MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged for containing a large number of external links, with one identified as a known malicious redirector. The document body contains obfuscated text and embedded URLs, suggesting an attempt to lure users to malicious websites. 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.com/wb?keyword=metric%20coarse%20thread%20chart%20pdf
- http://files.fencenola.com/uploads/1/3/1/6/131637136/9759252.pdf
- http://lesowowom.alessandrorech.com/uploads/1/3/1/3/131380485/zotemabigaboreb.pdf
- http://pozadix.learningthefinnishway.com/uploads/1/3/2/7/132740619/12c5405e0.pdf
- http://wuwumos.annegreycollective.com/uploads/1/3/1/0/131070305/7120523.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/9148/3041/files/xulazax.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/14192803693.pdf
- https://cdn.shopify.com/s/files/1/0439/2812/5595/files/20840489726.pdf
- https://cdn.shopify.com/s/files/1/0448/1178/0257/files/baal_veer_episode_300_video.pdf
- https://cdn.shopify.com/s/files/1/0439/9765/9294/files/approval_process_in_salesforce.pdf
- https://cdn.shopify.com/s/files/1/0429/7903/3241/files/zavovogirubujoxovi.pdf
- https://cdn.shopify.com/s/files/1/0432/2865/9870/files/49492802269.pdf
- https://cdn.shopify.com/s/files/1/0434/0485/3402/files/aprendizagem_e_inovao_organizacional_fleury.pdf
- https://cdn.shopify.com/s/files/1/0431/5771/7152/files/62000999547.pdf
- https://cdn.shopify.com/s/files/1/0435/7016/7966/files/temagagezejumelaxowizus.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_off00006d00.bin2ae3b60aba3736a5272ecf6c3a4f1db7ffc5b539b31f16ef38aa1c278a5ceea7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D00 | 5216 bytes |
font_01_sfnt_off00007eb8.bin85ad65983aa68b172f1a466bd5e4cc23b039273f2725c27835d7b7ef75a03042 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EB8 | 15092 bytes |
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