Malicious PDF — malware analysis report

Static analysis result for SHA-256 0401ebbc4b37bf8f…

MALICIOUS

PDF

55.8 KB Created: 2020-07-29 13:06:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6501e6d2927555cb6f6f883ec21d7166 SHA-1: 49145343f7f9048b812058f10e6ef15dc568e7ca SHA-256: 0401ebbc4b37bf8fdf43d08161ad59e2f6cb715d7b6dffa549f9e8d251b54d87
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating it is a malicious redirector, specifically designed to lead users to potentially harmful content via a link farm. The primary redirector URL is `https://ttraff.cc/pify?keyword=notes+bass+guitar+fretboard+pdf`, which is used in conjunction with links to numerous PDFs hosted on Shopify. This suggests a phishing or scam attempt leveraging SEO tactics to distribute malicious links.

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=notes+bass+guitar+fretboard+pdf In PDF document text
    • http://files.scphimu.com/uploads/1/3/1/4/131453146/sujimomewusewop.pdfIn PDF document text
    • http://files.camera1.ca/uploads/1/3/1/3/131380413/pizixejawij.pdfIn PDF document text
    • http://files.ddraonline.com/uploads/1/3/0/7/130739120/pexuxudeze-pegopisofip.pdfIn PDF document text
    • http://files.vetwoundlibrary.com/uploads/1/3/1/8/131871479/mipabibajab.pdfIn PDF document text
    • http://files.freshbakerydelivers.com/uploads/1/3/1/4/131407051/fitizikoju_pukipe.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/1/0431/0705/7825/files/2684411753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7826/3718/files/50682835047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4276/5976/files/rigixexabapetirotidafov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61047377128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0918/5688/files/77911025789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/woburorofinuxup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9410/5509/files/28660824255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1778/0896/files/kixutokiwalebuneb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4248/5910/files/58026680621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7052/0470/files/ditaluxurubinip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4942/6845/files/fabazojefef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2834/8056/files/xarikipibejuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8090/8949/files/nifamekapovavukepaxemome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0569/6409/files/xapawagonerivisusi.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000889d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x889D 5064 bytes
SHA-256: f9a8377eff4a85c11b9564e548273b14838fc6b99024b555a40c7aee5370e23d
font_01_sfnt_off000099ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99EF 10032 bytes
SHA-256: f1212516729f72f342b2437547a3791e47b0f6baf473953e5ab9560832af1a43
font_02_sfnt_off0000bc79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC79 16120 bytes
SHA-256: 46d9b83afd797048ab251ddfc9ca9a6db44f3280724c231f6a80a061bcc6fc12