MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs that point to compromised websites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of `utm_term` parameters in some URLs indicates a phishing or social engineering lure.
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://crewmak.ru/uplcv?utm_term=please+allow+usb+debugging+on+your+mobile+device PDF link annotation
- http://zulassungsdienst4you.de/bilder/file/lafitoke.pdfIn PDF document text
- http://www.enredmail.com/templates/files/idCliente_/file/sarodinegudevelaw.pdfIn PDF document text
- http://cadelupo.it/userfiles/files/pegikitejizune.pdfIn PDF document text
- http://iuf.kr/pds_down/files/beriduru.pdfIn PDF document text
- http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/r1k2s4itehh8fhdb85vdcg1gud/fuzazarimajajitarozen.pdfIn PDF document text
- http://sirmamedia.com/ckfinder/userfiles/files/murefekobususu.pdfIn PDF document text
- http://gibisch.org/files/files/38685712192.pdfIn PDF document text
- https://tch.lu/files/files/loxidejadobor.pdfIn PDF document text
- http://poaglasses.com/uploads/files/202109010928068961.pdfIn PDF document text
- http://erago.cidees.com/uploads/files/29392027260.pdfIn PDF document text
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/6b73a0b125edcd1a8da1bd84d936f0ba/4506716820.pdfIn PDF document text
- http://farmandari-sarvestan.ir/images/news/files/51929647265.pdfIn PDF document text
- https://xn--atpta-nfb.lv/images/userfiles/files/rojuresit.pdfIn PDF document text
- https://taxforce.nl/userfiles/files/bedadamudasi.pdfIn PDF document text
- http://khachsansapa.vn/webroot/img/files/noraxabafevugesix.pdfIn PDF document text
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/38e04228e16d0b4e224ef1e87a64885e/vinamemuxesesifawubosig.pdfIn PDF document text
- http://kodemari.info/data/files/lewewusug.pdfIn PDF document text
- http://donghotam.com/luutru/files/tupogaforoguximetojogitog.pdfIn PDF document text
- http://thietbiantoanttk.com/uploads/files/52058873393.pdfIn PDF document text
- http://elitsatodorova.com/uploadfiles/file/32092969311.pdfIn PDF document text
- http://xn--80aiddhbkcq5bcaz.xn--p1ai/upload/files/gibanusitinepuwagujazini.pdfIn PDF document text
- https://palezieux.com/ckfinder/userfiles/files/gevibonikakavitojaw.pdfIn PDF document text
- http://flashdisplay.net/UploadFiles/FCKeditor/20210904042219.pdfIn PDF document text
- https://bikeid.net/ckfinder/userfiles/files/23974600407.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_off0000b581.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB581 | 11124 bytes |
SHA-256: 2e13db7c17f7c7e329a3c7bd4462744ba35da279a4d95ed6a27bdbd203d1a155 |
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font_01_sfnt_off0000cf4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF4E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e760.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE760 | 15676 bytes |
SHA-256: a4a2e67a22d1c5d8539a4392ed146ae4f6db075533ec9b47db33d8aa2c6083df |
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