MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many pointing to disposable domains and Weebly hosting, indicating a link farm or SEO spam tactic. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. The document body contains a seemingly benign title about COVID-19 symptoms, which is likely a lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://rudunusom.weebly.com/uploads/1/3/4/6/134602981/d5d2ab68e5203b.pdf In PDF document text
- https://xadafujivesa.weebly.com/uploads/1/3/1/3/131397927/mukezusaxomol.pdfIn PDF document text
- https://sarodinejafa.weebly.com/uploads/1/3/4/7/134762654/wumoxutonukizili.pdfIn PDF document text
- https://rotaxavevun.weebly.com/uploads/1/3/4/8/134884867/zetebojax.pdfIn PDF document text
- https://lezanixopedem.weebly.com/uploads/1/3/4/8/134886347/5cda00ac1e.pdfIn PDF document text
- https://vorexumezekadan.weebly.com/uploads/1/3/0/9/130969740/fosiwubigob.pdfIn PDF document text
- http://monanuzusud.22web.org/todinimowofavuregak.pdfIn PDF document text
- http://sizuxubotinukor.22web.org/92372915741.pdfIn PDF document text
- https://pojekemo.weebly.com/uploads/1/3/4/4/134469054/0ef19e1c.pdfIn PDF document text
- http://xexogafuko.22web.org/insinkerator_badger_5xp_manual.pdfIn PDF document text
- https://puvomowaja.weebly.com/uploads/1/3/4/3/134318832/nexeveven.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://feedproxy.google.com/~r/wb/ENAH/~3/3IgsHNHpEfs/wb?keyword=cuales%20son%20los%20sintomas%20del%20covid%2019%20en%20bebesPDF link annotation
- http://rarobijeriv.rf.gd/android_emulator_use_bluetooth.pdfIn PDF document text
- https://s3.amazonaws.com/vukusa/4870538998.pdfIn PDF document text
- https://5984e891-aecd-43e6-866f-efdb297c9c35.filesusr.com/ugd/403565_8e1c96607edb4188abd8429311837070.pdf?index=trueIn PDF document text
- https://8d928d4c-4e32-4dc6-8093-d383c90b3cca.filesusr.com/ugd/b5d49c_a20fe5627dc04607bf4bed302eba5f8c.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/mokixetat/platform_as_a_service_market_size.pdfIn PDF document text
- https://486bfeb6-87d8-40a3-812f-3449909c9139.filesusr.com/ugd/81b904_188854f9d9384723b03ca7d23a31da9f.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/sasufufa/febesifinuwibesewede.pdfIn PDF document text
- https://57fc24c6-ba7c-430a-bdae-05304608b610.filesusr.com/ugd/bc9c68_e71d4af8f28d4ff9adaf3aedd1e57451.pdf?index=trueIn PDF document text
- https://aa4c2489-c93b-4667-afab-104bf5323bad.filesusr.com/ugd/8b49c6_81eebf2851a14382ac51cd37d7a938b0.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/dukajevo/69570324346.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_off0000f2cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2CF | 5300 bytes |
SHA-256: cb018a42c5e109f80dbe97a3cf274e06eebec1d92d0b1413bc44e3bdadbaaaa1 |
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font_01_sfnt_off000104c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104C6 | 11876 bytes |
SHA-256: d941265d084c704cd243ca4d3a09da5756aa48ccad2fa5570a0642fd2875aca7 |
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