MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains numerous embedded links, many of which point to known malicious redirector infrastructure or disposable hosting. The heuristic firings indicate a link farm designed to redirect users to malicious sites, with one URL specifically identified as a malicious redirector. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://dafemum.ru/strik?utm_term=sat+practice+test+2+answers+pdf In PDF document text
- https://zunimivivonuz.weebly.com/uploads/1/3/4/0/134017399/3695802.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4416932/normal_5fca7d2ea4930.pdfIn PDF document text
- https://nuxabofubuwaxef.weebly.com/uploads/1/3/2/7/132740905/d4082d83d335a28.pdfIn PDF document text
- http://repair-kvadrokopterov.ru/80062951785e6ee.pdfIn PDF document text
- http://firstsecu-paypal.com/vovodizabanozepepgz866.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375894/normal_6061b622da60c.pdfIn PDF document text
- http://copyrightreports.com/biporalogewexegizufujevot7o6xb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405925/normal_6048316d30e60.pdfIn PDF document text
- https://gaxowaxogofesix.weebly.com/uploads/1/3/4/7/134719425/2716994.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4427809/normal_600984d508402.pdfIn PDF document text
- http://vovpomnim.ru/76552159887cak9g.pdfIn PDF document text
- https://bodukomemewasug.weebly.com/uploads/1/3/4/7/134701633/gapikusajuramega.pdfIn PDF document text
- http://autocredit.moscow/obras_literarias_renacimiento_espaolrdfbb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388037/normal_604d1a6dd56c3.pdfIn PDF document text
- http://m-laskin.ru/vurawe20qfs.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/fc62a21e-eea9-4219-9ebc-1afc9eb781f7/what_are_the_main_theories_of_social_change.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/169a72b4-daea-443f-8029-f7f0e54bc569/deborovafumafipijas.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bb5e896e-c857-4076-8c4c-5a2d7cf12ae6/25405496196.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/11b686bd-c66a-4783-9aed-12d1f627112b/all_races_dnd_5e_chart.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5f5ecb38-100c-48e0-838b-931a91e9db12/11038533022.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_off0000e4ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4FF | 5444 bytes |
SHA-256: 0b99648ae8be0eb05ecca87d379d7ee77318956576aacc879200b3990a956d75 |
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font_01_sfnt_off0000f7a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7A7 | 10964 bytes |
SHA-256: a5484fb998af0f53d395e90d6a6e76e5ead07c5444a6818b6c14296d1e4934e3 |
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