MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as a link farm hosted on compromised WordPress sites and disposable domains. The embedded URLs, such as https://catamma.ru/uplcv?utm_term=imo+call+recorder+automatic, likely lead to phishing or malware download pages. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://catamma.ru/uplcv?utm_term=imo+call+recorder+automatic PDF link annotation
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/32fb2238e4f5ba0a9317f3d4580c9034/83876586634.pdfIn PDF document text
- http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/160aec2380581a---64029974842.pdfIn PDF document text
- http://tantex.org/tantex/tantexuserfiles/file/62214773615.pdfIn PDF document text
- http://mayfamilycircle.com/clients/5/53/53cd9f4101e72b768929e5daf979c2da/File/347145827.pdfIn PDF document text
- http://americanpetrochemicals.com/customers/CMS-IMAGES/file/komotunu.pdfIn PDF document text
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a7f40ee55cd---35639825.pdfIn PDF document text
- http://kleiberit.ru/files/file/58416397773.pdfIn PDF document text
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/16089e5cf5f3d5---66937682644.pdfIn PDF document text
- https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092a65a13aec---xixoduzugajitivanuvumo.pdfIn PDF document text
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/u5rn71b3p68dk8i96013fd9ngu/16560023811.pdfIn PDF document text
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/f067ff2b777735fac53c36752efe2226/7744987557.pdfIn PDF document text
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16076e5291cbd6---pozidajipeniton.pdfIn PDF document text
- http://nct-vn.com/userfiles/file/gidexofitubo.pdfIn PDF document text
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c0178383c8---29964421421.pdfIn PDF document text
- https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/7sjmromhkrp57mp3rqcvgcmd61/netulidir.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f673.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF673 | 2912 bytes |
SHA-256: 525982f1d28f4a28b16951271f2b66eb7279fc50f11575f8e7a998d3be15c8e0 |
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font_01_sfnt_off000100ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100CE | 4844 bytes |
SHA-256: 29096de15e15f6ee48f2c2ec46464d6375ce67e105dce09276f46adc0958c14d |
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font_02_sfnt_off00011129.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11129 | 10956 bytes |
SHA-256: 930daf1f400ddf21e6a47e2a4cd1ee9101eefe974038e3e1cde92026c6a55423 |
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