MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains a large number of external links, with one pointing to 'https://trafftec.ru/123?utm_term=sse+alternate+start', suggesting a link farm or phishing attempt. The PDF structure and the presence of numerous external links indicate an attempt to direct users to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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External URI info PDF_URIPDF contains an external URL action
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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://trafftec.ru/123?utm_term=sse+alternate+start
- https://jamafijuzu.weebly.com/uploads/1/3/1/4/131437216/jejuroletadodufana.pdf
- https://cdn-cms.f-static.net/uploads/4410722/normal_5fa94d1e1eba1.pdf
- https://pinoxelu.weebly.com/uploads/1/3/4/1/134108818/6877299.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/bezutu/55239285208.pdf
- https://static1.squarespace.com/static/5fc3c939bd14ff0dd2ae97c9/t/5fc515da1972c46e3c3ef953/1606751707368/72925861884.pdf
- https://s3.amazonaws.com/gasodamuza/rusozamizolibef.pdf
- https://static1.squarespace.com/static/5fc77f0702915d4a16f8d210/t/5fcf14a87c36362741a7c681/1607406761377/word_jumble_cheat_machine.pdf
- https://static1.squarespace.com/static/5fdd37888094fd3ccf307d49/t/5fdd563c91828d0f5d2d5d8d/1608341053533/printable_dc_metro_map.pdf
- https://static1.squarespace.com/static/5fdd391cd610986319751208/t/5fdd808e6a6ad7222f0305bd/1608351887380/38301606622.pdf
- https://s3.amazonaws.com/xupimaral/79012584421.pdf
- https://s3.amazonaws.com/povodijirig/zamonavudoduvegitejovojop.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_off0000f2a3.bincc8a4e27db62ddba929659efb5561615ea3b7de42c3b43d66a8409bf373dba86 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2A3 | 4784 bytes |
font_01_sfnt_off000102ea.bined8dbfd86b29077b6223fb34550b4172ef87567cd7ca835a84cf4db7fde43050 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102EA | 10840 bytes |
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