MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a known malicious redirector. This suggests a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of a redirector URL indicates an attempt to lead the user to a harmful destination.
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=informal+letter+english+pdf
- http://files.lakeelmojaycees.org/uploads/1/3/1/4/131409508/vetefogafaxexonaperu.pdf
- http://files.hudsoncobras.com/uploads/1/3/2/6/132695352/1898339.pdf
- http://files.snaggletoothmf.com/uploads/1/3/1/4/131453695/tejaporolulagi-jemoxaz-pirazodo-logoxinonax.pdf
- http://files.ronyahperformingarts.com/uploads/1/3/0/8/130873971/zilobin.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/6803/1143/files/jetexorigumol.pdf
- https://cdn.shopify.com/s/files/1/0429/9587/6003/files/33254299564.pdf
- https://cdn.shopify.com/s/files/1/0430/5122/1146/files/tivajakarivew.pdf
- https://cdn.shopify.com/s/files/1/0437/3735/0293/files/29026192620.pdf
- https://cdn.shopify.com/s/files/1/0435/7393/6291/files/61446762507.pdf
- https://cdn.shopify.com/s/files/1/0435/8845/2515/files/sobowopowopovalu.pdf
- https://cdn.shopify.com/s/files/1/0437/5989/4682/files/61768793585.pdf
- https://cdn.shopify.com/s/files/1/0429/8565/2375/files/45459827120.pdf
- https://cdn.shopify.com/s/files/1/0437/3191/0821/files/kivowuzumubabeb.pdf
- https://cdn.shopify.com/s/files/1/0428/1312/8863/files/padiwuritamibu.pdf
- https://cdn.shopify.com/s/files/1/0435/8553/6159/files/zikiro.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_off00005e24.bin5fe1d5183c69aed54fb5e1db72df80ab18c6387d81178e18a752729b15186fe5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E24 | 5392 bytes |
font_01_sfnt_off0000704f.bin31691539875ebcacf576fbfdbd1a3eaabf30d6143266265e74c2538270fe2bfa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x704F | 10504 bytes |
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