_for_job_interview.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1668/1629/files/5515044819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3916/1500/files/quality_assurance_management_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2763/5096/files/mozijivejosirena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2076/0734/files/cisco_ise_2._2_vm_installation_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7193/0519/files/kewokalafobovikanedugelup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0028/2783/files/vineland_3_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3191/0821/files/adobe_acrobat_reader_full_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1560/1304/files/92176260864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0243/6518/files/access_consciousness_clearings.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 5

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_off00005c91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C91 5336 bytes
SHA-256: 457dd7dcbdd409ff436e7f92be5856ba19a87796db761e5d0372a575bacf0c69
font_01_sfnt_off00006eb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB6 10112 bytes
SHA-256: ca393f43ff59d82f2af6fca4f9a96783276d22fa1d68abb37f19770c5ec1688b

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