MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is https://dafemum.ru/strik?utm_term=does+stefan+end+up+with+elena+in+the+books. The document body is heavily obfuscated and appears to be a lure, likely for phishing or to download further malicious content. No scripts were extracted, but the presence of malicious links strongly suggests a phishing or malware delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://dafemum.ru/strik?utm_term=does+stefan+end+up+with+elena+in+the+books In PDF document text
- https://s3.amazonaws.com/tiduro/4019746846.pdfIn PDF document text
- https://cdn.sqhk.co/zakoduba/d7mjeMZ/43231122194.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4377931/normal_5fccd23cdd7ff.pdfIn PDF document text
- https://cdn.sqhk.co/rotonoba/a147xuZ/zixiwonopif.pdfIn PDF document text
- https://momuxubodi.weebly.com/uploads/1/3/1/3/131379397/3781834.pdfIn PDF document text
- https://jowukore.weebly.com/uploads/1/3/4/8/134870909/f7d2b00.pdfIn PDF document text
- https://s3.amazonaws.com/nefomojuwet/venta_airwasher_cleaning_solution.pdfIn PDF document text
- https://s3.amazonaws.com/xixonu/how_to_write_a_good_romantic_novel.pdfIn PDF document text
- https://cdn.sqhk.co/romilononove/IjdOzXm/diamond_minecraft_sword_make.pdfIn PDF document text
- https://cdn.sqhk.co/sezogitov/gheKgcK/vozesugefasegeki.pdfIn PDF document text
- https://jironomazubem.weebly.com/uploads/1/3/5/3/135393756/befafebawulab.pdfIn PDF document text
- https://s3.amazonaws.com/vexosafugunu/29516038475.pdfIn PDF document text
- http://xixofafil.medianewsonline.com/tafsir_al_quran_indonesia.pdfIn PDF document text
- https://cdn.sqhk.co/lepezusija/aNgfKia/ruxati.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382961/normal_6030f6023c31a.pdfIn PDF document text
- https://s3.amazonaws.com/vifusupegiza/peoples_sexiest_man_alive_2018_list.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4408862/normal_5fc6dea9e9f7e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://d5e9a058-cbdc-4968-ba72-30cdbf1e36a3.filesusr.com/ugd/9cfd0a_d1bf31a5fb32460f93eb1e3c5b732781.pdf?index=trueIn PDF document text
- https://f85e9a30-dbb9-40fd-a66d-53bd7daafe07.filesusr.com/ugd/1b9faa_e102b35c5bcb4810a02e539f1aaa46f1.pdf?index=trueIn PDF document text
- http://kofepiropi.onlinewebshop.net/bowepasotokova.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_off0000ea26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA26 | 5328 bytes |
SHA-256: 6cd4be2a8f97508545ce32613dd1fa25f4e5dcbcecde5375b8e0a71f635afe19 |
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font_01_sfnt_off0000fc5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC5D | 10520 bytes |
SHA-256: ec851ebefc4763717b840cbb48d87ec1a3fe8d1431b18693a50875aa4562c685 |
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