MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, with numerous URLs pointing to various websites, some of which are hosted on compromised WordPress uploads. The presence of 'utm_term' parameters in some URLs suggests an attempt to track user engagement with potentially malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://archism.ru/uplcv?utm_term=penthouse+letter+pdf PDF link annotation
- http://www.elstar.ru/uploads/files/19095580992.pdfIn PDF document text
- https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/3e1436ee9360f2c24871ec4dc29ff194/mofagifetajixot.pdfIn PDF document text
- http://mt-filtration.com/uploaded/file/62560374461401c8b1c06b.pdfIn PDF document text
- https://topclassgreenery.nl/images/file/68941664401.pdfIn PDF document text
- http://annabarons.com/files/files/tubagiteloxixikamegu.pdfIn PDF document text
- https://copyjokertw.aw6.tw/uploadfile/qu4_qu106_com/files/89037398574.pdfIn PDF document text
- http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ffb5d65339---82505176159.pdfIn PDF document text
- https://valgott.com/images/userfiles/file/62848804717.pdfIn PDF document text
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139c78bb52ff---30927240718.pdfIn PDF document text
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613891de12ca8---98258168277.pdfIn PDF document text
- http://arablift.net/userfiles/file/dalosunitakitekomese.pdfIn PDF document text
- http://nwatchonline.info/userfiles/file/mirox.pdfIn PDF document text
- http://lasantitosrestaurant.com/userfiles/file/ropusariwime.pdfIn PDF document text
- https://www.terraton.com.my/ckfinder/userfiles/files/gorokowulivozagosod.pdfIn PDF document text
- http://herve-coiffure.ci/files/24964076051.pdfIn PDF document text
- http://maksimetall.ru/files/maxivuzef.pdfIn PDF document text
- http://malagi.pl/user-files/fck/file/razixenapixuxolotagatov.pdfIn PDF document text
- https://ksuskalology.com/images/file/68173389640.pdfIn PDF document text
- http://lerucherdesanges.fr/userfiles/file/tejukolozadevubi.pdfIn PDF document text
- http://syarmarka.ru/userfiles/files/89470811943.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/444a0113198190ccd7130d4ab6c35db4/befigavo.pdfIn PDF document text
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/161353e7f41a91---moturobimitopipi.pdfIn PDF document text
- 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_off0000d7a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7A9 | 10440 bytes |
SHA-256: 7f2cf3e77a61fb635915a74ce431c611102a70673a231805922fcb5a7cc30890 |
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font_01_sfnt_off0000ef47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF47 | 19256 bytes |
SHA-256: 441fccfabbdd1ddd7cdae903cef23738a367137ae3b6b7f939fb26781c391e97 |
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font_02_sfnt_off00012200.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12200 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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