MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning model indicated a high probability of maliciousness. It contains a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to distribute malicious files. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document may be instructing the user to open a password-protected archive, a common tactic to bypass gateway security.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://drstevealbrecht.com/wp-content/plugins/super-forms/uploads/php/files/62b5b093a822b27a4555b3b431f9e62e/80221550679.pdf In PDF document text
- http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084bcc7619e7---rirorul.pdfIn PDF document text
- https://vildmarksjagt.dk/userfiles/file/tosolebusinozerupokatirir.pdfIn PDF document text
- https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/cbc0f80e92e447318fcaa137cb8a2315/61069631047.pdfIn PDF document text
- http://3e-machinery.ru/app/webroot/filesfiles/towenudisenezixumuda.pdfIn PDF document text
- http://narcisse.sk/editor_uploads/files/85787991394.pdfIn PDF document text
- https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/66ae28de3dc855822da24ce289c85b11/tivikaviserojubav.pdfIn PDF document text
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/nbjp8jg26udl7tbf8u48rqftl2/67304925574.pdfIn PDF document text
- https://ohcsi.com/ckfinder/userfiles/files/zetudamas.pdfIn PDF document text
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e4df0380c9---lonavinifexexivi.pdfIn PDF document text
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/7je62mid1lccnig1396m22menc/17517136357.pdfIn PDF document text
- http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16082ad5ac237b---fuwirosaremujujafifesup.pdfIn PDF document text
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/6rgk3ddugmre2mblu4f4f12lgb/wusuvatiz.pdfIn PDF document text
- http://booklandbooks.com/userfiles/file/41543406652.pdfIn PDF document text
- http://glina-master.ru/admin/ckfinder/userfiles/files/voduzose.pdfIn PDF document text
- http://cdn.eagle.mn/uploads/userfiles/files/welabotinorenuzut.pdfIn PDF document text
- https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/cf8d420a12c07fe2019f1048267bc86b/11648681253.pdfIn PDF document text
- https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/f44359ede0fa157fab057c4f2d3219af/40830696607.pdfIn PDF document text
- https://pemaboutiquehotel.com/assets/userfiles/files/8918683879.pdfIn PDF document text
- https://parc-hotel.info/file/44225384872.pdfIn PDF document text
- http://afgventuregroup.com/cfiles/file/34972415097.pdfIn PDF document text
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/160805bb56977c---lanifewalawozuran.pdfIn PDF document text
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16087fa4038265---37131656685.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608b02d7dccc8---sipumukefosedumaxixixax.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=types+of+cataracts+in+humansPDF 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_off0000c0af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0AF | 10876 bytes |
SHA-256: c0e3ab3b1c0f306b2515ff61f16a3b8ff456901c799beb9d4a793c6e336389bb |
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font_01_sfnt_off0000d9b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9B3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f1c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1C5 | 16488 bytes |
SHA-256: 3970837f3c34143d3ab5515d8e7219038071586cab3745dfb43e78c2af84b2d7 |
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