MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links pointing to known malicious redirector infrastructure, specifically `https://dafemum.ru/123?utm_term=blank+calendar+template+2019+january`. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, contains metadata suggesting it is a template, which is a common lure for phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 5
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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 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/123?utm_term=blank+calendar+template+2019+january In PDF document text
- https://cdn-cms.f-static.net/uploads/4501495/normal_60bbe5ec3cea8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4406168/normal_60bed2d77bd0e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379038/normal_6049ea733203b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4406501/normal_602c7d1e24427.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4409610/normal_6004e45f7080f.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/8f1659b8-255d-441c-8851-188280e96033/greenworks_2000_psi_electric_pressure_washer_replacement_hose.pdfIn PDF document text
- http://pinurakus.pbworks.com/f/kefesugejo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f636722f-2c26-4168-b506-6dbe377c006a/butomaribawujidofibunu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f67341b6-8789-4322-b14a-e10af82988f7/64090918165.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ab39f216-3e98-4399-86e0-36fc4ed33509/acido_fosforoso_estructura_de_lewis.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7b243d9f-dfa4-4327-a320-347c753cedb6/ncert_maths_book_class_6_chapter_1_solutions_in_hindi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4f46c078-ed1a-4646-91a6-fba82139d5fe/tikedigaremutetaf.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1bc3abff-5141-428f-ac27-ef9fc8027f16/97997526396.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/de340b40-4447-4b10-bbd1-66ca4ca2d77f/dawimovidu.pdfIn PDF document text
- http://jetubabup.pbworks.com/f/neutrino_pockybop_apk.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f2b937db-5dcc-4a8f-85b8-81eeceaca1ec/pearl_of_great_price_kjv.pdfIn PDF document text
- http://xalanupuzewo.pbworks.com/f/93425515896.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6d0ac692-d705-47a5-b470-32a20837e585/barrons_ap_environmental_science_2020.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/030d46a4-3254-4df3-b569-352cf411786c/pakonajigedoxipefusupata.pdfIn PDF document text
- http://guwodav.pbworks.com/w/file/fetch/144894657/51662146041.pdfIn PDF document text
- http://mamejoniza.pbworks.com/w/file/fetch/144737892/51389408671.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_off0000e9b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9B9 | 5816 bytes |
SHA-256: a4132c63bfa4edc8760102a15fe582679ad5a28870d8432958c9cb7e4cf10cfb |
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font_01_sfnt_off0000fd87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD87 | 10360 bytes |
SHA-256: 33217b1c523a9675dbadd1fa97b4cd365754afce57e87bdeee298b99273cc196 |
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