MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic indicates that a link within the PDF leads to known malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=capex+and+opex+pdf', suggesting a phishing or redirection attempt.
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=capex+and+opex+pdf
- http://files.newleaforganizingllc.com/uploads/1/3/1/8/131857071/6418065.pdf
- http://files.leighandbloo.com/uploads/1/3/2/6/132682640/efebc2330fa3.pdf
- http://files.bluazul.com/uploads/1/3/0/9/130969999/lixevu.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/8946/1410/files/18695412901.pdf
- https://cdn.shopify.com/s/files/1/0431/5018/0503/files/20637607161.pdf
- https://cdn.shopify.com/s/files/1/0435/3864/5144/files/tigir.pdf
- https://cdn.shopify.com/s/files/1/0432/4560/0936/files/pathophysiology_of_lymphatic_filariasis.pdf
- https://cdn.shopify.com/s/files/1/0438/5269/3654/files/xunovupe.pdf
- https://cdn.shopify.com/s/files/1/0429/2729/2582/files/mejidumamumel.pdf
- https://cdn.shopify.com/s/files/1/0434/3287/0044/files/alter_ego_4_vk.pdf
- https://cdn.shopify.com/s/files/1/0436/2698/7680/files/39005733343.pdf
- https://cdn.shopify.com/s/files/1/0430/7861/5189/files/vebakowibefos.pdf
- https://cdn.shopify.com/s/files/1/0430/0128/2711/files/23073692851.pdf
- https://cdn.shopify.com/s/files/1/0433/9462/9786/files/numero_de_masa_definicion.pdf
- https://cdn.shopify.com/s/files/1/0429/3584/5017/files/34390053047.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5561128363.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_off00006180.bin03ac3a1303fb5453ed9ff112afc4d145d8f77af6cc145a9bb5745d90398aa18b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6180 | 4704 bytes |
font_01_sfnt_off0000719f.bin1454d9badee5b5a73eaa04e7c5679b8221a7cc6e85c438c3d5818847f4293267 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x719F | 10388 bytes |
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