Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b98a7fb29e7522e…

MALICIOUS

PDF

54.2 KB Created: 2020-08-06 23:01:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 34112eb96c4ec36388ca68efe7b5af50 SHA-1: 55ad9c30eb81c91d2454f701591865fc3d4c7766 SHA-256: 9b98a7fb29e7522ec58a8410f2f30f645d1a53db748014494b30c3e0a994d1ce
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious by a machine learning classifier and contains a large number of embedded links. One of these links, 'https://ttraff.cc/pify?keyword=manual+roller+bending+machine+project+pdf', points to a known malicious redirector. The document body appears to be garbled but contains references to the URL, suggesting it's part of a link farm or SEO manipulation scheme designed to lure users to malicious content.

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=manual+roller+bending+machine+project+pdf In PDF document text
    • http://files.haralsoncountyhistory.com/uploads/1/3/2/3/132302913/4438840.pdfIn PDF document text
    • http://files.eventfullyourscharleston.com/uploads/1/3/2/7/132740595/7b3878.pdfIn PDF document text
    • http://lesavat.newenglandgoodlife.com/uploads/1/3/2/6/132682646/36fb294d55.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/1/0430/6114/9850/files/4916953847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3804/7384/files/38264812893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1868/8424/files/fununutaxejuwijesutufime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5252/3929/files/76651913707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8180/9558/files/gumez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2630/0575/files/60405954443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2136/8482/files/affichage_obligatoire_code_du_travail_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9623/5415/files/puvagetevupefipukagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3121/5774/files/16089231365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1740/4573/files/ribafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6405/6225/files/paginolisalaxajew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8110/5562/files/makelivefag.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_off00009689.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9689 5612 bytes
SHA-256: 06cd0f0eea27a9c8ea4c00a122e679842491bff4a58f65ee5de7e4e1fc12e83f
font_01_sfnt_off0000a986.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA986 9940 bytes
SHA-256: cd6b80ac3cae9266680d0546ea6a3dc6bcd66eb71580176f9b40c61f11b22d40