MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector, https://ttraff.cc/pify?keyword=cervicitis+cronica+quistica+pdf, indicating an attempt to lead the user to malicious content. The ML classifier also strongly flagged this PDF as malicious.
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=cervicitis+cronica+quistica+pdf
- http://files.uwflagler.org/uploads/1/3/1/0/131070604/libavixokazosi.pdf
- http://files.helenwreddingschoolofdance.com/uploads/1/3/2/6/132695525/52dae4.pdf
- http://files.elizabethashdown.co.uk/uploads/1/3/0/8/130874658/4391498.pdf
- http://wukav.havenwoodteaco.com/uploads/1/3/0/9/130968984/wiguvorad.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/8199/0304/files/jexuxefixiwukelomatepum.pdf
- https://cdn.shopify.com/s/files/1/0437/2506/2298/files/13659819571.pdf
- https://cdn.shopify.com/s/files/1/0435/9146/7176/files/lulalujaboxunadozowuna.pdf
- https://cdn.shopify.com/s/files/1/0437/5488/1175/files/conformational_analysis_of_cycloalkanes.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80023348890.pdf
- https://cdn.shopify.com/s/files/1/0431/4418/3974/files/79175023840.pdf
- https://cdn.shopify.com/s/files/1/0429/6205/9427/files/1091545528.pdf
- https://cdn.shopify.com/s/files/1/0434/1566/6849/files/45474143814.pdf
- https://cdn.shopify.com/s/files/1/0431/8153/9489/files/75756113799.pdf
- https://cdn.shopify.com/s/files/1/0431/6728/5410/files/rukujixerajusexakegi.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_off00005f66.binb46d95f929336985a8d4d787191ca52cee0e2a680d7a8052b4f613220cef0d7f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F66 | 5208 bytes |
font_01_sfnt_off00007131.bin69dfef449c9625f5d4e60a3092df45c6756a6c1b43635950d2543a6fc9c8da10 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7131 | 9916 bytes |
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