MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lead users to further malicious content. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for users seeking 'clinical guidelines for asthma exacerbation'. The ML classifier strongly supports the malicious nature of this PDF.
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=clinical+guidelines+for+asthma+exacerbation
- http://files.fabuliciousteaching.com/uploads/1/3/0/9/130969080/nisuzojikukij.pdf
- http://kixatik.libertyhighschoolorchestra.com/uploads/1/3/0/9/130969060/digobufalipab_wisirolewiwumo.pdf
- http://lesebi.koolamundo.com/uploads/1/3/2/8/132814232/4fe13.pdf
- http://xakapot.childrenfirst-inc.org/uploads/1/3/1/8/131872295/3093685.pdf
- http://files.makwawamalawi.com/uploads/1/3/2/7/132740860/zuder.pdf
- https://cdn.shopify.com/s/files/1/0431/6823/5682/files/45676178795.pdf
- https://cdn.shopify.com/s/files/1/0430/9545/7946/files/67375816323.pdf
- https://cdn.shopify.com/s/files/1/0433/8673/2707/files/83636742428.pdf
- https://cdn.shopify.com/s/files/1/0433/3302/5960/files/pdf_splitter_mac_free.pdf
- https://cdn.shopify.com/s/files/1/0431/1787/1255/files/fudusajelet.pdf
- https://cdn.shopify.com/s/files/1/0429/7683/7785/files/sagitafudowelagab.pdf
- https://cdn.shopify.com/s/files/1/0428/4124/3814/files/.pdf
- https://cdn.shopify.com/s/files/1/0429/9541/7237/files/62355392878.pdf
- https://cdn.shopify.com/s/files/1/0433/3748/2405/files/derisunonasubelovokipuku.pdf
- https://cdn.shopify.com/s/files/1/0435/2881/4746/files/98343186328.pdf
- https://cdn.shopify.com/s/files/1/0438/9847/0552/files/nenirulamalizerulowanugef.pdf
- https://cdn.shopify.com/s/files/1/0438/3001/8210/files/demexutosije.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006817.bin1e721151ae7253c260c45bad76e27fb734851ae8881de4dca0e6a40fc18d3cda |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6817 | 5548 bytes |
font_01_sfnt_off00007abf.bin620df57cae407cd62423d13151e5a76254235e5741dff8b53fc8219bea4e7421 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7ABF | 11960 bytes |
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