MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a mass of external links, including one pointing to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text that suggests it is a 'formal letter layout template', likely a lure to encourage clicks on the embedded malicious link. The presence of numerous PDF links, many hosted on Shopify, indicates a potential SEO-based distribution strategy. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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=formal+letter+layout+template In PDF document text
- http://files.rochesterjiujitsu.com/uploads/1/3/1/3/131398134/vovin_zexojajakivewo.pdfIn PDF document text
- http://dedug.ambergolob.com/uploads/1/3/0/7/130739811/videjipeviripe.pdfIn PDF document text
- http://tufup.mysideofthecouch.com/uploads/1/3/0/8/130814161/2ced0a0e30822c.pdfIn PDF document text
- http://files.handhinsurance.net/uploads/1/3/1/4/131438539/mefezipopeke.pdfIn PDF document text
- http://files.ncmilitaryoutreach.com/uploads/1/3/0/7/130775953/4647936.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/1/0432/4913/9880/files/speaking_activities_esl_beginner.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6272/1688/files/arguably_by_christopher_hitchens.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2833/3219/files/xisurusu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7446/7478/files/vulosodoti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3487/7850/files/website_design_templates_sketch.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4040/7701/files/55559789909.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4419/2935/files/74138605306.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3767/1080/files/xapazugomafupan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7689/5398/files/gw2_firebrand_pve_build.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4817/9611/files/samefuwar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7049/6672/files/kagimaxevonidegopa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7899/1513/files/anatomia_de_la_piel_y_anexos.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.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006c71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C71 | 4844 bytes |
SHA-256: 3752371520c7d6f86c6e06c94dd29eddf8f4ccf973a869ffd582e5647da2d53f |
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font_01_sfnt_off00007cd7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CD7 | 9928 bytes |
SHA-256: 6f53598f0449b53c4790cfa4fc556dbaaeeae570224631ebe1d155c844f10f64 |
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