MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://gimoguvi.ru/123?utm_term=calend%25C3%25A1rio+escolar+2018%252F+19+pdf PDF link annotation
- http://pekibimige.mygamesonline.org/49210732423.pdfIn PDF document text
- http://memaberenux.scienceontheweb.net/lalejepexiduzevezotat.pdfIn PDF document text
- https://jelebemurufipo.weebly.com/uploads/1/3/4/4/134442628/c8e5d427c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481155/normal_6054790266b66.pdfIn PDF document text
- https://mazomolorir.weebly.com/uploads/1/3/2/6/132682829/fodanureketebelemeno.pdfIn PDF document text
- http://biwumani.mywebcommunity.org/xibuganupir.pdfIn PDF document text
- http://xutusurekawidi.medianewsonline.com/ramovogogadisesidogox.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4462352/normal_606080f26d3c4.pdfIn PDF document text
- https://sixebujexe.weebly.com/uploads/1/3/0/7/130740217/fobobojaneditewor.pdfIn PDF document text
- https://panonalosisewe.weebly.com/uploads/1/3/5/3/135316392/wokofo.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4416921/normal_60067d713164a.pdfIn PDF document text
- https://rewapukin.weebly.com/uploads/1/3/5/9/135961798/3926071.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://bf6af823-cb0d-4ee8-9d5b-4f0b1de5ed24.filesusr.com/ugd/9eb187_98c48ce92de042b4a440a91df76ebdfc.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/rimepusox/encroach_on_crossword_answer.pdfIn PDF document text
- http://gamelaluwer.myartsonline.com/chefs_choice_hybrid_200-3_manual.pdfIn PDF document text
- https://s3.amazonaws.com/firudegix/gogolubokatijisunabumew.pdfIn PDF document text
- https://3f735f5a-cd1c-4288-bd93-adeff6e084d9.filesusr.com/ugd/bcc0e4_ec47a6ef694a450bac525de09bf0bf12.pdf?index=trueIn PDF document text
- https://cf4de027-7369-46c2-bf93-d69cabef2b5e.filesusr.com/ugd/868b90_2969c79554e945f79ee7099e37dc71c6.pdf?index=trueIn PDF document text
- https://2b81f3f0-3f46-42ff-87a7-5865dd96cd3c.filesusr.com/ugd/fb41f9_f22486e4038f4633a30fe76cf1b281bc.pdf?index=trueIn PDF document text
- https://02664c88-84e5-42fa-aae3-682d3a0d4328.filesusr.com/ugd/39d081_4af2d51ecb9343419c36ce8bc3143698.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wunupalezozerud/707554897.pdfIn PDF document text
- https://59cf682b-6680-4a08-8b8d-0472bab64ef7.filesusr.com/ugd/d7d6cd_12ed88d76a364ebfb42d2eb87373971c.pdf?index=trueIn PDF document text
- https://49550882-97ce-44db-a38b-6e383bb81149.filesusr.com/ugd/062c90_5399c6bce7e54b9bbb60f3008d4fc7b0.pdf?index=trueIn PDF document text
- https://d2d87fd5-5f4d-49aa-ab3c-2263ce4b5d22.filesusr.com/ugd/9169d2_45aabb1e7b5143ae9acd0a15baca07d3.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_off0000e967.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE967 | 6000 bytes |
SHA-256: d960caf1c9852ea064d687f670c0af9bdeef115a83ab8da954ac23f012680d9f |
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font_01_sfnt_off0000fd58.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD58 | 12688 bytes |
SHA-256: 183937a8737515174df5118ece099cfdf1a909ec251019b00c150b2f6be9f0d0 |
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