MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains multiple links to external websites, many of which are hosted on compromised CMS platforms and appear to be part of a link farm. One prominent URL, 'https://crysiq.ru/uplcv?utm_term=autocad+architecture+2020+serial+number', suggests a lure for software cracks or serial numbers, a common tactic for distributing malware. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
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://crysiq.ru/uplcv?utm_term=autocad+architecture+2020+serial+number PDF link annotation
- https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/a79699adb791aa42f457a7f3c134e90c/27877105940.pdfIn PDF document text
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/5a0edf0038f6d865fcd78d1861dc3dc8/tozarozofewifer.pdfIn PDF document text
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/loqgcdin4vik35phhmji14h0l7/91209528130.pdfIn PDF document text
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609e4c1068e9c---digevefe.pdfIn PDF document text
- https://penal-garazh.ru/files/58178537646.pdfIn PDF document text
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160ac4b13117a7---paxusut.pdfIn PDF document text
- http://fantalife.nl/userfiles/file/sekupovulonalisesigag.pdfIn PDF document text
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/18ff904e3f45372690b6fc9ede8994d0/4526069123.pdfIn PDF document text
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089f6fe7dd03---7058204492.pdfIn PDF document text
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077262dbd147---xujutimuvazopaxekufoxem.pdfIn PDF document text
- http://deurenhanger.nl/userfiles/file/39779121713.pdfIn PDF document text
- https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/16074dbdda08c6---68891145213.pdfIn PDF document text
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/10607b7266fffb2ef64ba0dd9f801763/47353863756.pdfIn PDF document text
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c037d0c764b---sabuzinugorosorinovu.pdfIn PDF document text
- http://ccforum.kr/uploads/file/1623149664.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d201.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD201 | 5580 bytes |
SHA-256: 14a926bf09e8c4945e7007b1d266b8545ce7d5ce1cfc4ea77f6553fa07dff061 |
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font_01_sfnt_off0000e4c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4C3 | 9988 bytes |
SHA-256: 4fb06423478596977741b990076fee13b990195c7622da671ac4026d8c1b53dd |
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