MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous external URLs, suggesting it functions as a link farm or redirection mechanism to potentially malicious sites. The PDF structure and embedded URLs point towards a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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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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://pistant.ru/uplcv?utm_term=types+of+suspension+system+pdf PDF link annotation
- http://bainihu.com/upfiles/editor/files/wukuvaz.pdfIn PDF document text
- https://unicon-msk.ru/data/files/kilazigufiwilekalamopako.pdfIn PDF document text
- https://hidropomp2008.com/uploads/userfiles/file/75570127879.pdfIn PDF document text
- https://aleemanschools.org/userfiles/file/dodexox.pdfIn PDF document text
- https://fairtradeportal.pl/userfiles/file/96979758509.pdfIn PDF document text
- http://a-pluset.com/userfiles/92849955965.pdfIn PDF document text
- http://toyotarent.kr/FileData/ckfinder/files/20211001_8DE19CD670E7597B.pdfIn PDF document text
- http://toanlinh.vn/upload/files/79292667808.pdfIn PDF document text
- https://ferest.ro/imagini_ws/safajekebivuma.pdfIn PDF document text
- http://bulk-supplies.com/userfiles/file/bigafa.pdfIn PDF document text
- http://aci-immobilier-douai.fr/userfiles/files/77575363794.pdfIn PDF document text
- http://upservice.expert/admin/ckfinder/userfiles/files/2018348707.pdfIn PDF document text
- http://vtvxm.vn/userfiles/file/guwanenurobofaxujepud.pdfIn PDF document text
- http://www.hangmandigital.com/files/file/35779143483.pdfIn PDF document text
- http://xn--b1adbbbaeqjtsflbfms0e.xn--p1ai/pict/file/75926399658.pdfIn PDF document text
- http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/duzerupapimaf.pdfIn PDF document text
- http://ctnphrae.com/ckfinder/userfiles/files/kolege.pdfIn PDF document text
- https://vivaldiroberto.com/img/files/mediafiles/file/bebedaguvotupuka.pdfIn PDF document text
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140a1c49b6ad---61185875505.pdfIn PDF document text
- https://rimsball.com/ckfinder/userfiles/files/gulog.pdfIn PDF document text
- http://accessprecision.com/userfiles/file/66004722310.pdfIn PDF document text
- https://okul.gencreklamajansi.com/uploads/files/fivuvoromiwexezixa.pdfIn PDF document text
- https://generalaudit.pl/eurostyl/photos/file/xozozubobogutefojelogefo.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_off0000c723.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC723 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000df35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF35 | 16488 bytes |
SHA-256: 5600c269f4978152ca556c477e2838871866151041be9e8cf64d91e95c98c15e |
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font_02_sfnt_off00010968.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10968 | 10528 bytes |
SHA-256: 7186a66235a0b4d1ab97e0f82cc7efffe2d9358d43e6e8c32d24e4faa97f568b |
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