MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous links pointing to compromised WordPress sites, functioning as a link farm. The presence of 'utm_term' in one URL suggests a potential phishing lure related to stimulus checks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://cructi.ru/uplcv?utm_term=4th+stimulus+check+wednesday
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/160abb63424a99---65171575244.pdf
- http://kath-kiga-bw.de/bilder/berichte/file/sivinerarofen.pdf
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607c2db0f32f9---vufinawaxularulefi.pdf
- https://tierrettung-in-katalonien.org/ckfinder/userfiles/files/gowawevojid.pdf
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160822f4ca08eb---risumadoroxin.pdf
- https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/04b25b7a27254171c48775a1356ed628/27458920909.pdf
- http://eugensa.lt/app/webroot/uploads/userfiles/files/69189562514.pdf
- https://dodatkireklamowe.pl/web/uploads/files/dakikutovipif.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c6ec9eed07b---73723668645.pdf
- http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef41b9eeeb---70891272656.pdf
- http://allmedicus.com/userfiles/file/94027730002.pdf
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a343c89f989---72175135107.pdf
- http://asremajazi.com/uploads/files/dupezozulofebedelewij.pdf
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/9jb15qrm1lkaffnei2a6oe9k67/filopokasejujezemumijepo.pdf
- http://energo-winstal.pl/userfiles/file/zepopulalolaravuwopo.pdf
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/6f866c354526ef88230336611609711a/busikugalu.pdf
- https://audreyheselmans.com/_files/file/kaziworalosilajisoju.pdf
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160755c380345a---73792732342.pdf
- http://cwesp.biz/upload/file/xunigumazigesasu.pdf
- http://kzlo.pl/fotki/fotki/file/kakadiduvuxaf.pdf
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c97c3a3d1a2---54094990367.pdf
- http://s292376414.onlinehome.fr/datas/imgmail/file/18810189034.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f894.bin90fac020d90c9435e8992b3985e07abe37d9ffedb3c46c667eaa9673d56aec01 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF894 | 17364 bytes |
font_01_sfnt_off000125c3.bin1db563e65b318f2dde85ee30adb6354a5139891a9d5945f6005c44c891d985df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125C3 | 10788 bytes |
font_02_sfnt_off00013e8c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E8C | 16792 bytes |
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