MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1566.002 Spearphishing Attachment
The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL for the redirector and appears to be a lure related to 'equivalent fractions worksheets grade 3 pdf'. The ML classifier strongly indicates maliciousness. The primary attack pattern involves redirecting the user to a malicious site.
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/pify?keyword=equivalent+fractions+worksheets+grade+3+pdf
- http://files.culinaryvacationsinc.com/uploads/1/3/1/4/131437924/donuxowodunejuvito.pdf
- http://rejol.kenrubitskyassociates.com/uploads/1/3/0/8/130815009/5178666.pdf
- http://pukul.rabbiklein.com/uploads/1/3/1/4/131453645/sokitabumev.pdf
- https://cdn.shopify.com/s/files/1/0438/8818/1400/files/tolivuxikoxu.pdf
- https://cdn.shopify.com/s/files/1/0439/4716/3806/files/fepaxozowilude.pdf
- https://cdn.shopify.com/s/files/1/0430/4017/8333/files/jobavudonitomi.pdf
- https://cdn.shopify.com/s/files/1/0433/3050/2806/files/bowiziwewepuzam.pdf
- https://cdn.shopify.com/s/files/1/0429/6520/5141/files/rixenegekuvovefalulo.pdf
- https://cdn.shopify.com/s/files/1/0430/4194/7801/files/48642455260.pdf
- https://cdn.shopify.com/s/files/1/0434/2880/6808/files/2088081374.pdf
- https://cdn.shopify.com/s/files/1/0434/3077/2901/files/leleguvawana.pdf
- https://cdn.shopify.com/s/files/1/0433/8722/4214/files/15990742949.pdf
- https://cdn.shopify.com/s/files/1/0430/9018/2304/files/wivuxokirijaxibofaxusik.pdf
- https://cdn.shopify.com/s/files/1/0429/3882/6908/files/41864538156.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_off00007110.binfdd32298caabdc092a6d6942eaf61f7f378bfcbe72c8c2286109ce5f8048d1b9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7110 | 5880 bytes |
font_01_sfnt_off00008526.bin2f1f0b3e4a3c9c60ff0978e64c47085b6a85287d7acc411edf7395f6811b2cd9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8526 | 9924 bytes |
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