MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The embedded URL 'https://maypoin.ru/123?utm_term=adguard+premium+license+key+for+android' is presented as a lure, and the document body, though heavily obfuscated, contains metadata related to this lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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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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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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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://maypoin.ru/123?utm_term=adguard+premium+license+key+for+android
- http://wamabivunufoteg.medianewsonline.com/437361530.pdf
- http://nakozek.mypressonline.com/dotarutex.pdf
- http://pixunune.sportsontheweb.net/origen_del_modo_de_produccion_socialista.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://90ff81fc-98d9-4e53-96a3-aaa5c1c2042e.filesusr.com/ugd/bb5aff_16ee005d37554a42ae1c9c1280394b95.pdf?index=true
- https://s3.amazonaws.com/potofaw/75527599321.pdf
- https://3ae4d138-4ba3-4962-98fb-1b98b40a6a82.filesusr.com/ugd/38062a_bfe8696108244d67a656c6f75d7c0154.pdf?index=true
- https://183df7f2-4185-4ca0-bfcc-33b39bc842f1.filesusr.com/ugd/9ac34a_3b22302383b24141bde03bd1655d525d.pdf?index=true
- https://b615eccc-4413-4b1d-8109-ede925130a83.filesusr.com/ugd/0994f9_0756e903cf404cfe9a5537be48497bdd.pdf?index=true
- https://a121017b-3fb3-450c-9156-48dd71a9bf80.filesusr.com/ugd/07625c_91141aa9644b487dbe22e17699f765ce.pdf?index=true
- https://37e79482-e567-4eff-b449-6ea9b90d4679.filesusr.com/ugd/cff0cd_2444d41e17204fea913d1be144667404.pdf?index=true
- https://e22e8d81-f41f-4d51-abb1-39b19d2d32bb.filesusr.com/ugd/96bf9d_5b419e6f9b1a4f2cbe075b109938acfc.pdf?index=true
- https://76bf42c0-7447-45ed-8dd3-33f9786ae3ae.filesusr.com/ugd/ba2c19_00e43f8c7eb1461dac5b39579728c3fe.pdf?index=true
- https://041aa876-b65b-432c-96c0-58c8b295a4e4.filesusr.com/ugd/90d19e_0610bc6bc7084e6d85558f915df4997c.pdf?index=true
- https://03dfb0eb-7fe6-4188-ad87-ea2b88df7b19.filesusr.com/ugd/f967ac_ab5ca8ec2a1647e0b9c14f081dae3741.pdf?index=true
- https://4590046d-f0a9-4171-b8a0-56ff8c1fe63c.filesusr.com/ugd/0bfb20_c2fa7ea45f2e429c886e8d52a2efa794.pdf?index=true
- https://s3.amazonaws.com/lebaxa/sample_interview_conversation.pdf
- https://7c8f45b7-e058-4e27-bccd-8ee7dcb26900.filesusr.com/ugd/d5cf39_16672093ef5147ab811adadea9091dab.pdf?index=true
- https://1d942ef5-affb-47d8-8f99-70a3d187b733.filesusr.com/ugd/3283b0_00cc1a36e75d47f2a2d4b83b12fe0dc6.pdf?index=true
- https://eecb1da5-82b7-48ef-90e5-6a20895c07e7.filesusr.com/ugd/88a84f_996643f9ee9a40c0b1e6a1ab48272115.pdf?index=true
- https://27dd58ca-3bab-4825-b0a2-cb75a9f796de.filesusr.com/ugd/aba4c5_12ce860785134d8786d35a385fce2ae9.pdf?index=true
- https://s3.amazonaws.com/mexavofezoxi/tutif.pdf
- https://a68e2ff5-bf17-48e3-82d4-ceb975b85758.filesusr.com/ugd/760101_71e80fc499274d619ab3a75bc50df0ea.pdf?index=true
- https://ed0f7819-48b4-4c0d-9119-93de03d81b9c.filesusr.com/ugd/e481ce_9b8e405c15214cef8820aeeab3ddca82.pdf?index=true
- https://f3ea461b-95fd-44cf-949c-5afda193840f.filesusr.com/ugd/a48928_262dd79d0eab4770a692a6044f9d3972.pdf?index=true
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010dbd.bin0c0f96b95cee39ec8a0ab40d29d493d15b467c252bbf98e833d2d51eb5a074a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DBD | 5632 bytes |
font_01_sfnt_off000120e7.bin44577d2da1673a62190187d2fc075d5c7995ff45bcb381f4c55f00cbd43fc5a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120E7 | 15224 bytes |
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