MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicated a high probability of maliciousness. Heuristics identified it as a link farm pointing to compromised WordPress uploads and disposable hosting, with external URIs like https://crysiq.ru/uplcv?utm_term=bobby+hd+apk. The document body is heavily obfuscated and unreadable, suggesting it's designed to hide its malicious intent.
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://crysiq.ru/uplcv?utm_term=bobby+hd+apk PDF link annotation
- http://lblussana.it/images/file/duwetugodoke.pdfIn PDF document text
- http://uekekb.ru/!upload/files/90436487962.pdfIn PDF document text
- https://bushregenerators.biz/userfiles/files/10937642550.pdfIn PDF document text
- http://mayingiabao.com/upload/files/22262362791.pdfIn PDF document text
- https://demoepaper.104portal.com/upload/serback/files/20210925074812.pdfIn PDF document text
- https://kvzriu.org/images/file/5276864929.pdfIn PDF document text
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/16139f4dbbedab---5007399598.pdfIn PDF document text
- http://dnt-mayak.ru/content/File/sixepubekadusaj.pdfIn PDF document text
- http://www.darvidproperty.com/news/file/wamulawomuzoluwima.pdfIn PDF document text
- https://aljazeerahpetroleum.ae/userfiles/files/donozudinegit.pdfIn PDF document text
- http://fazendasaojudastadeu.net/fotosempresa/files/megirinero.pdfIn PDF document text
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161400794b47c4---41143561444.pdfIn PDF document text
- http://ccadl.com/files/20210912171934.pdfIn PDF document text
- http://thunderstar.cn/userfiles/file/20210906124835622991283.pdfIn PDF document text
- http://vladekoservis.ru/files/74714324514.pdfIn PDF document text
- https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1614fb24e69229---zenipojaviwelide.pdfIn PDF document text
- https://surupaceanu.ro/ckfinder/userfiles/files/48532134238.pdfIn PDF document text
- http://sladkiy-ostrov.ru/userfiles/files/25940360468.pdfIn PDF document text
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/2998adbfe82816140ca7319c5880176b/xebigubogejivubetoxi.pdfIn PDF document text
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/80b5vhp6ludvc99pbnpurk8gq7/viroju.pdfIn PDF document text
- http://www.fdconsult.qa/public/uploads/cms_files/vadoriduvek.pdfIn PDF document text
- http://gamax-moto.cz/data/dokumenty/kugodutisirojakajotolusa.pdfIn PDF document text
- https://coffeetuanvang.com/Images_upload/files/zuwuvaki.pdfIn PDF document text
- http://www.maderas-navarro.com/ckfinder/userfiles/files/losejufebaribidog.pdfIn PDF document text
- http://vit-physio.de/file/51608831376.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_off0000b341.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB341 | 10148 bytes |
SHA-256: 0ca3e43f4fb007570c7baead5c222317012acfa7f24197ab27cfed2044ce59f2 |
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font_01_sfnt_off0000c9d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9D6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e1e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1E8 | 15392 bytes |
SHA-256: 0e8640fbf38e94cb50f7e431e2b4ab39327dc1d0832a244da98090c984e00192 |
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