MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to external PDF files hosted on Shopify and other domains, forming a link farm. One of the primary links directs to a known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=audiometry+graph+template
- http://files.westervilletherapy.com/uploads/1/3/2/7/132741709/xinasepegoxesinijus.pdf
- http://files.eatfatboiz.com/uploads/1/3/1/0/131070378/484aa6774d3.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/9246/7109/files/kaguvumoxetuvanabiwejisi.pdf
- https://cdn.shopify.com/s/files/1/0435/8638/8123/files/medical_assistant_study_guide.pdf
- https://cdn.shopify.com/s/files/1/0431/8927/2725/files/88206993188.pdf
- https://cdn.shopify.com/s/files/1/0429/9345/1159/files/behaviourism_theory_of_learning.pdf
- https://cdn.shopify.com/s/files/1/0434/7399/3890/files/45883807808.pdf
- https://cdn.shopify.com/s/files/1/0433/9479/3630/files/xorujodogediwirukimuta.pdf
- https://cdn.shopify.com/s/files/1/0430/3542/6970/files/44565156613.pdf
- https://cdn.shopify.com/s/files/1/0434/8297/2326/files/74880615463.pdf
- https://cdn.shopify.com/s/files/1/0433/3282/9342/files/vudakajomazegadamekaz.pdf
- https://cdn.shopify.com/s/files/1/0429/9427/0371/files/challenging_lateral_thinking_puzzles.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000074ad.bine463bd90ba703eab570547264472a27064c54bbad70d2896c06fa0a52326bef4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74AD | 5284 bytes |
font_01_sfnt_off00008687.bin00b7bc0990d10a0962f22787cf0656a01b5aaa09a00f5feaddacc65ff575037e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8687 | 11316 bytes |
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