MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as a malicious PDF by ClamAV and an ML classifier. It contains numerous embedded URLs pointing to various websites, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using numerous distinct hosts for a link farm, suggesting an attempt to manipulate search engine rankings or distribute malicious content. While no scripts were explicitly extracted, the presence of numerous external links strongly suggests a phishing or malware distribution vector, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://leavingcare3plus.ch/userfiles/files/kipovod.pdf In PDF document text
- https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/fg23b24f2pgrphj620hdm846p0/bikinizubivofog.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a27c10239b8---zipisogad.pdfIn PDF document text
- http://mjsolankifoundation.com/fck/imagesfile/kedogipaterawed.pdfIn PDF document text
- http://techbis.pl/files/file/72343923467.pdfIn PDF document text
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16083678d03c7f---gakijozexamarubarizesam.pdfIn PDF document text
- http://ms-krmelin.cz/app/webroot/files/files/ledejo.pdfIn PDF document text
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/c0b758f1a4344e2a858599a6eb39c550/42223093742.pdfIn PDF document text
- http://mindentudor.hu/userfiles/file/20980038816.pdfIn PDF document text
- http://www.dilipprabhavalkar.com/images/file/bifepakesopeguzunafedozi.pdfIn PDF document text
- https://www.truegridpaver.com/wp-content/plugins/super-forms/uploads/php/files/5bcb23d49226b8465579bcfb6fd20202/nosibelejefinujutiwu.pdfIn PDF document text
- http://hieuchuan.com/upload/files/mogusasoboteposa.pdfIn PDF document text
- https://mertlakustika.cz/images/pages/file/19132487646.pdfIn PDF document text
- http://ahcxdq.com/uploads/file/0701115624.pdfIn PDF document text
- https://www.latentoac.com/portal/wp-content/plugins/super-forms/uploads/php/files/tgcuqt0j7gipfrt1ugtve9t6b9/37629739809.pdfIn PDF document text
- https://chiataiec.com/userfiles/Proj_Name//files/95096462211.pdfIn PDF document text
- https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/3b2ddc63c11ef12b1ecc5e473c0c4a9b/raxixovusaxomusupevimagu.pdfIn PDF document text
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bdd6d5bdf8---xubofulopojobogonuwu.pdfIn PDF document text
- https://blueridgelightingandcontrols.com/wp-content/plugins/super-forms/uploads/php/files/75b8fc8ebd3d552d94bb54cf342d223e/tijaxupuvufifuzikazureba.pdfIn PDF document text
- https://liur-krd.ru/userfiles/file/noletavonurajuwifoka.pdfIn PDF document text
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/lmeu5mc76fasds5rs4jhvtjm0n/6902451679.pdfIn PDF document text
- https://hostingalani.com/calisma2/files/uploads/gawazadugifu.pdfIn PDF document text
- http://ekotronic.eu/files/file/24715119831.pdfIn PDF document text
- http://dangkykinhdoanhkiengiang.com/upload/ck/files/linigonosodomixukiberaxes.pdfIn PDF document text
- https://webshopplus.nl/app/webroot/files/userfiles/files/bakimive.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=mcgraw+hill+pride+and+prejudice+study+guide+answersPDF 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_off0000f5cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5CC | 11096 bytes |
SHA-256: 1935054e6dc5d01071d05cee0d42e43a46b79a34995dacb18b91344dd5a62d6d |
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font_01_sfnt_off00010f75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F75 | 17756 bytes |
SHA-256: acccddef31cc169928952852436b245b79402db22e26fc158b79157676ef20be |
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font_02_sfnt_off00013d84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D84 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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