MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs pointing to compromised WordPress sites and other disposable hosting. The primary purpose appears to be directing users to potentially malicious content or phishing sites, leveraging a common tactic for initial access via spearphishing attachments.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16078b72e0b04b---36695002061.pdf
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/cae37ebd9e5fd483201f25bbf2e111f8/16167324894.pdf
- https://ceccargiurgiu.ro/userfiles/file/nopomipejolesuzopijemunu.pdf
- http://xn--h49al33a2zdp0eo1x.com/DATA/file/20210619113535.pdf
- https://digitaldaya.com/imagenes/file/viwabinipikumolemojasi.pdf
- http://andrelandberg.com/userfiles/file/raxul.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/16089ced48c9b8---24143394560.pdf
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/e6727a4d2c7bde05a8874c213571b0be/mixafepuj.pdf
- http://omonetach.pl/foto/ilustracje/file/74364900003.pdf
- https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608238564575f---13446788146.pdf
- https://caribemed.com/userfiles/file/pasipulalamozezo.pdf
- http://www.wiz-fac.com/uploadImg/file/pivut.pdf
- http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160bfba0bbf719---30283153590.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ca56220b5daaae84157f0354b8aa3576/jereriwepipexalojirip.pdf
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/7be8efe4aa0bf9ee926f2d6ed3e5b8b4/85128019480.pdf
- http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b05cccb51d6---tanoxedusejedutuzagaf.pdf
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16090d7be0a146---medezodamo.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160cbb43797ab6---76725810503.pdf
- http://imssp.by/data/images/fxeditor/file/josamowejulo.pdf
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16073bab75e4c5---63472187539.pdf
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/a19a146c815880899f06f5930c8befaa/mizuweza.pdf
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160d57398cd325---1249173726.pdf
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bbad2d03127---44512595637.pdf
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/970c09d308fcdbb792417b0da07a831a/mufizurusijexitotarer.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=state+the+rules+in+adding+integers
- 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_off00011059.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11059 | 16792 bytes |
font_01_sfnt_off0001286b.bincc63b46469f35f16b8b02b8caac905f8bba07e0256fcf708c95e22fe75bd3ed2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1286B | 17984 bytes |
font_02_sfnt_off000157e7.binf639de4f6562e9041b6afc624cb6a6ef389beed7c8f8433587bf86cbf2962c91 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x157E7 | 10580 bytes |
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