MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link disguised as a biography of Bertolt Brecht, which redirects to a known malicious URL (ttraff.ru). This suggests a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious, and multiple heuristics indicate malicious redirector links and a link farm designed for SEO manipulation. No scripts were extracted, but the embedded malicious URL is the primary indicator of compromise.
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=bertolt+brecht+biography+pdf
- http://zagole.en.inmatesvoices.com/uploads/1/3/2/7/132740541/3518295.pdf
- http://files.drainplumberpro.com/uploads/1/3/0/7/130775085/dfc70c.pdf
- http://files.lyndolkeith.info/uploads/1/3/1/4/131483147/zolavepibawova.pdf
- http://files.heritagegroveestates.com/uploads/1/3/1/3/131383924/vuxunof.pdf
- https://cdn.shopify.com/s/files/1/0436/0008/5160/files/bivigixomovoti.pdf
- https://cdn.shopify.com/s/files/1/0437/7749/1098/files/kenidolominojitejulofife.pdf
- https://cdn.shopify.com/s/files/1/0427/4031/8375/files/jinuwimazuvafagew.pdf
- https://cdn.shopify.com/s/files/1/0429/0812/3303/files/25889147405.pdf
- https://cdn.shopify.com/s/files/1/0429/5183/5801/files/pabuvon.pdf
- https://cdn.shopify.com/s/files/1/0432/2390/8520/files/pdf_annotator_7._0._0._702_crack.pdf
- https://cdn.shopify.com/s/files/1/0432/5598/8374/files/59001860363.pdf
- https://cdn.shopify.com/s/files/1/0431/1321/8210/files/xutugavokezoworaselepa.pdf
- https://cdn.shopify.com/s/files/1/0437/6467/8807/files/automotive_chassis_design.pdf
- https://cdn.shopify.com/s/files/1/0430/7006/2754/files/fesozug.pdf
- https://cdn.shopify.com/s/files/1/0433/6772/7269/files/igcse_chemistry_past_papers_2020.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_off00015ced.bin23e714f7209bda06f6a556c1ecf051eaaa1b2b27818669ce22eb363d857d20f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15CED | 5528 bytes |
font_01_sfnt_off00016fc6.binc27bf1ab6106943b0133a570cb3c18fae175c7c9e1a2cb1ccb78998b45e04e30 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16FC6 | 16124 bytes |
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