MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of numerous external URIs, many hosted on disposable domains and configured as a link farm, strongly suggests a phishing or malware distribution campaign. The 'urgency lure' heuristic further supports the phishing pretext, aiming to prompt immediate user action.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://queure.ru/uplcv?utm_term=download+a4a+app PDF link annotation
- https://congchungnguyenlieu.vnpec.xyz/uploads/files/xonugesadumebo.pdfIn PDF document text
- https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/0b10a827872fc0ae991196166f0e2b3c/4722470585.pdfIn PDF document text
- http://chayka-svg.ru/files/27082698256.pdfIn PDF document text
- https://wupaojichangjia.com/d/files/janopakelumi.pdfIn PDF document text
- http://www.kowel.com/ckfinder/userfiles/files/1630533410.pdfIn PDF document text
- https://calson.garment-pro.com/ckfinder/userfiles/files/kuviruwudibakepotuvag.pdfIn PDF document text
- http://alfatreyd-mebel.ru/archive/images/file/sagutamakij.pdfIn PDF document text
- http://opusincertum.it/userfiles/files/79907746831.pdfIn PDF document text
- http://tkhomedeco.com/assets/uploads/ckedit/files/20210905113100.pdfIn PDF document text
- http://hoangduy.vn/vn/files/lanafu.pdfIn PDF document text
- https://dollarplus98.com/images/upload/files/53885415690.pdfIn PDF document text
- http://urbancollab.com/userfiles/Proj_Name/files/depusigobudobotokewukudo.pdfIn PDF document text
- https://autoandtruckrepair.net/nbloom/fckuploads/file/govivodivak.pdfIn PDF document text
- http://ansatrans.ru/admin/ckfinder/userfiles/files/33088714703.pdfIn PDF document text
- https://whereestar.com/marinarubicon/admin/file/86570421380.pdfIn PDF document text
- https://zagi.hr/files/47217105485.pdfIn PDF document text
- https://newtop-eg.com/userfiles/file/gomanipigub.pdfIn PDF document text
- http://ros-audit.com/i/up/file/46117213539.pdfIn PDF document text
- http://sherwoodonionfestival.com/ckfinder/userfiles/files/44015697016.pdfIn PDF document text
- http://sinoorchids.com/image/file/foxunawalum.pdfIn PDF document text
- http://gianenricofabro.com/userfiles/files/dakufedamatifigamapebizik.pdfIn PDF document text
- http://wadsoda.com/UserFiles/File/86291063594.pdfIn PDF document text
- https://gitedu.in/ckfinder/userfiles/files/mafikomuxodu.pdfIn PDF document text
- http://writtenmail.com/upload_images/file/sofaburikiwolizulorivud.pdfIn PDF document text
- http://zjnep.com/ckeditor/ckfinder/userfiles/files/limev.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_off0000db92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB92 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f3a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3A4 | 17620 bytes |
SHA-256: 8aa79a6ae9ba701fc1c311b07fd8363671487f3074a60ceac7aababb68f22a72 |
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font_02_sfnt_off0001218e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1218E | 9960 bytes |
SHA-256: ee624aebeb00ad1d8eab640e8d1db429b0d2e15d1130215aa357fa3ccc649994 |
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