MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and link farms strongly suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://irlanc.ru/uplcv?utm_term=matrices+and+tensors+in+physics+by+aw+joshi+pdf PDF link annotation
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bb15288f42---julekitugukijase.pdfIn PDF document text
- http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/815m9j5f7r31onl98no9h3qk50/30025509472.pdfIn PDF document text
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abeebf68eb6---12967768009.pdfIn PDF document text
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/16085be08dd3b6---58917562318.pdfIn PDF document text
- http://xn--2vxr09c6mc.tw/CKEdit/upload/files/jabekegenazedemu.pdfIn PDF document text
- http://vejwun.cz/images/lenodose.pdfIn PDF document text
- https://vietnaminsight.biz/ckfinder/userfiles/files/demibe.pdfIn PDF document text
- https://rybczewice.pl/userfiles/file/71399006425.pdfIn PDF document text
- http://guilfordvikingsclassof81.com/clients/4/47/479b0a304b4cdce99dfe3eda73a59016/File/losekukidugomepegowija.pdfIn PDF document text
- https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/f958faa64a293ab3ae05194f68064355/ribekimalojideguse.pdfIn PDF document text
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/e095d24e2b3363ebf29ae5fc7158c2d4/33284400562.pdfIn PDF document text
- https://diaochue.vn/userfiles/file/89907270505.pdfIn PDF document text
- https://barcelonacentremedic.cat/files/galeria/files/zigebibazabafarozubuvigi.pdfIn PDF document text
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/d9e478fa6c4740dbabeceafdf489591c/gilenegusola.pdfIn PDF document text
- http://yanartextil.com/firma/files/27052722093.pdfIn PDF document text
- http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609e13756eef3---38848678275.pdfIn PDF document text
- http://kpotplace.com/uploads/files/11287899232.pdfIn PDF document text
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7bc9237040---bulek.pdfIn PDF document text
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160882c0021f35---42400875324.pdfIn PDF document text
- http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/731a9932815db10889f68adb466d6b28/76569114617.pdfIn PDF document text
- https://prokoncept.hu/admin/blogfck/image/file/66285747940.pdfIn PDF document text
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c02e9584335---39842082277.pdfIn PDF document text
- http://bigandtallking.com/userfiles/file/37027297892.pdfIn PDF document text
- http://dansensvenner.dk/imagesfile///latosusozuzig.pdfIn PDF document text
- https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/6d2b304dc76d9b1bf74bf3bca64b9ca2/novemumusudil.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_off0000c3f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3F9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dc0b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC0B | 15520 bytes |
SHA-256: bf567f10409fc98f0dcf013c35cca3208552a2c380c3700c1e3ae0a57450db7e |
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font_02_sfnt_off0001038f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1038F | 11136 bytes |
SHA-256: a6ae884fe11aa470199bf192381fd4ecce564a1c0053045fa9ae16c2083e1ae4 |
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