MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that form a link farm, directing users to potentially compromised WordPress uploads and disposable hosting sites. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may instruct users to open a password-protected archive, a common tactic to bypass gateway security.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://inwebjor.ru/uplcv?utm_term=forgot+my+mobile+pattern PDF link annotation
- http://steakclubhn.com/campannas/file/tozekugoje.pdfIn PDF document text
- http://tzoetemondje.be/uploads/files/botaretetujapogetefu.pdfIn PDF document text
- http://avision-italia.com/userfiles/files/1948637023.pdfIn PDF document text
- http://xn--80aaffebba2apgigwiiececnggk9e4k.xn--p1ai/pict/file/24988921753.pdfIn PDF document text
- https://weeb.nu/userfiles/file/fajulumaranutafazen.pdfIn PDF document text
- http://moscowprice.com/content/xuploadimages/file/fepomudotufujigamus.pdfIn PDF document text
- http://obasekiestates.com/UserFiles/file/basojanunolufotemufexibif.pdfIn PDF document text
- http://coomargroup.com/ckfinder/userfiles/files/48563791054.pdfIn PDF document text
- https://mayxaydungthienlong.com/uploads/files/files/mawemolosij.pdfIn PDF document text
- http://airmon.hu/images/files/74400578562.pdfIn PDF document text
- http://sino-web.net/filespath/files/20210902090514.pdfIn PDF document text
- http://meghdoothsuzuki.com/uploads/93982656356.pdfIn PDF document text
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/u51p3epjtrrn8q4ib6vmdp0jfn/43388111693.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/161422691bc7da---21728235555.pdfIn PDF document text
- https://nhahangbienhaitien.com/uploads/files/dajabadanen.pdfIn PDF document text
- http://studioambienteterritorio.it/userfiles/files/17221401251.pdfIn PDF document text
- http://adaviestransportltd.com/userfiles/file/41730265692.pdfIn PDF document text
- http://liveisagenix.com/ckfinder/userfiles/files/kakexijejox.pdfIn PDF document text
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613d4724cc9b7---19101398492.pdfIn PDF document text
- http://polyacer-ecp.com/userfiles/files/20210906_093405.pdfIn PDF document text
- http://euro520.net/userfiles/file/1631506085585742964.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_off0000cfe2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFE2 | 10660 bytes |
SHA-256: 68f2b9c4c0306a7f45b02e1b0551a321c1d5c955e6572d5d1cc473145f7608b0 |
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font_01_sfnt_off0000e80c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE80C | 16612 bytes |
SHA-256: 2f3f575b42a68ebcc0a674301d1cea44c181b0e9eeb41450cdae8f0ab05d16f8 |
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font_02_sfnt_off00011365.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11365 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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