Malicious PDF — malware analysis report

Static analysis result for SHA-256 36576e24e25479e1…

MALICIOUS

PDF

40.2 KB Created: 2020-08-18 19:09:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d808f93c13322d0819cc5ae85d8a52c8 SHA-1: 1234f6dcc604cc1fc8213848c90e9a3df819de30 SHA-256: 36576e24e25479e1a495f545c8ab65badec8a2da37643bb5c7ce6f7572604269
202 Risk Score

Malware Insights

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

The PDF file contains a lure related to a 'Bteup date sheet 2019 back paper' and embeds multiple links. One critical heuristic indicates a malicious redirector link to 'ttraff.com', which is likely used to funnel users to further malicious content. Another heuristic identifies a PDF link farm hosted on Shopify, suggesting an attempt to obscure the final destination or distribute malicious files. The presence of a visual download button further supports a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bteup+date+sheet+2019+back+paper In PDF document text
    • http://files.revolutionyouth.ca/uploads/1/3/0/8/130813409/316222e.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/1/0436/6503/1321/files/one_for_all_remote_codes_urc_3021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/sifovedibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7831/1318/files/essentials_of_neuropsychiatry_and_behavioral_neurosciences.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3804/0487/files/python_basic_coding.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1409/3986/files/something_anything_someone_anyone_somewhere_anywhere_exercise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7746/8327/files/58627911668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8807/7209/files/vorogosefeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9270/4408/files/14716721100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4254/4533/files/93821061622.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8986/0510/files/adjective_noun_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97098861098.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 1

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_off00005d2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D2D 5864 bytes
SHA-256: 796d57fce883fb3117e5f1328f95727a2da93eebce4382695301a246b159cfd4
font_01_sfnt_off00007112.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7112 10100 bytes
SHA-256: 39e1e1883067730629ba1d16efa29ead0452fd8540bef3a6f25ac606204ebc0c

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