MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected by ML classifiers and ClamAV as a malicious PDF. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or appear to be part of a link farm on disposable hosting. These links likely serve as a lure to redirect the user to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://guchen.ru/d/files/391545952.pdf In PDF document text
- http://mixmarketing.vn/upload/fck/file/jitube.pdfIn PDF document text
- https://plantbiochem.com/ckfinder/userfiles/files/togolumozuzej.pdfIn PDF document text
- https://safecampus.in/cmsCart/upload/file/fejerato.pdfIn PDF document text
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1614073899056a---joxejoromubagufop.pdfIn PDF document text
- http://smflow.in/admin/uploads/file/41825890279.pdfIn PDF document text
- https://ipekyolumedya.com/resim_galeri/file/98032432889.pdfIn PDF document text
- http://szjg.hu/images/file/wegugoxokofinigajobi.pdfIn PDF document text
- https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/ef6bbf865ef58d910a58c53c65e12edf/xibuta.pdfIn PDF document text
- https://natatourism.com/userfiles/files/87763130862.pdfIn PDF document text
- https://alarouba.com/ckfinder/userfiles/files/96260555796.pdfIn PDF document text
- https://siahotel.com/userfiles/files/23189337301.pdfIn PDF document text
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/16141b437a34ba---paxosivunitukegibapipof.pdfIn PDF document text
- https://cortopolis.ar/userfiles/file/sasezeberugerodazijaj.pdfIn PDF document text
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1614eb8f7a5328---gagomurip.pdfIn PDF document text
- http://hzzxtl.com/UploadFile/file/20210922181656767.pdfIn PDF document text
- http://adanamega.com/userfiles/file/65756453361.pdfIn PDF document text
- http://bakefruit.com/uploads/files/202109090445108653.pdfIn PDF document text
- https://papiratisk.cz/soubory/45726980257.pdfIn PDF document text
- http://portalinmobiliario24.com/uploades/fckeditorfile/tupozipoziwokefilolejal.pdfIn PDF document text
- http://arenda-v-novosibirske.ru/ckfinder/userfiles/files/32432463264.pdfIn PDF document text
- https://angel-juicer.com/FileData/ckfinder/files/20210925_1AD27C21B290BDE9.pdfIn PDF document text
- https://chaletsuenodesol.de/files/poluvidaxazugozazetemuj.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=text+scanner+androidPDF link annotation
- 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_off0000b1f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1F4 | 10384 bytes |
SHA-256: 0e73c1021cc37ad3f22cd43b00e78f6b6287a0927f024774590f862d8ee1c1e7 |
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font_01_sfnt_off0000c9a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9A7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e1b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1B9 | 17400 bytes |
SHA-256: 3b787f910f11ed2105b0a9b20680018a188c39e84a2d7b1294a82f0767a9d5f5 |
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