MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple compromised or disposable hosting sites, including URLs containing 'utm_term' parameters suggesting phishing or SEO manipulation. The presence of numerous external URIs and a link farm structure points towards an attempt to redirect users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
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=dream+talk+recorder+apk PDF link annotation
- https://jin-hung.com/userfiles/file/24110217546.pdfIn PDF document text
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1613a407f9c57a---zugumenatakipemekuli.pdfIn PDF document text
- https://hsse.hssanesteban.cl/files/gefimidetuguwokuwaresig.pdfIn PDF document text
- https://dursunguney.com/userfiles/files/rubuselepowoxokase.pdfIn PDF document text
- http://clinicaveterinariagussago.com/userfiles/files/velujadok.pdfIn PDF document text
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613edecf8d1f9---99566311693.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/ukt8rmaa9gk0gt0sd8dbelher6/75666419398.pdfIn PDF document text
- http://studiorumeo.it/userfiles/files/48964356795.pdfIn PDF document text
- http://xn--80aaeiengkwpz6p.xn--p1ai/pub/file/tezijijadifegutaferewavu.pdfIn PDF document text
- http://molenat-energies.fr/molenat.com/images/editor/file/sopili.pdfIn PDF document text
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613d7e8ce698a---14633659078.pdfIn PDF document text
- http://xn--22cjbbm2eyae3ehabdb4kqdtae3dxnnc1fhf.com/user_img/files/58228264587.pdfIn PDF document text
- http://urjabatteries.in/userfiles/file/disivekoled.pdfIn PDF document text
- http://circolonauticofavignana.it/userfiles/files/femixuwujexanabi.pdfIn PDF document text
- http://work4shop.cz/userfiles/file/tebimoxufemusamugova.pdfIn PDF document text
- http://barahi.com/assets/userfiles/files/towikezukukevoridosimix.pdfIn PDF document text
- https://festival.bg/fckeditorfiles/file/pulivozugowax.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/f004a9ff852c31b90c44bfc254484489/rigegodirovojagateven.pdfIn PDF document text
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/aps1iv5qc22thetm5cb966roso/luvisepat.pdfIn PDF document text
- http://dworbieland.pl/userfiles/file/2719484246.pdfIn PDF document text
- http://architettodrabeni.it/userfiles/files/zesameviwugeje.pdfIn PDF document text
- https://netron.pt/app/webroot/media/files/22757545773.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16133d5b52b37b---vusaxajidutufeva.pdfIn PDF document text
- http://kfoodntea.com/dataroom/file/21784712469.pdfIn PDF document text
- http://akvari-um.ru/userfiles/file/41809005682.pdfIn PDF document text
- https://holycrosshealthcare.com/userfiles/files/22082516469.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_off0000c423.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC423 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dc3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC3A | 10404 bytes |
SHA-256: ea7076d614710e11978eb9305412f6b5fe78dd6a5e36486a458f5b0d5f909b8d |
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font_02_sfnt_off0000f3c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3C9 | 17128 bytes |
SHA-256: 396ce92b511a994dc9a0dbba109e85317dc5d43abaf6c034fb057d787cfdb365 |
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