MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged by a machine learning classifier and contains numerous embedded links. One of these links, https://ttraff.cc/wix?keyword=database+system+concepts+6th+edition, points to known malicious redirector infrastructure. The document appears to be a link farm, designed to lure users into clicking through to potentially harmful sites by disguising itself as an academic resource.
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/wix?keyword=database+system+concepts+6th+edition
- https://static.usrfiles.com/ugd/b8c837_7642f6ffc28645288c5cd434533edc10.pdf
- https://static.usrfiles.com/ugd/b8c837_89ca5d07582545b3a6e3f7cf3843dbbc.pdf
- https://static.usrfiles.com/ugd/b8c837_7094a8965da7427196345dcf8399505a.pdf
- https://static.usrfiles.com/ugd/b8c837_f9a30bc7090a44ca80bfe79b7bc7f257.pdf
- https://static.usrfiles.com/ugd/b8c837_79eba934a7234347be9d08136de9d753.pdf
- https://static.usrfiles.com/ugd/b8c837_20e37c5d833c42aeb7bbb095db66a8da.pdf
- https://static.usrfiles.com/ugd/b8c837_d7ad1b28489c4ecb8a9d12318e518c9b.pdf
- https://static.usrfiles.com/ugd/b8c837_94a74801f76b4755a92aa15516616763.pdf
- https://static.usrfiles.com/ugd/b8c837_2dc492b0b03549709b0c968f3d0f165c.pdf
- https://static.usrfiles.com/ugd/b8c837_e29708be502f42099aadc15b0e736f8b.pdf
- https://cdn.shopify.com/s/files/1/0436/0349/3022/files/loxijujozuponexasetotaxiv.pdf
- https://cdn.shopify.com/s/files/1/0437/9164/6880/files/10652652307.pdf
- https://cdn.shopify.com/s/files/1/0430/6193/6290/files/90983297611.pdf
- https://cdn.shopify.com/s/files/1/0431/7102/0957/files/wusatomo.pdf
- https://cdn.shopify.com/s/files/1/0435/0833/4744/files/87982847779.pdf
- https://cdn.shopify.com/s/files/1/0431/3012/6496/files/57226627140.pdf
- https://cdn.shopify.com/s/files/1/0457/8702/1478/files/zibejuvirabijupusu.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_off00004837.bin36e1c0f658a3e28dfce17eecdf39fbeb05e25f13d2b686c99a4956502673a15e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4837 | 5580 bytes |
font_01_sfnt_off00005afa.bin2ed2af0658564c9df97f4850dbef4a1b4310cbbeba0928228132c6540b7b713d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5AFA | 10196 bytes |
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