MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Analysis reveals it functions as a link farm, with numerous embedded URLs pointing to compromised or disposable hosting domains. These links likely serve to redirect users to phishing sites or download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://krr-nfe.com/suratnfe/UserFiles/File/tedivobivivizixaj.pdf In PDF document text
- https://chsins.tw/uploads/files/202109131421329142.pdfIn PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/hiqu0f3urdatflerbg5v8so0s3/sepofipirotipeme.pdfIn PDF document text
- https://qwert5.com/psum/admin/userfiles/file/55812421117.pdfIn PDF document text
- https://etevent.itweald.com/uploads/files/61314a89935ca.pdfIn PDF document text
- https://kibledergisi.net/resimler/files/gewotanozajiwazedu.pdfIn PDF document text
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d4dd89dd21---16413392765.pdfIn PDF document text
- http://honmamon-s.com/img_seminar/userfiles/file/luganotewuvejovevidowipag.pdfIn PDF document text
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/161384eebc5f94---lexakosalefusa.pdfIn PDF document text
- http://adwokaci-pila.pl/userfiles/file/4852188433.pdfIn PDF document text
- http://farmaciafoglia.eu/userfiles/files/62307705204.pdfIn PDF document text
- http://belgium-ex.com/images/blog/file/46936614251.pdfIn PDF document text
- http://runnersavezzano.it/public/userfiles/file/luxigotowetezubamoxa.pdfIn PDF document text
- https://biodent.ro/m4fm_files/m4news/ck-uploads-files/82800892639.pdfIn PDF document text
- http://luxmeterthai.com/ckfinder/userfiles/files/16221558300.pdfIn PDF document text
- http://marchmont.ru/imgs/file/4689419165.pdfIn PDF document text
- http://studiomilano.eu/userfiles/files/48954233183.pdfIn PDF document text
- http://htwy.com/upload/file/49072023441.pdfIn PDF document text
- https://skywaynepal.com/userfiles/file/pasovukabufodunubumiditul.pdfIn PDF document text
- http://isotech.si/uporabnik/file/64819106559.pdfIn PDF document text
- http://www.corazondelsol.es/ckfinder/userfiles/files/funifejutironazoloriwejuw.pdfIn PDF document text
- https://nordavril.com/userfiles/file/xurinemuxodofatofabafow.pdfIn PDF document text
- http://copy-office.it/userfiles/file/50312573124.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=how+to+add+icon+in+android+studioPDF 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_off0000e24e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE24E | 19184 bytes |
SHA-256: 68ef41bc3e221ab161309b7d3832245bda058c82c1866164d865daa8ab2dc509 |
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font_01_sfnt_off000113ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113CE | 10364 bytes |
SHA-256: 7df52a2a796b4c34072bf7ad924265454c7d6ace61311fba16a473adb881ae68 |
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font_02_sfnt_off00012b5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B5D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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