Malicious PDF — malware analysis report

Static analysis result for SHA-256 31b1bb2c8f223070…

MALICIOUS

PDF

42.0 KB Created: 2020-08-14 01:59:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 811e7e28684e703b294b5acc70356271 SHA-1: e9a3d4c40d6475711eed91279edd9c2cf2cb2e91 SHA-256: 31b1bb2c8f223070b9bc0134b9bbd160182afa458d70e09256d96218e71069cb
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.cc/pify?keyword=paint+shop+pro+9+full', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the intent is to redirect users to malicious content under the guise of offering software.

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=paint+shop+pro+9+full In PDF document text
    • http://denefikid.peggymdavis.com/uploads/1/3/1/3/131380107/mimeraro.pdfIn PDF document text
    • http://files.pandlexpressinc.com/uploads/1/3/2/3/132302814/88e12f8da95.pdfIn PDF document text
    • http://files.judilane.com/uploads/1/3/0/7/130739864/lolenirez-domozuw-luparawoniso.pdfIn PDF document text
    • http://nefinaju.ilandaguesthouse.co.za/uploads/1/3/1/4/131453870/5a56215bb01ce.pdfIn PDF document text
    • http://files.elginparkathletics.com/uploads/1/3/1/4/131406413/xikudenaw.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/1/0433/1431/5422/files/muvodofibewonofavex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/76597185819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4619/9711/files/jimez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0165/1105/files/fizajesube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/puneson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5269/3654/files/77798648041.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5216/3481/files/62571342123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3876/1379/files/wallpaper_for_whatsapp_profile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4491/2802/files/miguxotosevodizek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9394/0629/files/algebra_2_lecture_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5824/9376/files/12471785664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4396/0485/files/rukilokukepojiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6119/0559/files/biserazupogidisorow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0449/3987/files/gafigesazufobexo.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_off00006685.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6685 5148 bytes
SHA-256: 98731f0d77a7a5a5ebf976312b2ee790dd37baa19cc3e8f76fe7dce7cf86f1c1
font_01_sfnt_off000077f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77F9 10260 bytes
SHA-256: 14b528c678f974258bfc5c9ced730b9c95108d721e5cecbd6e2f24102a32254e