MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document is classified as malicious by ML models and ClamAV, indicating it's a phishing or trojan distribution attempt. It contains numerous links, many pointing to compromised WordPress sites, likely serving as a link farm to redirect users to malicious content. The document body, though heavily obfuscated, suggests a lure related to solving equations, which is a common tactic for phishing or malware delivery.
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=substitution+method+of+solving+simultaneous+equation PDF link annotation
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1609075eedf5b0---lumewuko.pdfIn PDF document text
- https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/067a585793320aeef8e79da13d2baf08/metupajofepir.pdfIn PDF document text
- http://adveotec.com/img/file/vinivon.pdfIn PDF document text
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/auh49cbevqvd1kgvmmtu56lcbg/tilerup.pdfIn PDF document text
- https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/7b7f14ba99cdd885b06be2eb00997646/binarutipotetunuvefix.pdfIn PDF document text
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/5bb2bbe153acbea7881e88f439335d22/66386340156.pdfIn PDF document text
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c1552fcc5a18a2c3a91242549a77b1a4/xoxafexewuwelozuro.pdfIn PDF document text
- https://spectrumohio.com/wp-content/plugins/super-forms/uploads/php/files/1fdb90a360b7277f0d7484b9df868137/janow.pdfIn PDF document text
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bd415e9274---fojexazilef.pdfIn PDF document text
- http://karunb.com/UpLoads/files/21857146.pdfIn PDF document text
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160730831dceb0---sukesosunezogow.pdfIn PDF document text
- https://room12shio4.com/contents//files/rojufaxevamikikafezodo.pdfIn PDF document text
- https://syntellect.ru/Repository/file/kaxaf.pdfIn PDF document text
- https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/16077552aecd1c---mudewesevikexuvewiborogo.pdfIn PDF document text
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16093cb37264ec---89468675935.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_off0000fcc9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCC9 | 5652 bytes |
SHA-256: 211bdbfbd94242d3314948b32ff4eef793efab45fd41bb6202b790d7f629a885 |
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font_01_sfnt_off00010fd9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FD9 | 11292 bytes |
SHA-256: 4387221569be4aa768438416648a4dbd169c4f3d25618bdf9736bbc16b06af84 |
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