MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links, with one prominent URL pointing to a known malicious redirector. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains the same suspicious URL, suggesting a lure to a malicious site. The presence of numerous Shopify links, while mostly benign, forms part of a link farm strategy to improve SEO for malicious content.
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=atividades+recursos+naturais+6o+ano+ciencias+doc
- https://cdn.shopify.com/s/files/1/0431/2816/0413/files/83598851916.pdf
- https://cdn.shopify.com/s/files/1/0435/8383/2227/files/nemepomoxe.pdf
- https://cdn.shopify.com/s/files/1/0433/9118/9157/files/47948562530.pdf
- https://cdn.shopify.com/s/files/1/0428/4373/4182/files/dabasadejoxowig.pdf
- https://cdn.shopify.com/s/files/1/0431/9870/9917/files/sensory_evaluation_techniques_download.pdf
- https://cdn.shopify.com/s/files/1/0435/1708/3803/files/nezinudogajukejimomib.pdf
- https://cdn.shopify.com/s/files/1/0434/0360/8214/files/99276412796.pdf
- https://cdn.shopify.com/s/files/1/0430/2359/7725/files/kaliribat.pdf
- https://cdn.shopify.com/s/files/1/0429/2309/8279/files/fake_marriage_certificate.pdf
- https://cdn.shopify.com/s/files/1/0433/0913/8075/files/vevipevitopujaxozawenu.pdf
- https://cdn.shopify.com/s/files/1/0431/5794/6519/files/37815991940.pdf
- https://cdn.shopify.com/s/files/1/0437/1903/2987/files/86776925250.pdf
- https://cdn.shopify.com/s/files/1/0433/1431/5422/files/3._5_frostburn.pdf
- https://static.usrfiles.com/ugd/b8c837_0e7bc79e0ba34dc097d6464112ca8e8f.pdf
- https://static.usrfiles.com/ugd/dfb5f8_f9a4d82f97df47b98b6558ffce61cf12.pdf
- https://static.usrfiles.com/ugd/b8c837_a357a50928244d5bb6def5c10414f7e1.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_off000083ab.binb60c53f80b54f36db378fd4ff0f59756844715b375b3e0fe500a32e99f0f19d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83AB | 5104 bytes |
font_01_sfnt_off00009511.binee61f4e0a51ca99feb866cedee85d69cbaa88bd69629644019e9cfe3d4670774 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9511 | 15624 bytes |
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