MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to compromised WordPress sites, indicating a link farm designed to distribute malicious content. ClamAV and ML classifiers confirm its malicious nature, flagging it as a phishing trojan. The embedded URLs suggest an attempt to redirect users to potentially harmful sites, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a3306ac98a---15230601557.pdf In PDF document text
- http://flightshop.jp/images/blog//file/bozuvebafuzawupewaguxoled.pdfIn PDF document text
- http://curry-box-deluxe.de/userfiles/file/48270104461.pdfIn PDF document text
- http://dlikefulproductions.com/clients/875850/File/5868221227.pdfIn PDF document text
- https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/98ac061223ed63790233432a6b7cbbd4/59034049921.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/5db4ef20sv1bs14vu1j4275kbc/napelu.pdfIn PDF document text
- http://qianxi.cn/filespath/files/20210902065324.pdfIn PDF document text
- http://czdashan.cn/uploadfile/file/2021072915133173499.pdfIn PDF document text
- https://romalasergroup.com/userfiles/files/89760161799.pdfIn PDF document text
- https://bk.knu.ac.kr/ckfinder/userfiles/files/57121090187.pdfIn PDF document text
- https://peisheng.org/uploads/ckfiles/files/612ba1813ae77.pdfIn PDF document text
- http://flemingdecal.com/uploads/assets/file/kosazukidawomurelopus.pdfIn PDF document text
- http://bluecars.pl/userfiles/file/25373278894.pdfIn PDF document text
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/24e262e7e7579883c65eb40c80e258f1/kolegunejunusetavudezazi.pdfIn PDF document text
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/16127d457603a2---5952280077.pdfIn PDF document text
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/f24baed2caa79288d10686f12ba7adbe/91237785136.pdfIn PDF document text
- https://nguyenvanhuongloc.vn/app/webroot/files/images/pages/files/jaxetumolesozedinabu.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099da200175f---53120092081.pdfIn PDF document text
- http://tpdw.pl/userfiles/file/81338911660.pdfIn PDF document text
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/0a79db8f344bb95a44a0f68b68d490f0/42588855738.pdfIn PDF document text
- http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bc63b011372---20501162041.pdfIn PDF document text
- http://fullcolorspandoeken.nl/userfiles/file/rimiza.pdfIn PDF document text
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160f99986f2ef3---44176655228.pdfIn PDF document text
- http://norview63.com/clients/5/59/59ba6e1aa7224642a1eeb14435756cbf/File/2799729866.pdfIn PDF document text
- https://jahanchart.ir/data/files/file/ramepoji.pdfIn PDF document text
- https://interativacorretora.com/fotosempresa/files/selawujojiximupirije.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=word+problems+4th+grade+pdfPDF 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_off0000e5f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5F2 | 17216 bytes |
SHA-256: 7ae1e71faf15745332e814117c43344c58748320a7fd2ac97336db13f9c8d408 |
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font_01_sfnt_off00011276.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11276 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012a8d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A8D | 10960 bytes |
SHA-256: 7bcae045b0cc0e7a2bcebc0e664e4930ef9c6b3c2bf1f21efd553df5f1accb96 |
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