MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://coutleelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/9082764124.pdf In PDF document text
- http://ukwoodrecycling.com/userfiles/files/81417299272.pdfIn PDF document text
- http://forter.vn/hinhanh/file/dobuvem.pdfIn PDF document text
- http://albino-pitti.com/pub_img/file/netumiwanakigeruxotigawo.pdfIn PDF document text
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/pjo6f44dmml01dms3nih536p0p/18913308117.pdfIn PDF document text
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072b3774ce96---94163889407.pdfIn PDF document text
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160c41742d7ede---kulezorozototove.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c2944d02ff6---lexosinukamolutuxo.pdfIn PDF document text
- https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/68376d4885d8fb5e5abe3c21bf3d9208/299260008.pdfIn PDF document text
- https://apgr.eu/UserFiles/file/xobevodokekegezexe.pdfIn PDF document text
- https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/411ec65243867f4ddc4d46c3d6a3175a/fifamud.pdfIn PDF document text
- https://a1-recruitment.fr/v2011/Files/fck_upload/file/76191290074.pdfIn PDF document text
- http://ifa-astrologie.de/userfiles/file/soguneva.pdfIn PDF document text
- https://europacreativaeuskadi.eu/files/galeria/files/sazetapirewibexis.pdfIn PDF document text
- http://year-c.com/upload_fck/file/2021-6-4/20210604183114772864.pdfIn PDF document text
- https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/a3df4df2c294593483d9d32007224599/pofojozutirugotaxo.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a37d16d2683---bosijamezafudupokudod.pdfIn PDF document text
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607266a714b95---20587115090.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16076ac875404f---wexurabuv.pdfIn PDF document text
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/905d7d461278cd8a1d497b2c9fa09f93/jowixibulogovikujuramij.pdfIn PDF document text
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/f523916716dceb8b47d8ae61ae2413d0/vujosodij.pdfIn PDF document text
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160bda48294ea9---xopifuwufolozuvubafeki.pdfIn PDF document text
- https://hagepoorter.be/files/files/gozomolokulosap.pdfIn PDF document text
- http://truhlarstvisollner.cz/data/file/32232895280.pdfIn PDF document text
- https://ph2020.org/FCKeditor/file/wetupapovob.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=cbse+class+12th+biology+important+topicsPDF 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_off0000f4b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4B4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010cc6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CC6 | 17088 bytes |
SHA-256: d9d71b94d9db9d2d9a05144df1c3db1ce843fe75db962f506b20cbb1445a973c |
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font_02_sfnt_off00013974.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13974 | 11276 bytes |
SHA-256: 0a439e9562a5b9f83c6278be84c6d9c89430044cb4984ae864ae0633a1da4360 |
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