MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains a large number of external links, many pointing to disposable hosting, suggesting a link farm designed to redirect users to malicious sites. One such URL is https://jottigo.ru/strik?utm_term=prentice+hall+gold+algebra+1, which is likely part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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://jottigo.ru/strik?utm_term=prentice+hall+gold+algebra+1 PDF link annotation
- https://static.s123-cdn-static.com/uploads/4418746/normal_5fe125127e0c2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4464715/normal_601e6d30d286e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4501204/normal_601eb4432ed6c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475572/normal_601f5e2b50e94.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387709/normal_5ff558080815b.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://9e2901ea-5d25-41a5-867c-54d0774c6e48.filesusr.com/ugd/4d0f37_3ba1c4b10d5849f2aa798ec9af16103a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/a1e257d7-9a45-4b2e-a1ce-bb6c48e3bf50/50810208487.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f472e969-3aa2-46e5-ac60-7ac7d68f54b7/votisibo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c5596636-602a-4782-98eb-a06123031713/99973957027.pdfIn PDF document text
- https://s3.amazonaws.com/dusubonifu/pewiwasekulejimarom.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/88b56941-65dd-47ff-b1f0-a2bc1981631d/23364884309.pdfIn PDF document text
- https://s3.amazonaws.com/pulujolatepuv/unit_4_vocabulary_from_latin_and_greek_roots_answers.pdfIn PDF document text
- https://3315be42-5dab-4b6e-b44d-105cb490973e.filesusr.com/ugd/2e3488_9e0e110b1261436ca948e97ed23ad641.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/zesixefe/borej.pdfIn PDF document text
- https://s3.amazonaws.com/sugowubuf/48920610905.pdfIn PDF document text
- http://rarazimefuv.rf.gd/bema_judgement.pdfIn PDF document text
- https://s3.amazonaws.com/rubidokezive/intracerebral_hemorrhage_treatment_guidelines_2016.pdfIn PDF document text
- https://df9240ce-57b4-430e-a582-521170ca5232.filesusr.com/ugd/10b03a_b38aaaf0a58d4f119b4c3bd0ec510641.pdf?index=trueIn PDF document text
- http://dadewom.epizy.com/irobot_roomba_595_battery_replacement.pdfIn PDF document text
- https://d4f4546a-a836-4b3d-8651-c56b89608eca.filesusr.com/ugd/3e9e83_92764c9e1627478b970a910eaceb42f1.pdf?index=trueIn PDF document text
- https://5663e088-3595-439c-971a-5873693bee35.filesusr.com/ugd/e98895_6388f4a235244fbdaff960047151e7b0.pdf?index=trueIn 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_off0000cbcb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBCB | 5216 bytes |
SHA-256: 660a206a75867e24393d22afea347f1f8adb3bba8102c72f87e08768391b3144 |
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font_01_sfnt_off0000dd7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD7F | 9908 bytes |
SHA-256: 4ad2d841a99f69938dc6fddc73d23cbef2dfd062a0cd565ef8a0ca046c2f8df9 |
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