MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs. The document body, though heavily obfuscated, contains the same suspicious URL, suggesting an attempt to disguise malicious content as a technical document. The primary attack vector appears to be directing users to malicious infrastructure via embedded links.
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/wix?keyword=hibbeler+13th+edition+statics
- https://static.usrfiles.com/ugd/b8c837_fa32e7286ed54b8caacc51df05390803.pdf
- https://static.usrfiles.com/ugd/b8c837_7805abf5b00b486fb236d4d60a8855b2.pdf
- https://static.usrfiles.com/ugd/271e65_4d916e9f8bec408fbd497ba5783db70d.pdf
- https://static.usrfiles.com/ugd/760101_c7600d83e8504b93abc708791903f8ae.pdf
- https://static.usrfiles.com/ugd/b8c837_fa89c02855b941628bacb9b8834f225e.pdf
- https://static.usrfiles.com/ugd/b8c837_fb3e26e588d44a439b6545c18e965d58.pdf
- https://cdn.shopify.com/s/files/1/0433/0668/0484/files/types_of_advertising_techniques.pdf
- https://cdn.shopify.com/s/files/1/0437/9131/9200/files/93846315983.pdf
- https://cdn.shopify.com/s/files/1/0432/0536/1821/files/17984466805.pdf
- https://cdn.shopify.com/s/files/1/0428/7997/5591/files/polaris_trailblazer_250_service_manual.pdf
- https://static.usrfiles.com/ugd/b8c837_69260b6ea10e4c69897655aa39b009b2.pdf
- https://static.usrfiles.com/ugd/822ecd_41a30e82c2a64faf919a7da75a1f4788.pdf
- https://static.usrfiles.com/ugd/b8c837_b8529f23e5684facae91fdc610ea223f.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_off00004b70.bin1c1e35226d99431b5a7d379e01fb843b566fc8236ca73f948cd9be0bf00062e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B70 | 5344 bytes |
font_01_sfnt_off00005d82.binf450ba3a5e7ce82230721e65dd6e0750921304e180b7da08a41b3a43f2e92a9b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D82 | 9468 bytes |
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