MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://traffine.ru/123?utm_term=nacl+ionic+or+covalent'. This suggests the document is designed to lead users to malicious sites. The presence of a large number of external links, including one to a 'facebook_photos_from_messages.pdf', indicates a potential link farm or phishing lure. The ML classifier and ClamAV detection strongly support the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://traffine.ru/123?utm_term=nacl+ionic+or+covalent In PDF document text
- https://cdn-cms.f-static.net/uploads/4365998/normal_5f87127e0bd97.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384644/normal_5f9247d08b8de.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444114/normal_5fb479a5e69ea.pdfIn PDF document text
- https://lixubirenolona.weebly.com/uploads/1/3/4/6/134669397/13653c58.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366020/normal_5f8a6836d1d62.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static1.squarespace.com/static/5fc704532122570d58ffb8d8/t/5fd713b95488895576c3bd9e/1607930810306/facebook_photos_from_messages.pdfIn PDF document text
- https://s3.amazonaws.com/wujixus/multiple_meaning_words_worksheets_7th_grade.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ee4d488a-de5e-4eba-b2f2-7656a0a3159e/sivowisitovad.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2cdd086f-aaa9-4888-9210-e0ff9409a7ac/68644365931.pdfIn PDF document text
- https://s3.amazonaws.com/jasipefulaxiduj/rosumizagisologizawevi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/83d06e4c-5649-4d84-85e8-e2f0b881f317/savannah_monitor_size_chart.pdfIn PDF document text
- https://s3.amazonaws.com/tevigotu/trafikinformation_arlanda_inrikes_avgngar.pdfIn PDF document text
- https://s3.amazonaws.com/sinadi/jawawilulamopojiguke.pdfIn PDF document text
- https://s3.amazonaws.com/jowutoneranemuk/answering_machine_greetings_for_business.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/28c41774-d6c6-43ae-8e8d-cfcb879149bc/excel_pivot_table_manual_sort_columns.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d09b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD09B | 4644 bytes |
SHA-256: 0c15c51313c3a15a67d3e58ba64a6855915e11e4df93e6da30dd3f9d6ae14993 |
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font_01_sfnt_off0000e07c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE07C | 10252 bytes |
SHA-256: 27c9a053f44fb044bbf99bcd717e397fe5dbd0a4e53f8f85b90a268390aaa159 |
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