MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a redirector URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. This link is presented within the document body, suggesting a social engineering lure. The PDF also contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic, further supporting the malicious intent of directing users to external, potentially harmful, sites. 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.ru/wb?keyword=kurs%20angielskiego%20pdf%20chomikuj
- http://files.personalgriefcoach.net/uploads/1/3/0/7/130776344/1646909.pdf
- http://files.fencerowfinds.com/uploads/1/3/2/6/132681749/08a69e.pdf
- http://giluji.kimonocha.com/uploads/1/3/1/6/131637056/8284231.pdf
- http://fojid.asalutetoveterans.org/uploads/1/3/2/7/132712354/9315679.pdf
- http://nunugubiz.grizzlybeatz.com/uploads/1/3/2/6/132681647/162dfa.pdf
- https://cdn.shopify.com/s/files/1/0433/1054/7099/files/funowagutozod.pdf
- https://cdn.shopify.com/s/files/1/0433/5825/7306/files/ford_f150_manual_gear_shift_lever_replacement.pdf
- https://cdn.shopify.com/s/files/1/0434/0485/3406/files/84656745429.pdf
- https://cdn.shopify.com/s/files/1/0440/4274/8069/files/bazepujozavitawofase.pdf
- https://cdn.shopify.com/s/files/1/0432/0952/3355/files/1493563034.pdf
- https://cdn.shopify.com/s/files/1/0430/5059/8562/files/jordan_canonical_form_minimal_polynomial_example.pdf
- https://cdn.shopify.com/s/files/1/0429/6753/1673/files/33570221791.pdf
- https://cdn.shopify.com/s/files/1/0429/4197/2646/files/58351199823.pdf
- https://cdn.shopify.com/s/files/1/0434/4391/2856/files/78772999742.pdf
- https://cdn.shopify.com/s/files/1/0437/6700/5333/files/the_budget_savvy_wedding_planner.pdf
- https://cdn.shopify.com/s/files/1/0432/2502/2621/files/vejunatakixonililo.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004ea3.binfc746f77c0a8e19bc8d2b77e5f7eda90900766dda707f2861a3cbcfcb44eb149 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4EA3 | 5676 bytes |
font_01_sfnt_off000061ce.bin106b1df5454035e626e8c29d4b7fd7dca210d65132813490572ef06637e6dec8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61CE | 10208 bytes |
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