MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to a known malicious infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure related to 'flexfit caps size guide'. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many of which are hosted on Shopify but point to potentially malicious content. The ML_NYX_PDF_MALICIOUS classifier strongly supports the malicious verdict.
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.cc/pify?keyword=flexfit+caps+size+guide
- http://files.facundomenendez.com/uploads/1/3/1/4/131453005/bogepilivefewetos.pdf
- http://zibubi.edandclaudiaroadtrip.com/uploads/1/3/1/3/131383791/9160984.pdf
- http://files.heathermcclarriephotography.com/uploads/1/3/2/7/132740281/xavumolida.pdf
- https://cdn.shopify.com/s/files/1/0430/7078/3645/files/abide_with_me_guitar_chords.pdf
- https://cdn.shopify.com/s/files/1/0435/7334/6463/files/wadiveru.pdf
- https://cdn.shopify.com/s/files/1/0431/8534/0580/files/fixug.pdf
- https://cdn.shopify.com/s/files/1/0429/5802/8959/files/97711064570.pdf
- https://cdn.shopify.com/s/files/1/0434/6085/3920/files/torin_black_jack.pdf
- https://cdn.shopify.com/s/files/1/0428/0441/2583/files/accounting_system_implementation_plan_template.pdf
- https://cdn.shopify.com/s/files/1/0437/6795/5610/files/bridget_jones_the_edge_of_reason_online.pdf
- https://cdn.shopify.com/s/files/1/0428/9809/6284/files/whatsapp_app_by_play_store.pdf
- https://cdn.shopify.com/s/files/1/0443/0177/9100/files/jusedekolopow.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_off00006448.bind7a72d81ecfa368fbb6d7a9f979a897a07a9c1e38092a4d02bf1f8bc8998717a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6448 | 5300 bytes |
font_01_sfnt_off00007672.binf5b0cfced33c101262d17b16f2e5ca98e08b69731e7aaecb47005af0ffae8df4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7672 | 10156 bytes |
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