MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The PDF contains multiple heuristics indicating malicious intent, including a link farm on disposable hosting and a ML classifier flagging it as malicious. The presence of a 'download button' lure and instructions for a password-protected archive strongly suggest a phishing or malware distribution attempt. The ClamAV detection as 'Pdf.Phishing.Trojan' further solidifies this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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/award?keyword=baixar+pdf+free+portugues PDF link annotation
- http://ravovenovibu.medianewsonline.com/2021_ford_mustang_mach-e_california_route_1_horsepower.pdfIn PDF document text
- http://legrand-spb.ru/18382956563f3snu.pdfIn PDF document text
- http://mosomupusafebin.medianewsonline.com/balkanski_ratovi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4473039/normal_6044d26fb3532.pdfIn PDF document text
- http://carishr.com/yard_king_snowblower_10_29_reviewj5aui.pdfIn PDF document text
- http://russianstravel.ru/roluzigitedonitr7wxp.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4402949/normal_6011447fefd69.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://2987c0f4-171e-4473-b3f1-a5468658115b.filesusr.com/ugd/75ff8a_6d806650378544f09fbaf91f5352618e.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/4d2a4ba6-8387-4653-8c88-a554800f71b4/vtech_phone_cs6919_battery.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fca8212a-2474-4541-a195-3371cb4a538a/xisetalebog.pdfIn PDF document text
- https://113c517c-d7b0-4b36-99d7-6722bcb7ef36.filesusr.com/ugd/8e66a5_00c2546c2670457a9471aef0f197c8cc.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/b009e9ca-08f6-4373-addc-09d2c1263be5/64781242686.pdfIn PDF document text
- https://9d50af6f-dbf7-41ba-b854-83985329a12b.filesusr.com/ugd/33c377_2fbb8388df1945df953cdcc147e8e7d7.pdf?index=trueIn PDF document text
- https://b4e79a3f-0083-4b26-8056-4fe87fb46dfd.filesusr.com/ugd/332c1b_263319f2a6b345f7afa7abf28ccea9ca.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/paxunu/zupakuso.pdfIn PDF document text
- https://9a60fab3-6fb0-4be7-9305-b2e3cc44d963.filesusr.com/ugd/811c4f_65f9faf6fce34e00b4fa913a8bf9f5d7.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/bokexizometun/wixibolidazo.pdfIn PDF document text
- https://s3.amazonaws.com/saziwijaxodav/53319905637.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f7728243-0fca-4d90-a258-36f8c1f9ff30/cinemate_gs_series_ii_remote_control_codes.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e536.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE536 | 5072 bytes |
SHA-256: e0e37ea2caab687c1c36bdcdbd2bd2ebe1de7bdea5de2570dd52dbc317d34f25 |
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font_01_sfnt_off0000f694.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF694 | 12832 bytes |
SHA-256: 1aabafe6062de07fec1aa4f711a44d5b1a3477c3fa114be6c9a02fc53d22e7c9 |
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font_02_sfnt_off00011e12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E12 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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