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, suggesting a link farm or SEO poisoning attempt. One critical heuristic identified a link to a known malicious redirector, `https://ttraff.cc/pify?keyword=candidiasis+vajinal+sintomas+pdf`, which is likely used to obscure the final malicious destination. The ML classifier also strongly indicated maliciousness.
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=candidiasis+vajinal+sintomas+pdf
- http://files.blindinggray.com/uploads/1/3/1/4/131407138/f2c988d2.pdf
- http://files.tamramccarthy.org/uploads/1/3/0/7/130776561/dudegaparixiz_lafix_makazomakigik_vowelabudupod.pdf
- http://pazawuj.wangnaumannlab.com/uploads/1/3/1/3/131378776/b5213.pdf
- http://nujewemur.section27alliance.com/uploads/1/3/1/4/131437423/c831b319652f61.pdf
- http://files.pasadenaphysed.com/uploads/1/3/2/7/132711983/eabe073ad6.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0440/7810/4728/files/rufudi.pdf
- https://cdn.shopify.com/s/files/1/0430/9801/3845/files/nabubevi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jegatakufiritejat.pdf
- https://cdn.shopify.com/s/files/1/0434/4807/4405/files/52028279357.pdf
- https://cdn.shopify.com/s/files/1/0432/0467/3699/files/97238727154.pdf
- https://cdn.shopify.com/s/files/1/0435/2029/5064/files/negozelepur.pdf
- https://cdn.shopify.com/s/files/1/0431/8652/0228/files/matisyahu_one_day.pdf
- https://cdn.shopify.com/s/files/1/0431/2930/7296/files/wilms_tumor_pathology.pdf
- https://cdn.shopify.com/s/files/1/0435/6354/8833/files/16250258295.pdf
- https://cdn.shopify.com/s/files/1/0435/4647/6708/files/veranepasavewivosobasodu.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_off00006440.bin1c952cb3ffbc457ecd6b2442c14d70f186f74a942026cdbcddf34f77dd3daaad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6440 | 5132 bytes |
font_01_sfnt_off000075b4.bin51ed6d2d92401b78a14504b8bc7ae5af9147096ae3a58a19be1ffab44029ae45 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75B4 | 10252 bytes |
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