MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file flagged by multiple heuristics as malicious, including a critical finding for linking to known malicious redirector infrastructure. The embedded links, such as 'https://yafferge.ru/wix?keyword=the+rithmatist+2', are designed to lead users to potentially harmful sites. The ML classifier and ClamAV detection further support the malicious classification, indicating a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://yafferge.ru/wix?keyword=the+rithmatist+2 In PDF document text
- https://static.s123-cdn-static.com/uploads/4454803/normal_5fe55d266c7df.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374002/normal_601dd3b03f235.pdfIn PDF document text
- http://kizefet.iblogger.org/dozikotewete.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4500447/normal_5fff6c0e6713a.pdfIn PDF document text
- http://wonder-ita.space/behringer_reference_amplifier_a500_review28bce.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446651/normal_5fd7dbb028ed5.pdfIn PDF document text
- http://lnstagramcopyrightcenter.com/9741785643e99k5.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/df41bc7d-665e-4f6e-bef2-93436a6ad2f8/how_much_does_family_dollar_pay_an_hour.pdfIn PDF document text
- https://s3.amazonaws.com/rojalexipokadaz/why_is_my_tivo_remote_blinking_red.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0c6b4f69-2101-4925-841d-9a85a1bbe0a4/why_is_my_portable_charger_not_working.pdfIn PDF document text
- https://d5fb4b5d-766d-4e54-ab1c-ecc61d2b7d82.filesusr.com/ugd/b0c8dc_d7dcc6b5404841cdac2f1af709b8f48c.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/ca4ba8ef-aad4-4136-840c-03f7df373535/the_secret_of_underground_medicine_book.pdfIn PDF document text
- https://s3.amazonaws.com/sefipa/every_mans_battle_audiobook.pdfIn PDF document text
- https://d80868e2-5d34-4dda-9345-0396294a35aa.filesusr.com/ugd/f9fac6_8789d6269a5846888be9ef40a1cd3cd6.pdf?index=trueIn PDF document text
- https://eeeff038-21f9-42a6-bde0-cd945221d618.filesusr.com/ugd/9dc459_33572cc247ee4b15995eee9b01303064.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/799c1b6b-c8f0-4d22-9992-b81955fc6ca7/what_does_red_light_mean_on_directv_remote.pdfIn PDF document text
- https://97a45c9e-1ab5-462a-bfe2-fded34b9a8b9.filesusr.com/ugd/b50c55_e3b8faa458274ad2865fe8210bc26a2c.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/sefipa/freelance_interior_design_jobs_in_kolkata.pdfIn PDF document text
- http://dusetelonuzaj.epizy.com/catia_v5_export_formats.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ee31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE31 | 4976 bytes |
SHA-256: a7ebe4d016a1860882c39144df90eae0e4ac2bd3751d6eb738067b627fc6e551 |
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font_01_sfnt_off0000fee4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEE4 | 11920 bytes |
SHA-256: 76ea074df6441e407818013744c01eab9de65ab71e1aa52989ee2eb9514e866e |
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font_02_sfnt_off000127ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127EA | 16060 bytes |
SHA-256: ae97ebdbf5cb6679ee3ae7f6f8963da9ec2437ada1f672a33085bc8cbe806833 |
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