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, with several pointing to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The primary attack pattern observed is the use of a link farm to distribute malicious content or phish users. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.
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/wb?keyword=if%20clause%201%20exercise%20pdf
- http://files.treehuggersoap.com/uploads/1/3/0/7/130776847/lenejoxijunapemibuba.pdf
- http://files.sarahabel.com/uploads/1/3/2/8/132814272/vawivuzebopade-xuvuvevipa-mafelitaba.pdf
- http://files.twttoa.com/uploads/1/3/0/9/130969497/tuwolibesab.pdf
- http://files.liic.org/uploads/1/3/0/7/130738719/tasowog.pdf
- http://files.millwoodchurchofchrist.com/uploads/1/3/1/1/131163969/6590990.pdf
- http://files.cindytempleton.com/uploads/1/3/1/4/131406663/nabimazineximagofo.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://bowamupodi.files.wordpress.com/2020/07/69797627696.pdf
- https://lifekatido.files.wordpress.com/2020/06/60017326123.pdf
- https://vefutoval.files.wordpress.com/2020/07/95659432323.pdf
- https://cdn.shopify.com/s/files/1/0430/2258/1923/files/ruzijosovaj.pdf
- https://cdn.shopify.com/s/files/1/0437/6936/4632/files/39367000431.pdf
- https://cdn.shopify.com/s/files/1/0431/2832/4257/files/92812043599.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36281161478.pdf
- https://cdn.shopify.com/s/files/1/0434/0586/9208/files/87819282029.pdf
- https://cdn.shopify.com/s/files/1/0431/1213/6855/files/56268842206.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49726552648.pdf
- https://cdn.shopify.com/s/files/1/0428/9495/0556/files/31271292713.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_off000054b7.bin2c665ca93309cfdafed9fa2b81ce3cda40160b4c2d4959a43a5e97d0e360e0cb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x54B7 | 4792 bytes |
font_01_sfnt_off00006513.bind8cfe1bffe587d055f0dc2ebf1b23a2050d6e90a003af94b754e94370abc0de2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6513 | 9724 bytes |
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