MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous embedded URLs, many of which point to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users. The primary purpose appears to be directing users to external, potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 http://kepco-group.com/uploaded_files/userfiles/files/kupejowefidiximepax.pdf
- http://snap-drone.com/userfiles/file/78305509259.pdf
- http://jump360.co/upload/files/20210914164629.pdf
- https://iqmuseum.mn/uploads/files/nakorexafosotusulubekaba.pdf
- https://cplastik.eu/data/cms/file/30452976996.pdf
- https://norservis.info/files/files/60141081479.pdf
- http://ketphatthinh.vn/upload/files/nigadifosibopotigozuf.pdf
- http://hb-hospital.com/file_upload/fck_upfile/file/dubikotegedupasisiz.pdf
- http://paradoxine.com/upload/files/pabulugi.pdf
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/25db65c0d73d6568e9aaff663ae30782/foruwuxadilo.pdf
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614441b2dc35c---10452499396.pdf
- http://xszhuhai.com/uploadfiles/files/81089866313.pdf
- http://fotocaroli.it/userfiles/files/sarasisumixuzumutokugoso.pdf
- https://egyseg.eu/ckfinder/userfiles/files/kujujakebaladunujivulu.pdf
- https://alicantea.centralcms.cloud/galeria/files/71160628238.pdf
- http://midel.me/userfiles/file/favafufever.pdf
- https://bestrecycledautoparts.net/images_i/file/zoxukel.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ee878a923c---sobaniketosojudibataxu.pdf
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136a9f6b1fea---rufedumugotejivogiziduzew.pdf
- https://insp.biz/img/file/6683357280.pdf
- https://majubesar.com/contents/files/satubugevujunogofumar.pdf
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137387daf353---6645817260.pdf
- https://speculatio.in/ci/userfiles/files/kevivegukonetepekeduroz.pdf
- https://luckysurface.itweald.com/uploads/files/613a747f22d79.pdf
- https://blueparadise.pl/userfiles/file/kunajuxemibowesekukeridu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=convert+to+mp4+youtube+online
- 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_off0000de46.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE46 | 16792 bytes |
font_01_sfnt_off0000f65d.bin1d83f47d4eb94575646952e9c76e8eb795a4e46ab0de98dab67614331b3c765c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF65D | 10612 bytes |
font_02_sfnt_off00010e68.bin8bbb806cf465dcee37814e9828f0450292ea5c781cb7125a65942dc68adbc939 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E68 | 17536 bytes |
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