MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by multiple heuristics and an ML classifier, including detections for phishing and a link farm. The document contains numerous external links, many hosted on disposable domains, suggesting an attempt to redirect users to malicious sites under the guise of providing a study guide. No scripts were extracted, but the presence of a link farm and phishing indicators points to a social engineering attack.
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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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://trafficel.ru/123?utm_term=acams+study+guide+pdf+download PDF link annotation
- https://vokobilozo.weebly.com/uploads/1/3/4/2/134235622/mumodinitixaka.pdfIn PDF document text
- https://gepobuxew.weebly.com/uploads/1/3/1/0/131070920/df480dbce3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368485/normal_5f889952bac73.pdfIn PDF document text
- https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/3722212.pdfIn PDF document text
- https://riragojefo.weebly.com/uploads/1/3/1/8/131857115/db4b5c7062a.pdfIn PDF document text
- https://fupefasupemeze.weebly.com/uploads/1/3/4/3/134315788/pubagivijaw.pdfIn PDF document text
- https://razomidubijime.weebly.com/uploads/1/3/4/3/134395635/e9759238b68494.pdfIn PDF document text
- https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/1863925.pdfIn PDF document text
- https://nozigofomin.weebly.com/uploads/1/3/4/4/134481739/wisifefop.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481062/normal_5fb54b9465ea9.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/9bddd079-17d8-454d-a939-c1a108a2fe38/dezowamu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d1eb28a9-e5d9-48ba-af31-d6e2f4ab5063/ludimijuxiwapuxewiv.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f5ac943e-e36f-4639-be15-6586888578d1/arizona_desert_food_web.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/687471c7-37fd-438a-86b7-46d9ec7848b3/kexabubapivani.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c512dd10-4594-41b7-b25c-6bc708a03658/xadawotipemazulopoxi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/60795b88-4ef3-4579-999c-fd5948bbda70/8275383682.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0fe47b8f-f3e0-47dd-a2cf-d16d7d8e2e8c/tareas_para_preescolar_2.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_off0000b9d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9D5 | 5560 bytes |
SHA-256: c7b3a9a0240af6ed9a819a98b96bea99e2402b11b8ad34b9fb2849c2400cad10 |
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font_01_sfnt_off0000ccdc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCDC | 10036 bytes |
SHA-256: 3cc38c625f91c548aef73b2e6d078dbc430f5641848d9b65eda7a67dd3acc6c2 |
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