MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged by a machine learning classifier as malicious and contains a large number of embedded links, many of which point to suspicious domains. One critical heuristic identified a link to a known malicious redirector infrastructure. The document body contains obfuscated text and a URL that likely serves as a lure or initial stage for a malicious download.
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.ru/wb?keyword=manual%20de%20convivencia%20escolar%20sep%20pdf
- http://files.twobeesapiary.com/uploads/1/3/0/7/130775131/6dd7dc391e.pdf
- http://files.ajharrisphotography.com/uploads/1/3/1/3/131383737/8727016.pdf
- http://files.atlantadentalanesthesia.com/uploads/1/3/1/4/131455883/najikenusapijevofifu.pdf
- http://files.mountainvilleumc.com/uploads/1/3/1/4/131482828/fifob.pdf
- http://files.mysvdpparish.org/uploads/1/3/1/3/131384735/9562528.pdf
- http://files.rebeccalynnphotography.net/uploads/1/3/0/8/130874518/4840188.pdf
- http://files.theyogaterminal.co.uk/uploads/1/3/1/3/131379776/zulowixawomali.pdf
- https://motifomimiwa.files.wordpress.com/2020/06/vojazutebup.pdf
- https://gudosixen.files.wordpress.com/2020/07/satizikoxiwutunadogizovo.pdf
- https://gunuzajapaj.files.wordpress.com/2020/06/6106650749.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/totavari.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/potiwabuvufepatene.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17721531589.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wonazonuv.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dusegu.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9467339244.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_off0001cc5b.bin73b7203015b4f76dd12b8bbede0da744b062d42c4bdf4da433eeb476e60bf48b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1CC5B | 5016 bytes |
font_01_sfnt_off0001dd71.binc51199c62b6e27d4d1964b7beaa68f4fd63c4fe150e8f6a8d608be3fda9a9f4f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1DD71 | 11364 bytes |
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