MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded links, many of which point to domains associated with link farms or redirectors. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=cdc+full+form+in+education'. The document body contains garbled text but also includes the same URLs found in the heuristics, suggesting a deliberate attempt to obscure the malicious nature of the links. 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=cdc+full+form+in+education In PDF document text
- http://sexun.elvesandmorewestmi.org/uploads/1/3/2/6/132681399/1890323.pdfIn PDF document text
- http://files.sagehousebathnbody.com/uploads/1/3/0/9/130970005/5200238.pdfIn PDF document text
- http://files.carlystrong.com/uploads/1/3/1/4/131437669/7601785.pdfIn PDF document text
- http://files.clonmelchildcare.com/uploads/1/3/0/9/130969690/aae4852efb.pdfIn PDF document text
- http://files.cjsclimbandplay.com/uploads/1/3/0/7/130739910/9084940.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/1/0430/0609/9605/files/pikawilisawo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8380/9439/files/gobeguwotupaj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9982/4032/files/50098851224.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8156/3298/files/wagepipozekedufejagu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6375/4404/files/aradhana_mp4_video_songs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1049/7434/files/deep_purple_child_in_time_guitar_tab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4506/0762/files/dezoxetazipaj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4899/2930/files/97964790006.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8577/4502/files/tutorial_in_introductory_physics_solutions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5561/9994/files/electronically_sign_a_adobe_acrobat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7243/8947/files/dexojejatofura.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8806/0320/files/78992978383.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6845/6086/files/nokigakiwurewuzesakanine.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_off0000764f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x764F | 4896 bytes |
SHA-256: 64d8ffad8482ad8079801dea50e7e9cac566531aeb4d4cc12063585f72c98e30 |
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font_01_sfnt_off000086d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86D1 | 10376 bytes |
SHA-256: 99686aa82eceb3c3a0bc69ac6a777df76e758199e87f30703c0c4b29b9c67e4e |
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