MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic, with one prominent malicious URL pointing to 'traffking.ru'. ClamAV and an ML classifier also flagged this PDF as malicious, specifically as a phishing trojan. The presence of embedded URLs and the nature of the link farm suggest an attempt to redirect users to malicious content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 6
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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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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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://traffking.ru/123?utm_term=tu+zonas+erroneas+libro In PDF document text
- https://s3.amazonaws.com/netinuwa/54257864239.pdfIn PDF document text
- https://wubigunes.weebly.com/uploads/1/3/4/5/134507070/5262126.pdfIn PDF document text
- https://s3.amazonaws.com/wexukufedepim/heroclix_rarity_guide.pdfIn PDF document text
- https://s3.amazonaws.com/fifomi/50630826540.pdfIn PDF document text
- https://tebumozokafu.weebly.com/uploads/1/3/4/4/134471783/gezurevuvogixamomo.pdfIn PDF document text
- https://xilemizafijoso.weebly.com/uploads/1/3/4/4/134483217/9321252.pdfIn PDF document text
- https://s3.amazonaws.com/dudurat/samsung_manual_refrigerator.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/e7522cea-d1a7-4c59-a538-1cad4e3e29e8/losakimari.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e0ab81e6-8205-4f4f-b3e5-2fb423a7fc97/1821514172.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/35d8a8d0-079d-4292-b3f8-f33484c2a501/luvavatijigapu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/26311f92-7ea4-4014-b6df-509841bcd34d/25821525698.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0c6eea94-e32f-4972-95ec-f33bb7d866a6/mega_man_11_all_bosses_no_damage_no_items.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e284.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE284 | 4820 bytes |
SHA-256: 1db6f90ac61c76220c9132d237c56a0ba2a6b2cf12c47bc499b0f1d80da14c13 |
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font_01_sfnt_off0000f2ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2ED | 1800 bytes |
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0 |
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font_02_sfnt_off0000fb7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB7B | 11476 bytes |
SHA-256: 43b2ddae8de5c4474692c85ecb9f228f201a1f9496275b6b7cf7f1cc9f7f20e0 |
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font_03_sfnt_off000120a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120A8 | 16312 bytes |
SHA-256: bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939 |
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