MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file contains a large number of embedded links to other PDF documents, forming a link farm. One of the primary links directs to a known malicious redirector at 'ttraff.ru'. The ML classifier strongly indicated maliciousness, and the PDF structure itself is flagged for containing a mass external PDF link farm. The embedded links are likely used to distribute malicious content or manipulate search engine results.
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/wix?keyword=american+standard+cadet+3+dual+flush+manual
- https://static.usrfiles.com/ugd/b8c837_cd645dfcb9004143a539970338609758.pdf
- https://static.usrfiles.com/ugd/ecd213_6e5006f19d02433a871bac0f4cb6d06f.pdf
- https://static.usrfiles.com/ugd/6a7407_997c7087d86e4479bb56141a36e7e818.pdf
- https://cdn.shopify.com/s/files/1/0433/2388/3688/files/59374551482.pdf
- https://cdn.shopify.com/s/files/1/0431/5136/0164/files/wotojojufatenipin.pdf
- https://cdn.shopify.com/s/files/1/0431/0145/4496/files/assessment_for_learning_tools.pdf
- https://cdn.shopify.com/s/files/1/0431/6574/5314/files/lurata.pdf
- https://static.usrfiles.com/ugd/299074_67928eb92ae9410aae275ee161a9402a.pdf
- https://static.usrfiles.com/ugd/11f207_a9b9656bcc6e46f294032499ddbbb664.pdf
- https://static.usrfiles.com/ugd/97634b_e16e7121fdd64e70a4638beabd15c581.pdf
- https://static.usrfiles.com/ugd/b8c837_1a080ea90e7643849987ba25e7c634b6.pdf
- https://static.usrfiles.com/ugd/f3cb45_7c801ac01d6646e185fb82ec0963be1a.pdf
- https://static.usrfiles.com/ugd/b8c837_03fabe0c4f734b85b60c8473cbeac064.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004d20.bin2d2d13cca39aae1dccd1004c8026f40cb6f1173cf26ca22ae5a68b537724edd8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4D20 | 5188 bytes |
font_01_sfnt_off00005e82.binff6d679316f9a20f93c9d8bf9704055643e3dc80909e909e26e4672af04e8fd7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E82 | 10368 bytes |
font_02_sfnt_off00008142.bin1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8142 | 4324 bytes |
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