MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that point to compromised websites and disposable hosting, forming a link farm. These links likely lead to phishing pages or further malware downloads, indicating a malicious intent to redirect users to untrusted content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 https://pistant.ru/uplcv?utm_term=how+to+draw+the+place+value+chart
- http://vizesblokk.hu/files/file/64664974698.pdf
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c9870a1128---vabalagurikogez.pdf
- http://hart-metale.pl/gimnazjum/userfiles/file/salezivoretamuvobifoj.pdf
- http://ackerviewguesthouse.com/userfiles/file/55119411271.pdf
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/664a932bbe1741765ef9f0131053e2ea/91627864936.pdf
- https://fallsplat.se/file/gedolukakojuguzi.pdf
- http://ranjitabiswas.com/userfiles/files/85179593668.pdf
- http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/564ad35b5906830f1627de541d20ac84/mazapodenewijilufonimij.pdf
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c930c381d17---81048606460.pdf
- http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cd4c7923f8---jozovek.pdf
- http://djpress.pl/Image/files/90838376954.pdf
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2e1b0752ef---31019409372.pdf
- http://hrzservices.com/uploadfiles/file/fiwabafejuzogutinos.pdf
- http://ikhmongol.mn/ckfinder/userfiles/files/nusisiserep.pdf
- https://www.prieur-equipement.com/ckfinder/userfiles/files/marisibona.pdf
- https://oncallanatomist.com/ckfinder/userfiles/files/3913877827.pdf
- http://www.anclupnapoli.it/userfiles/file/fovajolelopumarosesife.pdf
- https://p99.tw/pro_pic/files/vepimebotigiwatowalodowim.pdf
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/aikuleas75v11sqoc7rdf2bbl1/xamulujexowij.pdf
- http://asbazainville.org/userfiles/file/84376678493.pdf
- http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160a0f228f422a---favozitedudemuwopu.pdf
- http://greenhousehotel.vn/uploads/image/files/10335260200.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_off0001175a.bindd8a4b303976c871e169df98f29e127b95f1f3633bfd11d9d6d6ee70deb71092 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1175A | 17292 bytes |
font_01_sfnt_off00014481.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14481 | 16792 bytes |
font_02_sfnt_off00015c98.bind87d97e6953a6f4156e409367565d675e8b336a957c6d79cb31363c9fed51f4a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15C98 | 10492 bytes |
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