MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, appears to be a lure related to academic notes, suggesting a phishing attempt. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or exploitation.
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.me/wix?keyword=acids+and+bases+notes+worksheet
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_e9ddf0733eb54bbc9b41d317c0533e6f.pdf
- https://static.usrfiles.com/ugd/74e9cf_e2644dd735cb469184334ca108b26b3c.pdf
- https://static.usrfiles.com/ugd/cf5aa9_bd1d20d28e5f4ba6bb0fc4a3868bf119.pdf
- https://static.usrfiles.com/ugd/b8c837_223a44e38b0d4f0a895ad0371784530b.pdf
- https://static.usrfiles.com/ugd/9219f8_61e4d775c80f489491ccaac7b612c45f.pdf
- https://static.usrfiles.com/ugd/d55797_f821360fd81d47158b35dd7e47fb4bec.pdf
- https://static.usrfiles.com/ugd/22739b_2bd0446754e14cca8f5b1c17055fb55d.pdf
- https://static.usrfiles.com/ugd/2f7489_2ec89f0b6b844cd4913522df4c22da5a.pdf
- https://static.usrfiles.com/ugd/b8c837_7392c2929cee40968e657850fd264216.pdf
- https://static.usrfiles.com/ugd/18f527_d4272bf08ed84a5eb674c5347e11fd6d.pdf
- https://static.usrfiles.com/ugd/f8de3e_188a521758eb4bbc841181f9cfb87a2d.pdf
- https://static.usrfiles.com/ugd/b88e3d_55b63198aea9446891dcb0696aaa8911.pdf
- https://static.usrfiles.com/ugd/b30cf0_c1db4c943ee6450cbb52551b31b84c56.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://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off000095f8.bin2bb5d0347177f4fd83b036beb9da404b4912183ca59a33fc86a9110c47deddf5 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x95F8 | 18332 bytes |
font_00_sfnt_off00006046.binfba8bae34bb2a26db8e8a495b2217c01a9dec0011cde48829bed444007c9b1e7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6046 | 5280 bytes |
font_01_sfnt_off00007248.bin709a86011fcaa9cb70659f39b54b36fbf2f14ef851d524387ee46b01da790312 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7248 | 10364 bytes |
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