MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to a link farm designed to redirect users to potentially malicious content, as indicated by the critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK. The document body itself contains a URL that leads to a redirector, further supporting the malicious intent. 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=basic+russian+pdf
- http://files.greatwhiteninja.com/uploads/1/3/1/6/131636946/nowur-zobosuw-jimovutamoweji-pekigafis.pdf
- http://wamanu.nicolekejiawu.com/uploads/1/3/2/3/132302921/1533996.pdf
- http://files.dixielandbulldogges.net/uploads/1/3/1/4/131438501/222066.pdf
- http://files.liskigroup.com/uploads/1/3/1/6/131637409/9522854.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/0956/3045/files/linux_for_programmers_and_users.pdf
- https://cdn.shopify.com/s/files/1/0431/6174/7620/files/zugaxafar.pdf
- https://cdn.shopify.com/s/files/1/0428/6165/8279/files/wukaniseg.pdf
- https://cdn.shopify.com/s/files/1/0431/5286/7494/files/dibosanisijimigat.pdf
- https://cdn.shopify.com/s/files/1/0432/6857/1294/files/56106680017.pdf
- https://cdn.shopify.com/s/files/1/0438/8107/0747/files/cittadinanza_e_costituzione.pdf
- https://cdn.shopify.com/s/files/1/0429/4891/9450/files/71544739969.pdf
- https://cdn.shopify.com/s/files/1/0431/8671/6830/files/simple_appointment_letter_sample.pdf
- https://cdn.shopify.com/s/files/1/0430/3532/8663/files/21610420852.pdf
- https://cdn.shopify.com/s/files/1/0432/2479/3245/files/storm_brigid_kemmerer_download.pdf
- https://cdn.shopify.com/s/files/1/0439/3477/7499/files/zafifetetapenopibodu.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_off00006d7a.bin943c0046363c0907c96b1d57b9dc1047e07c2270858df5f345a4c924597a79f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D7A | 5164 bytes |
font_01_sfnt_off00007f1d.bind6e1740e1c290c3cadade9bcb76ceca26c38e83a33cc2094f8c9301351b724cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F1D | 9788 bytes |
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