MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by ClamAV as Pdf.Phishing.Trojan and exhibits characteristics of a callback phishing lure, prompting users to call a phone number for a fabricated issue. The document also contains numerous links to external PDF files hosted on various domains, suggesting it may be part of a larger phishing campaign or a link farm designed to distribute further malicious content. While no scripts were explicitly extracted, the presence of embedded URLs and the overall structure indicate a malicious intent to deceive users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://tentauto23.ru/ckfinder/userfiles/files/nuxukuwi.pdf
- https://castilloexterior.net/ckfinder/userfiles/files/terebajexo.pdf
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613556cf0bea1---pamipaxuz.pdf
- http://www.aceitunasdelguadalhorce.es/ckfinder/userfiles/files/82477847735.pdf
- http://jayeonrak.com/upfile_editor/2021/files/fuvuroka.pdf
- https://amgaa.org/temp/files/xigugesega.pdf
- http://stellarp.com/userfiles/files/rotimopenesopawima.pdf
- https://ljlconst.com/admin/images/file/jitasejoda.pdf
- https://vietrocknet.org/app/webroot/img/files/nemiva.pdf
- https://yp05.com/_UploadFile/Images/file/sogigegotovovitux.pdf
- http://hotelpenza58.ru/ckfinder/userfiles/files/fikaxuwifusakas.pdf
- http://rabotatver.ru/userfiles/admin/weraliroje.pdf
- https://secolink.sk/userfiles/file/71094130685.pdf
- https://sleepthai.com/piceditor/file/95182030724.pdf
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/p5p2j5gdd9irujbod0oq6jf6in/josifoxegavetumibubom.pdf
- https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/ad3238c99494e2b5d818204167e6b39d/11394398364.pdf
- http://jobsandhi.com/uploaded_files/userfiles/files/64389363147.pdf
- https://melnikhouse.com/userfiles/file/60354708206.pdf
- http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.net/ckfinder/userfiles/files/puwulinanedaw.pdf
- https://sindonis.com/userfiles/file/42511796101.pdf
- https://tims.ro/ckfinder/userfiles/files/77163568671.pdf
- http://adveotec.com/img/file/dabitedikobiwazaza.pdf
- http://bubb.cn/up_file/file/33148111528.pdf
- http://henskeschildersbedrijf.nl/upload/benisakogizasofamiva.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=deleted+call+log+recovery+apk
- http://cluster006.ovh.net/~greeters/be/ckfinder/userfiles/files/vusutemodaxapu.pdf
- 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_off0000e5d6.bin40f8f3804e284160f654cb9ec759ceb5c029a52aa3a313f7f5c4bf3557f9c510 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5D6 | 10600 bytes |
font_01_sfnt_off0000fe05.bin372c643388f59ce1f987fd34b5e2346f3f1a62edf26ac627c41f3fe5b3b4d21e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE05 | 18092 bytes |
font_02_sfnt_off00012ced.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CED | 16792 bytes |
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