MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though partially obfuscated, contains text related to 'physiology of virus pdf' and references the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly indicated maliciousness, and the presence of a redirector link supports this assessment.
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/pify?keyword=physiology+of+virus+pdf
- http://files.theskinthatburns.com/uploads/1/3/1/1/131164534/f66e7e2f6bf.pdf
- http://jabozej.isis41don.com/uploads/1/3/1/8/131856703/kepegu-sididagusat.pdf
- http://files.monarchtennis.com/uploads/1/3/1/3/131379833/menefutuwanorixibu.pdf
- https://cdn.shopify.com/s/files/1/0433/2797/9678/files/the_principal_source_wow_classic.pdf
- https://cdn.shopify.com/s/files/1/0433/8234/1781/files/45569486621.pdf
- https://cdn.shopify.com/s/files/1/0437/6710/3645/files/nivetojanafabajukonapujux.pdf
- https://cdn.shopify.com/s/files/1/0427/4126/8647/files/84283339224.pdf
- https://cdn.shopify.com/s/files/1/0433/5491/4981/files/google_docs_reader.pdf
- https://cdn.shopify.com/s/files/1/0435/0253/4822/files/syndrome_de_gougerot_sjogren_cours.pdf
- https://cdn.shopify.com/s/files/1/0431/1102/2756/files/medegatoxajidut.pdf
- https://cdn.shopify.com/s/files/1/0433/3522/1403/files/guzojixepi.pdf
- https://cdn.shopify.com/s/files/1/0437/9394/0641/files/vadap.pdf
- https://cdn.shopify.com/s/files/1/0437/0015/8629/files/61085429077.pdf
- https://cdn.shopify.com/s/files/1/0431/7767/2868/files/anisio_teixeira_livros.pdf
- https://cdn.shopify.com/s/files/1/0433/1103/8632/files/wavanevafaf.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_off0000f6c6.bin00449927a80f660c8fbd1ba3fe700328650de44c50b0835554b47ffb99c3fd14 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6C6 | 5256 bytes |
font_01_sfnt_off000108ac.bin6c4c03b98d437d19f9a93a3bbaf47c352cbe4a56500f4ff129cca26cf8e506c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108AC | 12580 bytes |
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