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 0.9997
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://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/328342af856bf804c1fabef958933158/3493927180.pdf In PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/6d85llekb5vmr3boqso10pr6u7/jupiwusunozozid.pdfIn PDF document text
- http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/9ead6ce69bc37810d341ba81eb9770e7/duvegowuxevo.pdfIn PDF document text
- http://erbamedica.org/userfiles/files/86900087536.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/gisqp2le0q6i35l39s6clmarm2/83960099041.pdfIn PDF document text
- http://klasykarozrywki.pl/public/images/fck/file/bizimabefazelujiridilojo.pdfIn PDF document text
- https://seataclightingalaska.com/wp-content/plugins/super-forms/uploads/php/files/1bc20d20fe6d04e7faed77429a1d5891/xerenarobiregib.pdfIn PDF document text
- http://ciskmv.com/css/file/18722543890.pdfIn PDF document text
- https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/b58a72fb06d76b8a19e36d8f434bffa3/53552706987.pdfIn PDF document text
- http://doubletroubels.com/wp-content/plugins/formcraft/file-upload/server/content/files/160799c4f305f1---noviwagefudasimu.pdfIn PDF document text
- https://oddluzanie.net/userfiles/file/61610737085.pdfIn PDF document text
- http://texmet.pl/userimages/file/35266417624.pdfIn PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078517b4bced---58619840486.pdfIn PDF document text
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/890d117578bcfdac0d4186941c7676df/39382233266.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/d1e85d3508d67468030bf548e3805c0f/bupoxakezosejorasas.pdfIn PDF document text
- http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c4f8393facd---wopuwekogofebavak.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=real+flight+simulator+all+planes+unlocked+apkPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f899.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF899 | 5640 bytes |
SHA-256: 491efd833afcfc9f33827abff0c4ac9dc7e9f7f96edfd4ebd746422fd36ad81a |
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font_01_sfnt_off00010bb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BB0 | 15256 bytes |
SHA-256: 74b28fd0468b1d29895b9fcf57fc3a196cc6ab63acd23d0880e1f9217170f687 |
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