MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF employs an image-only lure, a common tactic for phishing or malware distribution, indicated by the PDF_IMAGE_LURE heuristic. It contains numerous embedded URLs, many of which are part of a link farm on disposable hosting, suggesting a malicious intent to redirect users. The ML classifier and ClamAV detection strongly support its malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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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External URI info PDF_URIPDF contains an external URL action
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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://infrive.ru/uplcv?utm_term=c%2B%2B+primer+5th+edition+pdf+free+download PDF link annotation
- https://himalmanpower.com/ckfinder/userfiles/files/94107335558.pdfIn PDF document text
- http://talesma.com/E/file/xilik.pdfIn PDF document text
- http://woodlandhills.ilovepokebar.com/uploads/files/somuzazew.pdfIn PDF document text
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614905fdef98a---56626326607.pdfIn PDF document text
- http://szigmetal.hu/editor_up/siwovovukusi.pdfIn PDF document text
- https://herfection.herfection.tw/upload/ckfinder_temp/files/20210907181439.pdfIn PDF document text
- http://beiks.info/public/file/kobodumejesutimuvineb.pdfIn PDF document text
- http://the100voicesofgospel.ch/fichiers/newsletter/file/42583087466.pdfIn PDF document text
- https://shen-su.eu/gfx/userfiles/files/jevofunolipifoferaje.pdfIn PDF document text
- http://architettotamborra.eu/userfiles/files/diveduvutu.pdfIn PDF document text
- http://mobil-tech.com/files/6308836504.pdfIn PDF document text
- https://bibonatura.hu/ckfinder/userfiles/files/58716166957.pdfIn PDF document text
- http://cyklo-sport-servis.cz/UserFiles/File/98123791337.pdfIn PDF document text
- http://positiveforce.in/uploads/files/miroberomugowudej.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1614a21d911d48---tifizuwomikajobefeb.pdfIn PDF document text
- http://teplolux72.ru/upload/file/pegidijumelumulejigazi.pdfIn PDF document text
- http://flapboxes.custompackageboxes.com/userfiles/files/zitizeguna.pdfIn PDF document text
- http://billagelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xudaj.pdfIn PDF document text
- http://associatedreclaimed.com/userfiles/files/22871537386.pdfIn PDF document text
- http://xn----9sbbnbtte4cyg.xn--p1ai/ckfinder/userfiles/files/zomudebexixogisifinumu.pdfIn PDF document text
- http://etalentlink.com/uploadfile/file///2021092109564441.pdfIn PDF document text
- https://economiadecomunion.net/ckfinder/userfiles/files/gejele.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000abfa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xABFA | 10848 bytes |
SHA-256: d09e5dc2b9b886c935b68e6ce2b047baaba4677941250998c96a15d2d638e89d |
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font_01_sfnt_off0000c4e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4E8 | 14476 bytes |
SHA-256: 3949ec0346f347cecc0b252cf368535330cf2cb13dc67055f092401c27ea303e |
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font_02_sfnt_off0000e936.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE936 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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