MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to a malicious domain, disguised as a worksheet answer key. This is further supported by heuristics indicating a malicious redirector link and a PDF link farm. The ML classifier also strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering through 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=animal+cell+coloring+worksheet+answer+key
- https://cdn.shopify.com/s/files/1/0428/9842/3967/files/puwonekubenizaterevu.pdf
- https://cdn.shopify.com/s/files/1/0434/5597/1480/files/toberegagenis.pdf
- https://cdn.shopify.com/s/files/1/0427/6604/1244/files/rotexezatekafunofatu.pdf
- https://cdn.shopify.com/s/files/1/0436/6296/6937/files/1877086051.pdf
- https://cdn.shopify.com/s/files/1/0429/4764/1510/files/37582613657.pdf
- https://static.usrfiles.com/ugd/b8c837_be7e26099c5243aa8b9e799859944a25.pdf
- https://static.usrfiles.com/ugd/b8c837_651e5f6040ec418d9a75004962bd327c.pdf
- https://cdn.shopify.com/s/files/1/0435/2484/9815/files/39305826587.pdf
- https://cdn.shopify.com/s/files/1/0431/4028/4583/files/original_bhagavad_gita_book_in_english.pdf
- https://cdn.shopify.com/s/files/1/0430/5711/9386/files/46697376796.pdf
- https://cdn.shopify.com/s/files/1/0433/8394/7427/files/punerupebilo.pdf
- https://static.usrfiles.com/ugd/b8c837_2d453f29562f478f9de2db5135a578fe.pdf
- https://static.usrfiles.com/ugd/b8c837_404c24a989354ec29ef1d2ea9a374377.pdf
- https://static.usrfiles.com/ugd/b8c837_9189c0d0b57d498f90bb808ddc05231a.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_off00006378.bin3b2674e37d8cedafb5411662984beb8eb4311b53ed532f300c05a535d7ad2703 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6378 | 5460 bytes |
font_01_sfnt_off000075e6.bin3aa4083034e0667dfc2a13d706a5165ebada17fd5ebc0298770df3bee7c0aa95 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75E6 | 10684 bytes |
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