MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one pointing to a known malicious redirector infrastructure at 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL, suggesting an attempt to lure users to malicious content under the guise of a 'human heart physiology pdf'. The presence of a large number of external PDF links further indicates a link farm or SEO poisoning tactic.
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/pify?keyword=human+heart+physiology+pdf
- http://files.gulfcoastgreyhoundadoption.org/uploads/1/3/1/4/131407164/29827efb9.pdf
- http://wapajej.middleschoolcomputerprojects.org/uploads/1/3/1/4/131454012/fujod.pdf
- http://files.mariatzortziou.com/uploads/1/3/0/8/130814076/6052744.pdf
- http://files.smajali.co.uk/uploads/1/3/0/7/130740367/de3908879c.pdf
- http://files.carolynfine.com/uploads/1/3/1/3/131379396/xabajipu_xejoriza_vometolibixod.pdf
- https://cdn.shopify.com/s/files/1/0434/0485/3402/files/voniralizuwufomesisiwar.pdf
- https://cdn.shopify.com/s/files/1/0433/5537/3720/files/delijusoregosipu.pdf
- https://cdn.shopify.com/s/files/1/0428/1863/3894/files/88501200075.pdf
- https://cdn.shopify.com/s/files/1/0428/8738/1155/files/zanufunuxoguvowidefew.pdf
- https://cdn.shopify.com/s/files/1/0437/0916/9815/files/pdf_bestand_kleiner_maken_om_te_mailen.pdf
- https://cdn.shopify.com/s/files/1/0430/7235/6505/files/86891763045.pdf
- https://cdn.shopify.com/s/files/1/0433/8899/3703/files/ford_6._9_diesel.pdf
- https://cdn.shopify.com/s/files/1/0436/3767/0041/files/banekukitimu.pdf
- https://cdn.shopify.com/s/files/1/0435/9330/2178/files/89798835328.pdf
- https://cdn.shopify.com/s/files/1/0436/8911/5801/files/jogosenodefe.pdf
- https://cdn.shopify.com/s/files/1/0434/4014/4534/files/bubibemus.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_off00012314.bin72722d5b834a65998d7904da61f9c3ef75237d6af746fbecef7c7b02b263adaa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12314 | 5516 bytes |
font_01_sfnt_off000135ad.binc8988ddbadfb4ffde00527024c0f1cd49616e1e328b0f2f85e84ad7317bbda57 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135AD | 10588 bytes |
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