MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, with one prominently featuring a URL that is flagged as a malicious redirector. The document body, though heavily obfuscated, includes text that appears to be a lure for a 'skills assessment'. The presence of numerous external PDF links, many pointing to benign content, suggests a link farm or SEO poisoning tactic to distribute the malicious URL. The ML classifier also strongly indicated maliciousness.
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=vb+mapp+early+echoic+skills+assessment
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_851f96e37cb9445dbee9da648d5e6290.pdf
- https://static.usrfiles.com/ugd/b65acf_42b738b6cffb4fdbbd255e3b9cc56c6c.pdf
- https://static.usrfiles.com/ugd/173616_920dffbe789f4393afb5867a0e070cbf.pdf
- https://static.usrfiles.com/ugd/b8c837_6d44194bb61a466691d258b59782fb6d.pdf
- https://static.usrfiles.com/ugd/b8c837_311c22bcd3a346988ed7ac3f2868541d.pdf
- https://static.usrfiles.com/ugd/3b47cb_2e1928773f464d4fba668f03436c0abb.pdf
- https://cdn.shopify.com/s/files/1/0429/6795/7660/files/59287212009.pdf
- https://cdn.shopify.com/s/files/1/0428/8148/2919/files/wusopubogabizubejegikote.pdf
- https://cdn.shopify.com/s/files/1/0437/2421/0326/files/automatic_stabilizer_circuit_diagram.pdf
- https://cdn.shopify.com/s/files/1/0431/6430/3522/files/sisoxozolepoxed.pdf
- https://static.usrfiles.com/ugd/b8c837_8341c4b656a844e8b5af283556d54cae.pdf
- https://static.usrfiles.com/ugd/2ac701_ab233687a2b740c5af2522fe8f5b13ef.pdf
- https://static.usrfiles.com/ugd/b8c837_7d37cacaac1b4d3b83e38fa871d2ed5f.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_off00007b3c.bindef81c225057e5a8bc0191b63dde478453e48494328c50d6cad9ae0ba0277ce9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B3C | 5444 bytes |
font_01_sfnt_off00008d98.binb13f963eac537c5457c3913f9ca95a083031988c8a859509b7a1199e7fd14d4e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D98 | 10384 bytes |
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