MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to a malicious domain, disguised as interview questions. The ML classifier strongly indicates maliciousness, and the presence of numerous external links suggests a link farm or SEO poisoning tactic to drive traffic to malicious sites. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive document.
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=c+developer+interview+questions+and+answers+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://static.usrfiles.com/ugd/55cc32_ad76c970f6d243d2a686b09e9a408adb.pdf
- https://static.usrfiles.com/ugd/74a852_579fa92b99f745c89c092c3889c5fa8c.pdf
- https://static.usrfiles.com/ugd/9ff9b8_a0bbe595f6f24d16975891195d81de51.pdf
- https://static.usrfiles.com/ugd/b8c837_1e91a634fb4d42afa64c2b9967012a9c.pdf
- https://static.usrfiles.com/ugd/0a0016_804cd727736e4ee69d5146c29f9cc151.pdf
- https://static.usrfiles.com/ugd/b65acf_8b5e7e2ce13745cba176f51d917685b0.pdf
- https://static.usrfiles.com/ugd/ce0e6d_b0b6bb6910cf426e992dbb6d4a707d0e.pdf
- https://static.usrfiles.com/ugd/b8c837_0705a1967a814bac8f7f89490c9883d3.pdf
- https://static.usrfiles.com/ugd/b8c837_d78f471f79da4167b0a7e9953e87252a.pdf
- https://static.usrfiles.com/ugd/efb3f0_c90e1c48866c40c188200ed0153fd4e1.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006d50.binb141409009720bd1b5a5ae5339569795ab3c5d44ac53bc71837d78d984133429 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D50 | 5216 bytes |
font_01_sfnt_off00007f38.binf811314c180d30b36046ac78574130e08b49b4bac4a96177f079ec24cad87aa3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F38 | 10108 bytes |
font_02_sfnt_off0000a1d0.bince7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA1D0 | 4324 bytes |
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