MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external resources, including a primary redirector URL that is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'Castrol 5w30 edge pdf' and the authoring application, suggesting a lure to disguise the malicious intent. The presence of a link farm and a malicious redirector indicates an attempt to lead users to potentially harmful content or phishing sites.
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=castrol+5w30+edge+pdf
- http://files.donnasboy.com/uploads/1/3/1/6/131636655/7e2c731f0b9a9.pdf
- http://files.burmusik.com/uploads/1/3/2/6/132681885/xetemedakaji-zesuzuzimed-junawizevona-suxutuvixane.pdf
- http://files.brysonfinney.com/uploads/1/3/1/8/131871690/652255720c77a24.pdf
- http://files.japhotos.me/uploads/1/3/0/9/130969346/91b06dffa.pdf
- http://files.tynesidebookclub.com/uploads/1/3/0/8/130813582/6424547.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/2778/3080/files/39143600460.pdf
- https://cdn.shopify.com/s/files/1/0440/4648/3606/files/47108327809.pdf
- https://cdn.shopify.com/s/files/1/0431/4356/1376/files/2304621284.pdf
- https://cdn.shopify.com/s/files/1/0428/3373/9932/files/gitedamarowodugusa.pdf
- https://cdn.shopify.com/s/files/1/0435/1878/7736/files/allahabad_state_university_time_table_2020.pdf
- https://cdn.shopify.com/s/files/1/0438/3549/0461/files/32973546394.pdf
- https://cdn.shopify.com/s/files/1/0433/4449/4760/files/asturias_tab_download.pdf
- https://cdn.shopify.com/s/files/1/0438/9902/7611/files/29862419180.pdf
- https://cdn.shopify.com/s/files/1/0431/8865/0142/files/sutilifizukeg.pdf
- https://cdn.shopify.com/s/files/1/0431/9671/1069/files/20275441870.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000512e.binecfc007a47ce2526b0d59e9964f31de2bb4f10a7cb640772ece5b3343338e62a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x512E | 5636 bytes |
font_01_sfnt_off00006478.bine8bc7e439191602a5bf6219d79860a9bd432ae7dc67b2c94621aa768d69188ad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6478 | 10216 bytes |
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