MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous links, including one pointing to a known malicious redirector at 'ttraff.ru'. The document body, though partially corrupted, suggests a lure related to formal letter formatting. The presence of a link farm and the ML classifier's high confidence indicate malicious intent, likely to redirect users to a phishing or malware distribution 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.ru/pify?keyword=format+of+formal+letter+in+english+pdf
- http://files.nationalnightouteasterndistrict.com/uploads/1/3/1/4/131437702/5118415.pdf
- http://files.jennifercolpittsphotography.com/uploads/1/3/1/6/131606798/zuzutetux.pdf
- http://files.rochonsandshall.com/uploads/1/3/1/4/131406735/kedibetewawevimesuke.pdf
- http://files.wisconsinlitmap.com/uploads/1/3/1/3/131381464/tidelijiposovu-jidotamuzifa-wufiwufon-zinifinamibu.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86372263330.pdf
- https://cdn.shopify.com/s/files/1/0431/3861/3399/files/bewitibubeterin.pdf
- https://cdn.shopify.com/s/files/1/0435/7583/6840/files/wobejelezedini.pdf
- https://cdn.shopify.com/s/files/1/0431/6200/9755/files/46420620761.pdf
- https://cdn.shopify.com/s/files/1/0431/6590/9160/files/29571652357.pdf
- https://cdn.shopify.com/s/files/1/0436/7260/0726/files/rariwezuduva.pdf
- https://cdn.shopify.com/s/files/1/0437/6828/3294/files/90647915151.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65105912314.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dojedeteremedadedarovir.pdf
- https://cdn.shopify.com/s/files/1/0433/5340/7646/files/nefifajaxej.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_off00005ee2.bin1c3db6f9da325975060200511e91f7a7d084922cdb9a4452c1eca0e0adde0f7d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EE2 | 5412 bytes |
font_01_sfnt_off0000711c.bin8865a502325c703b5a581bb06f5e73a2a02d299f55ed33269aa863549dbed934 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x711C | 10180 bytes |
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