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 an ML classifier indicated a high probability of maliciousness. Numerous heuristics indicate the PDF functions as a link farm, directing users to various disposable domains and compromised WordPress uploads. The embedded URLs, such as 'https://synerhu.ru/uplcv?utm_term=how+do+you+reset+a+motorola+phone', suggest a phishing or social engineering lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://synerhu.ru/uplcv?utm_term=how+do+you+reset+a+motorola+phone PDF link annotation
- https://middletonchambers.com/ckfinder/userfiles/files/6884839197.pdfIn PDF document text
- http://grotech.in/userfiles/file/94951753707.pdfIn PDF document text
- http://nickelsgrafikdesign.de/ckfinder/userfiles/files/wewigefivup.pdfIn PDF document text
- http://e-cluny.cz/UserFiles/file/54787145110.pdfIn PDF document text
- http://ordineveterinarireggioemilia.it/userfiles/files/54196339497.pdfIn PDF document text
- http://familiegravesen.dk/userfiles/file/xowexo.pdfIn PDF document text
- http://i-tos.com/userData/board/file/xomedewe.pdfIn PDF document text
- http://salukool.ee/upload/userfiles/file/72880142858.pdfIn PDF document text
- http://gewald.ru/content/Files/zilovuruviwebolafupu.pdfIn PDF document text
- https://dongcohonda.com/userfiles/file/jurubikemuvuroguxu.pdfIn PDF document text
- https://yumasri.com/assets/ckfinder/userfiles/files/vujabepazumeloda.pdfIn PDF document text
- http://wish-pharma.com/upload/files/69558064600.pdfIn PDF document text
- https://viktorina.ledoritulys.lt/files/93548873529.pdfIn PDF document text
- https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/0b09740782d65ab77b82de5e1218ab7e/83140396788.pdfIn PDF document text
- http://sage-chem.com/image/files/20210911_220452.pdfIn PDF document text
- http://gelikonline.ru/content/Files/71270481616.pdfIn PDF document text
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614351af8cabd---nefokogovefofemegido.pdfIn PDF document text
- http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/1613c81d96229b---letoremumi.pdfIn PDF document text
- https://adetexfoamgroup.centralcms.cloud/galeria/files/87521683420.pdfIn PDF document text
- http://osheamaloneynylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/maxegalerosov.pdfIn PDF document text
- https://taichielite.com/louis/taichi/ckfinder/userfiles/files/84081811946.pdfIn PDF document text
- http://leasingtowers.com/ckfinder/userfiles/files/90574907329.pdfIn PDF document text
- https://groupekineconcept.com/userfiles/file/bisawif.pdfIn PDF document text
- https://theptaynam.vn/upload/files/wixonebemukiwod.pdfIn PDF document text
- https://tabularasa.lv/sites/tabularasa/uploads/documents/files/73278078956.pdfIn PDF document text
- http://teakdeck.pl/files/file/99900422192.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_off0000dd4a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD4A | 18692 bytes |
SHA-256: ae38b1d083e1b874173139c08f0c0e2fa4d5ffd42ecf843afd369ac0eee12245 |
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font_01_sfnt_off00010d2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D2F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012546.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12546 | 10856 bytes |
SHA-256: f1feb0ffe7c352456ad20f129bea64e642f77f208f2f514218841e7a408eee8a |
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