Malicious PDF — malware analysis report

Static analysis result for SHA-256 b80c0a95be726c83…

MALICIOUS

PDF

42.7 KB Created: 2020-08-16 18:28:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ab8d345e4fb9424ad9283323f42bbe8a SHA-1: 61a3b7127492e725dc88ab424716fd1d11c15bc1 SHA-256: b80c0a95be726c8334bf08cc05016eea22d3a3509af99d67f54e27e59b467279
234 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to benign Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This suggests a link farm or redirection tactic to obscure the final malicious destination. The ML classifier strongly flagged this PDF as malicious, supporting the redirector link finding. The document body text, though garbled, contains the title 'Edible leaves of the tropics pdf' and the URL 'https://ttraff.com/pify?keyword=edible+leaves+of+the+tropics+pdf', indicating the lure content and the initial malicious redirect. No scripts were extracted from this sample.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=edible+leaves+of+the+tropics+pdf In PDF document text
    • http://files.pierceandbelle.com/uploads/1/3/0/7/130775558/tusevejat.pdfIn PDF document text
    • http://files.somalibantucitizengroupoforegon.org/uploads/1/3/0/7/130775905/96acff.pdfIn PDF document text
    • http://dixojek.brookebauerboutique.com/uploads/1/3/1/6/131606289/4502308.pdfIn PDF document text
    • http://files.historyobscura.com/uploads/1/3/0/7/130776861/xupaxerapakoz.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/1/0431/7259/3832/files/liwobexafula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0803/1893/files/basic_java_interview_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/gum_arabic_uses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8946/1402/files/23144967716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8865/files/41049783562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2022/2627/files/bawumejejuxixiguluz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1264/4251/files/calaveritas_literarias_infantiles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/xuxofixudagipipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5352/2850/files/73056760166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6442/5622/files/52601144263.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000673f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x673F 5400 bytes
SHA-256: bdedcc4154470a851ca1db802461ae63c92cbcd9254681ab5d46a4066f9f52cd
font_01_sfnt_off00007999.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7999 10736 bytes
SHA-256: b6bcaa8fda5c4f75da09e150bc6f7850095ea9495fe203e0bdca1e72b98ef34a