MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The ML classifier and ClamAV detection strongly indicate this PDF is malicious. The presence of multiple external URIs, including a link farm on disposable hosting, combined with heuristics for urgency and invoice lures, suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a spearphishing attachment attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://jottigo.ru/wix?keyword=construction+estimate+terms+and+conditions+sample PDF link annotation
- http://ronifibofizet.medianewsonline.com/579868745.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4422135/normal_60245773f0826.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4454167/normal_5ffc7e0fae552.pdfIn PDF document text
- https://kazuvamelu.weebly.com/uploads/1/3/0/7/130738637/6000050.pdfIn PDF document text
- http://norasuzajo.mywebcommunity.org/centrales_termicas_de_vapor_y_generadores_de_vapor.pdfIn PDF document text
- http://meroxisawifagu.mygamesonline.org/historia_del_calentador_solar.pdfIn PDF document text
- http://pefiworawodud.mypressonline.com/safemugejurolof.pdfIn PDF document text
- http://alphabitx.com/folelulajujedemebuzafuycb.pdfIn PDF document text
- http://jolijivik.scienceontheweb.net/public_administration_and_development.pdfIn PDF document text
- http://gemajelibetojup.scienceontheweb.net/60502102756.pdfIn PDF document text
- http://belkwigs.com/miluxogeperutebomimatae43zh.pdfIn PDF document text
- https://kanumipiga.weebly.com/uploads/1/3/5/3/135346224/balom.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/46d13096-a2c7-4fdb-83bc-ba3fd50d2599/house_of_morgan_wikipedia.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8547ccf5-0bd0-4f2f-ae90-73a297e1d0d4/wovagizasalamikipu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/846779c9-76b2-43f9-a31f-2733a40bed61/55375241160.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/43b71deb-6e0d-42f7-8e62-23e9e787a4f4/much_ado_about_nothing_online_book_with_line_numbers.pdfIn PDF document text
- http://vawerudarasikow.myartsonline.com/bk_shivani_quotes.pdfIn PDF document text
- http://gapoxuvopa.onlinewebshop.net/xazasaf.pdfIn PDF document text
- http://weponigonimogo.myartsonline.com/zanegebuv.pdfIn 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_off0000ff9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF9C | 5124 bytes |
SHA-256: 9f1512acb54ff8235ad21cefb73c67e94e1f19e6d1303bd68883ffe9a2ece66b |
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font_01_sfnt_off000110e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110E5 | 11660 bytes |
SHA-256: c5b8904495cdfaf85267b34401111eca859f25f3a1ebb167fbbc3782e89f3fd4 |
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