MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with multiple URLs pointing to compromised WordPress upload storage, suggesting an attempt to host and distribute a secondary payload. The presence of embedded URLs and the 'Download Button' heuristic further support this, indicating a lure to download malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f9278a85a02---gubazikexekepupetarera.pdf In PDF document text
- https://arhometutor.com/userfiles/file/mabusi.pdfIn PDF document text
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/faaf95130008b9fba75b5de94d4f8c92/72615500162.pdfIn PDF document text
- http://forumcutuca.com/ckfinder/userfiles/files/wisasagexeso.pdfIn PDF document text
- https://propiedades.net/ckfinder/userfiles/files/60775664606.pdfIn PDF document text
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/808ffd363e7eb3d5f13ce75da1d97f23/denaxisuvawiririnug.pdfIn PDF document text
- http://suamayin.biz/userfiles/file/ditumowemefifowig.pdfIn PDF document text
- https://clubkdo.fr/img/pics/files/46942265003.pdfIn PDF document text
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c4865c758b5---gusemudoju.pdfIn PDF document text
- http://ardechetendancebrut.fr/userfiles/ardechetendancebrut.fr/file/97172775597.pdfIn PDF document text
- http://generale-bureautique.fr/gdb/files/file/jusidafopadofexemiginopij.pdfIn PDF document text
- http://bahattinburyan.com/userfiles/file/99741205630.pdfIn PDF document text
- http://ysenb.kr/board/file/editor/file/66035587190.pdfIn PDF document text
- http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/8f465fbed08def367c7569316b1bcd54/13442144296.pdfIn PDF document text
- http://asea-admin.com/_userfiles/file/20210629021116.pdfIn PDF document text
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/4ccuim1s4ffu3r9t3201ocigmr/77340552463.pdfIn PDF document text
- https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132e0d7000db---xoxonanafisokarerolamovam.pdfIn PDF document text
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/cb983a52ff561040448e791b9164f54e/fowetulazerujisajakusu.pdfIn PDF document text
- http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/e57879d02aa2afa3dd40e55dd0702a21/62466457423.pdfIn PDF document text
- http://astorandblack.net/emailer/userfiles/file/32722806495.pdfIn PDF document text
- https://bloomeng.com/uploads/lukamemusurezujiroda.pdfIn PDF document text
- http://bkdesign.ee/userfiles/file/wurojew.pdfIn PDF document text
- http://luckdidea.com/ckfinder/images_store/files/88675378579.pdfIn PDF document text
- https://ecowaytechnologies.com/ckfinder/userfiles/files/14307364149.pdfIn PDF document text
- https://justforjetscatering.com/userfiles/image/files/nizewenifariket.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=principles+of+engineering+thermodynamics+8th+edition+solution+pdfPDF 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_off0000d283.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD283 | 11492 bytes |
SHA-256: de514a10e63529b04fcecc849ea441b182bc63ecb1bc81afe428103f9a0c2462 |
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font_01_sfnt_off0000ed54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED54 | 17428 bytes |
SHA-256: 647d9ce67fc2d266d28e02ad6f2b9723fcea87d0dfbe85b641e5e4e9265460df |
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font_02_sfnt_off00011afc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AFC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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