Malicious PDF — malware analysis report

Static analysis result for SHA-256 f629fd41fd665184…

MALICIOUS

PDF

47.9 KB Created: 2020-08-11 02:02:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fe9585f4dfaa97265bf1758212483741 SHA-1: b08ec3047e32c382e07365264de541cd8ad29bce SHA-256: f629fd41fd6651846c156cc49cd4f78bbdbbdac0abef0de4e4154e42b4223581
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, many of which point to domains associated with link farms and redirectors. One critical heuristic identified a link to a known malicious redirector at 'ttraff.com'. The document body, though partially corrupted, also contains this URL, suggesting the primary intent is to redirect the user to malicious content. The presence of many benign-looking Shopify links alongside the malicious ones is a common tactic to obscure the malicious intent.

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.com/pify?keyword=seismic+design+and+analysis+of+underground+structures+pdf In PDF document text
    • http://varajesep.roof-ings.com/uploads/1/3/1/3/131383664/661ca8.pdfIn PDF document text
    • http://files.susankennedy.org/uploads/1/3/1/4/131455903/3fa6813aa412c.pdfIn PDF document text
    • http://files.oneceed.com/uploads/1/3/1/3/131382797/munexivu-gajej-wegizomu.pdfIn PDF document text
    • http://kemuz.lifebiblestudies.com/uploads/1/3/0/8/130873810/banitexatigerololodi.pdfIn PDF document text
    • http://files.designsbydinius.com/uploads/1/3/0/8/130814397/sodedavuz_vapevaxewitokov_fexufatores_tevodijapaw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1147/3571/files/ssc_stenographer_mock_test_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9354/7424/files/670694334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5453/0709/files/12655462867.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8232/3870/files/blockchain_technology_books_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9948/8410/files/nesazutixusuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2757/0596/files/5095552589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zurutadodusabexefiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4234/6907/files/85535239181.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2388/4711/files/84397725681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9864/5404/files/84_country_code.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E43 5564 bytes
SHA-256: 78e32aa27b39aba1eb4eb6c9d84c60394b44f97a325567608711ba6cf25a5e83
font_01_sfnt_off0000810d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x810D 10260 bytes
SHA-256: cc28d4c9d6e28d88339fd675372e73a9b32d2599f2fd94d2776810c34c5fe8cc
font_02_sfnt_off0000a41d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA41D 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2