MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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 https://archism.ru/uplcv?utm_term=bullet+force+unblocked+hacked PDF link annotation
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ffc9a40474---99979711038.pdfIn PDF document text
- http://smflow.in/admin/uploads/file/pijakigidubigux.pdfIn PDF document text
- https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/d89a3e5a8ca828634aaa3380f6b89df4/lorodivokexuwafovifoxewag.pdfIn PDF document text
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16098307051f80---83974158698.pdfIn PDF document text
- https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/fbcb2ce1b95b602d4c24d34e01c5ba81/4725155361.pdfIn PDF document text
- https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/33c35b82ee4cc9d63d62a07646b8ad79/68196557278.pdfIn PDF document text
- http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086726c6509b---15945606108.pdfIn PDF document text
- http://fritz-fahrlaender.ch/download/38915399046.pdfIn PDF document text
- http://mg001.cn/upload_fck/file/2021-6-4/20210604153407288419.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/1609188dea636d---fixejevojavagebuniwa.pdfIn PDF document text
- http://agataklimowska.pl/userfiles/file/karopewivufepumu.pdfIn PDF document text
- http://www.lnk-creation.fr/upload/file/63203534915.pdfIn PDF document text
- http://al-bandak.com/userfiles/file/87928778702.pdfIn PDF document text
- https://emilline.dk/ckfinder/userfiles/files/belarozemirunusube.pdfIn PDF document text
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc0c9d4f9a6---xuwalixovifoputozofi.pdfIn PDF document text
- https://belloverde.net/emailer/file/sajanazubumituba.pdfIn PDF document text
- https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/e3b423bf09300023571e2bcd5ec9427a/70550014716.pdfIn PDF document text
- https://sgpropertylawyers.com/wp-content/plugins/super-forms/uploads/php/files/566c6cb0b62c206e2c08b6484d456713/mivub.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- 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://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010133.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10133 | 5016 bytes |
SHA-256: 0acc6331c8d5c1542e35935ef1381508836abaa8828bdc5ac200b36824677fdf |
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font_01_sfnt_off0001123d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1123D | 12488 bytes |
SHA-256: f3cea3aa8826e67ec558ee20acfba6d5ed3de299d813079935121d5d65106bcc |
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font_02_sfnt_off00013b22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B22 | 16384 bytes |
SHA-256: 230df8017a85ea93a5c886159708d72349b7227190d262bf2e9082262302ac19 |
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font_03_sfnt_off000150ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x150ED | 4324 bytes |
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71 |
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