MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicate a high probability of maliciousness. Numerous heuristics indicate the PDF is a link farm, with many URLs pointing to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs, such as 'https://crewmak.ru/uplcv?utm_term=mp4+converter+yt', likely serve as lures to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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=mp4+converter+yt
- http://milwaukee.center/userfiles/file/rixurow.pdf
- https://www.blondel-bois.fr/ckfinder/userfiles/files/rixipejow.pdf
- http://brainbond.ro/userfiles/file/rupumolunadomerutaxeduzer.pdf
- http://viprealestatebrokers.com/userfiles/files/baxabaxixekepabed.pdf
- http://abwpetersburg.com/uploads/files/vixafap.pdf
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/161352e6e884fa---41919809288.pdf
- https://onutglen.com/caningest/images/file/tubalopenasu.pdf
- http://lubrifianti-auto.ro/files/file/47763842774.pdf
- https://senegal4d.com/contents/files/zuzuzegelitilumunekagutez.pdf
- https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/454da1d417645d9ae7a31c88dd7a78ae/75072928395.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130dcb627be4---85077782398.pdf
- http://transportdiverse.com/uploads/files/1400282755.pdf
- http://gsxr.hu/userfiles/file/sabomorebuzisagabosu.pdf
- https://tonymusic.se/UserFiles/files/fopobonoxutolorola.pdf
- https://dhins.com/testingsites/advantage_aviation/assets/media/file/6591163076.pdf
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145760d320e7---wotopojepakusuf.pdf
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/1ocoo6o9qqntj6rpl88vhu4uc0/gomukivebedowex.pdf
- http://panziofabian.hu/fck_kepek/47095819486.pdf
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f05a987818---56897241220.pdf
- http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/161352391dd3b8---bimujurelorugubetale.pdf
- http://tenis-klubmoj.si/uporabnik/file/72751967537.pdf
- http://wedding-box100.com/uploads/files/202109181606008444.pdf
- http://lexprikson.com/admin/style/images/userfiles/file/vigibizilodozezez.pdf
- http://slovbau.sk/test/userfiles/file/pisej.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b064.bin673d1a46dcec1931a8a63d614bf0a0943bd93533ecfbc9da356f0cc60520680a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB064 | 10148 bytes |
font_01_sfnt_off0000c74a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC74A | 16792 bytes |
font_02_sfnt_off0000df5c.bin2f17753506288efed15de55563ba4a657c8dad733ca1c22f10d76cba7f694a08 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF5C | 15852 bytes |
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