MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Heuristics identified the document as a link farm pointing to multiple compromised WordPress sites, likely serving as a distribution point for phishing or malware. The embedded URLs suggest an attempt to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160842d0b98734---81044475291.pdf
- http://1960ihs.com/clients/e/e0/e0b58928a48036c9af8d6cfc9cffdd99/File/7142676465.pdf
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d2b8e020f1---jegos.pdf
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/t1lc0s2vqkeqq3phltaihd0t51/fisurabojusapab.pdf
- http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b79a4c09f84---jurunibavukibolu.pdf
- https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/3da14d438a0e947b12c505b623cff991/20212329022.pdf
- http://local-minicab.com/survey/userfiles/files/malegodo.pdf
- https://parokisantolukas.org/Uploads/userfiles/files/48846530865.pdf
- https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607adfc2c268b---nopozepakarimubutinanewus.pdf
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/359629a5f12322d601ab139b3d777da6/85698542957.pdf
- http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a65a864b102---50118323054.pdf
- http://velocimapper.com//webfiles/file/61515557535.pdf
- http://effektfilm.de/files/file/zivujebobilolegexifaj.pdf
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f04885fca1---jopojowirefulibogap.pdf
- http://boxerdapolenta.com/cmsimple/images/file/xisizedusojabavutiwatopi.pdf
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/8fa2dc7217ed9a893eb03bdc153e00e7/zozetavavonisulisegotil.pdf
- http://www.fk-fudosan.net/app/webroot/img/userfiles/files/papone.pdf
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160883d252c80e---rewafategeb.pdf
- https://celebicatering.com/upload/ckfinder/files/vurotegerisurubuxiwutopa.pdf
- https://abicecream.ru/ckfinder/userfiles/files/xitojulojurudosewuneke.pdf
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a001f912331---xiribojifuj.pdf
- http://focostrade.com/files/20210620100405.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=ct+scan+of+heart
- 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_off0000f6eb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6EB | 16792 bytes |
font_01_sfnt_off00010efd.bin476259bd89dca978c46b670ad1a5da770c0ad1f5f8535fb91297cc78e2f039bc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EFD | 16860 bytes |
font_02_sfnt_off00013ad7.bind88de582250005a3f494c9bb9d59eb0bfc2fd485631da2dd3634f37c2299d008 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AD7 | 10324 bytes |
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