MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs that form a link farm, many pointing to compromised CMS upload directories or disposable hosting, suggesting a phishing or malware distribution scheme. The PDF structure and embedded content are consistent with attempts to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://irlanc.ru/uplcv?utm_term=best+android+phone+2021+in+bangladesh PDF link annotation
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161381d2770802---fabatuluramikarevijovobit.pdfIn PDF document text
- http://185.33.116.145/~acus01/upload/files/8433674846.pdfPDF link annotation
- https://anpheatingandac.com/nbloom/fckuploads/file/68122644406.pdfIn PDF document text
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16132ac74ac736---25447535668.pdfIn PDF document text
- http://crosswaysrecruitment.com/userfiles/file/kisirevotesemu.pdfIn PDF document text
- https://phukienbep.net/media/files/43838497306.pdfIn PDF document text
- http://bygreenpure.com/userfiles/file/tunuguto.pdfIn PDF document text
- http://teraval.cz/res/file/29951498794.pdfIn PDF document text
- http://jayeonrak.com/upfile_editor/2021/files/34253734708.pdfIn PDF document text
- http://mygrind.ie/userfiles/file/wutatojexemibit.pdfIn PDF document text
- http://www.s-prom.si/fileupload/file/rupivududadepebavu.pdfIn PDF document text
- http://www.lovebliss.tw/UserFiles/files/84522043938.pdfIn PDF document text
- http://flyingkirin.com/uploadfiles/file/040426309202.pdfIn PDF document text
- http://epwuae.com/userfiles/file/ludowajokoxaxazanexar.pdfIn PDF document text
- https://bustotoronto.com/userfiles/file/pejananarulexobibiketam.pdfIn PDF document text
- http://car-zone.sk/data/data/file/jotutotuteluzagalasaboki.pdfIn PDF document text
- http://www.optimizecost.com/admin/ficheros_fckedit_subidos/wojomilomebejawikomo.pdfIn PDF document text
- http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c454cb358e---suwej.pdfIn PDF document text
- http://kernenshepler.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wumelejobubituvu.pdfIn PDF document text
- http://4998horo.gmmwireless.com/contents/files/71434554759.pdfIn PDF document text
- http://forumts.com/ckfinder/userfiles/files/98652179270.pdfIn PDF document text
- https://e-uchebnici.com/img/file/12427038512.pdfIn PDF document text
- http://joesservicecenternj.com/userfiles/files/25569099802.pdfIn PDF document text
- http://supair-lux.hu/ckfinder/userfiles/files/rigegi.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_off0000d1a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1A8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e9bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9BF | 11160 bytes |
SHA-256: 04ad52b54621125d9c0dc0bb7931f94fc8000068ffeffcbf1d0d31ec2786aa8e |
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font_02_sfnt_off00010362.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10362 | 18096 bytes |
SHA-256: 308d881e12380d5078c72a769bfde60ba95d8ce07a41e2eb8d3c2cdd2e89dadc |
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