MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains a link farm pointing to various PDF files hosted on potentially compromised or disposable domains, suggesting an attempt to distribute malicious content or phish for information. The presence of a callback lure heuristic indicates the document likely prompts the user to call a phone number, a common tactic in tech-support scams and callback phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://sculecuacumulator.ro/app/webroot/files/userfiles/files/wuwinoso.pdf In PDF document text
- http://lamexmarket.com/uploads/files/lopiraxejeredutuwel.pdfIn PDF document text
- http://laconchigliacasevacanze.it/userfiles/files/34122234843.pdfIn PDF document text
- http://tele-video.ru/upload/files/xuzavidogexamiwudatiw.pdfIn PDF document text
- http://huichem.com/ckfinder/userfiles/files/kibirifugiten.pdfIn PDF document text
- http://shmgec.com/Uploadfiles/files/welaridi.pdfIn PDF document text
- https://mystruggle.uk/indigo/ckfinder/userfiles/files/kiwisuludap.pdfIn PDF document text
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ba21166d17d---kugixelenip.pdfIn PDF document text
- http://stressmanagement-karriere.de/userfiles/file/73381696611.pdfIn PDF document text
- http://qca.ch/userfiles/file/nijowepefiliwiluvef.pdfIn PDF document text
- https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/tmp/sujinufazupubex.pdfIn PDF document text
- https://mariellatriolo.it/public/file/7175135831.pdfIn PDF document text
- http://fishingas.com/userfiles/file/tunaxawapezegukanefa.pdfIn PDF document text
- http://jvcc.cn/ckfinder/userfiles/files/210715204129783759hffrr.pdfIn PDF document text
- https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/cb429d5706fcb519eca0fd5c1b4381a8/3877585316.pdfIn PDF document text
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/fd1fc47af86887cac3b1f8c7792d4c25/58849953408.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b558ac7e63c---vubusikawuserowasoro.pdfIn PDF document text
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/q74estb1l7i6u72n7ttkdbleoc/wimirufirerunemabumojoti.pdfIn PDF document text
- https://ilcaminodaugo.it/file/8845702728.pdfIn PDF document text
- http://purofirstli.com/userfiles/files/warixikuzuzaluxo.pdfIn PDF document text
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160a39a82f34ea---17195065090.pdfIn PDF document text
- http://shipagents.nl/uploadfiles/file/vuximor.pdfIn PDF document text
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16087a0e6c6aea---66631806896.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cbe04846f72---wapoturaxixa.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=manual+instrucciones+citroen+c4+cactus+2018PDF 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_off0000de23.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE23 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f63a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF63A | 10896 bytes |
SHA-256: fabb57865fddfa98c0c4bb6f1f7e5981890b3bf33f5756b982f2a5a7e3b3c783 |
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font_02_sfnt_off00010fb3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FB3 | 19248 bytes |
SHA-256: d737d5efd649be22323e16b91af77eb8af712b8e7650c985141490f550c1e387 |
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