MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a high number of embedded links, with at least one pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, suggests a lure related to 'ativos financeiros pdf'. The presence of numerous external PDF links, many hosted on Shopify, indicates an attempt to create a link farm or distribute further 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.com/pify?keyword=ativos+financeiros+pdf
- http://files.ontheedgeofreason.com/uploads/1/3/1/4/131408170/521b71c0418ccf5.pdf
- http://files.apperley-deerhurst.co.uk/uploads/1/3/2/6/132680827/fabonaxatafi_zajaxe_pejap.pdf
- http://files.thompsonphoto.co.uk/uploads/1/3/0/8/130814329/9681255.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/3510/6200/files/ligukeg.pdf
- https://cdn.shopify.com/s/files/1/0431/2491/6388/files/20865667669.pdf
- https://cdn.shopify.com/s/files/1/0432/1044/0862/files/26756839859.pdf
- https://cdn.shopify.com/s/files/1/0430/4479/8613/files/95341583479.pdf
- https://cdn.shopify.com/s/files/1/0428/5743/1199/files/87491138740.pdf
- https://cdn.shopify.com/s/files/1/0429/7284/0090/files/fifugeripufamevuzix.pdf
- https://cdn.shopify.com/s/files/1/0433/6759/6184/files/sisek.pdf
- https://cdn.shopify.com/s/files/1/0430/7510/9013/files/kujoke.pdf
- https://cdn.shopify.com/s/files/1/0433/4200/4375/files/jilolo.pdf
- https://cdn.shopify.com/s/files/1/0437/8827/1773/files/fefekuturetasimigu.pdf
- https://cdn.shopify.com/s/files/1/0428/8688/9625/files/36532376446.pdf
- https://cdn.shopify.com/s/files/1/0431/5214/6586/files/lefejadolutikajipalas.pdf
- https://cdn.shopify.com/s/files/1/0433/3171/5225/files/muvujakoxe.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_off00008bd5.bineecb8de116550395d31c87c6beada9eba11eb1e1b15720bff1d69c66cfa9f35f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8BD5 | 4956 bytes |
font_01_sfnt_off00009cb4.binf1ca860a2d17d8bf9b624e124329b96658929ee6022fcefe27506fc12cee1936 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9CB4 | 11272 bytes |
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