MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. Static analysis revealed it functions as a link farm, with numerous URLs pointing to compromised WordPress sites and other disposable hosting. These links likely serve to redirect users to malicious content or phishing pages, a common tactic for initial compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
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://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/0843befff9b2add09a07ffc735c2fb40/19768667451.pdf In PDF document text
- https://eminenceconstruction.ca/viking1/uploads/files/lazoxigobagexorined.pdfIn PDF document text
- https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/6b83fa90bdcddcaeecde0c57dd723343/42869492597.pdfIn PDF document text
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c52542d9d6d---wejedogokiwasodozojim.pdfIn PDF document text
- https://lusagroup.mobi/images/website/user/files/ligatupomekosifupuzowapub.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/6b2f0de6512170e07780f17283104034/14530319431.pdfIn PDF document text
- https://songhong.info/userfiles/file/buresetikitogudi.pdfIn PDF document text
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/d3f90cba2a029912f141ad628b5555cb/82067208016.pdfIn PDF document text
- http://coming-c.com/userfiles/file/63345184735.pdfIn PDF document text
- https://anup.bo/images/files/58581959694.pdfIn PDF document text
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/370eb16622d93b7baaa1dcd37525ad48/49826884415.pdfIn PDF document text
- https://denimder.org/resimler/files/33056457772.pdfIn PDF document text
- http://transinfosoft.com/userfiles/file/dipunisajukemi.pdfIn PDF document text
- http://allaboutdowney.com/userimages/bazif.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a47b458512a---72262562779.pdfIn PDF document text
- http://cmuniontravel.com/userfiles/file/59016002937.pdfIn PDF document text
- http://cosmickino.ru/sadm_files/98279067701.pdfIn PDF document text
- http://tourbusan.net/FileData/ckfinder/files/20210814_F31608854F27E04E.pdfIn PDF document text
- https://kmkmekanik.com/upload/ckfinder/files/12891561805.pdfIn PDF document text
- http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/63c1372828331dd250c793fd5d5efe6e/wabelitonav.pdfIn PDF document text
- http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/6e5587bf7f8584480445dc01ca87c1ac/2577368333.pdfIn PDF document text
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608636fc7bcb0---lalenakokadikezafoluza.pdfIn PDF document text
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/49e7673382a2de5ca1658a10760a0e8a/vepigasebeposuxameg.pdfIn PDF document text
- http://fincasotilloviejo.es/files/sotillo/_repo/file/73954320343.pdfIn PDF document text
- https://nisahanpin.com/calisma2/files/uploads/19047133317.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/ceuuv97imngl06lvocq7k94l30/75170646597.pdfIn PDF document text
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/8271b8f203e11390eb3959ee1280beff/92655247049.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=alliteration+and+onomatopoeia+lesson+plansPDF link annotation
- 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dd84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD84 | 10532 bytes |
SHA-256: 6149223a69c22bc0be005da30d2cb7e0e02151d75f8d12940f08fcd1f2c0c35b |
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font_01_sfnt_off0000f579.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF579 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010d8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D8B | 16576 bytes |
SHA-256: 6c02b65670551166ca1c46ae41e2f05c74749eb419779abec3f032bf4cae3035 |
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