MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous external URIs, with one pointing to 'nipisod.ru', a domain flagged as potentially malicious. The document body, though heavily obfuscated, suggests a lure related to 'heat transfer by radiation', likely a pretext to direct users to malicious content. No scripts were extracted, but the presence of external links and the overall detection profile strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 5
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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://nipisod.ru/wix?keyword=give+5+examples+of+heat+transfer+by+radiation PDF link annotation
- http://xefopuro.mypressonline.com/xugegivanesu.pdfIn PDF document text
- http://xilenemivagola.mywebcommunity.org/2nd_order_differential_equation_practice_problems.pdfIn PDF document text
- http://fetedeju.mygamesonline.org/online_auction_system_project_report.pdfIn PDF document text
- https://cdn.sqhk.co/zevivovakok/hgQhdwg/66455486441.pdfIn PDF document text
- http://pesowulil.iblogger.org/neruz.pdfIn PDF document text
- http://gixipures.sportsontheweb.net/segolexixux.pdfIn PDF document text
- http://bobutukaboxavaj.iblogger.org/zajesivugufulep.pdfIn PDF document text
- https://cdn.sqhk.co/vejuwipem/icz80em/redazenimuviz.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://ffb80149-315c-4936-8637-e87477b606fc.filesusr.com/ugd/e7410d_eb4be3bd35de46ec976e09a6507584b1.pdf?index=trueIn PDF document text
- http://xuwolerapole.epizy.com/metal_gear_solid_5_ps4_part_1st_mission.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/873836b8-ff74-48e2-9c77-b4e1131b4ba6/turned_wood_mallet_plans.pdfIn PDF document text
- http://bigagapafobari.rf.gd/free_printable_colouring_sheets_for_adults.pdfIn PDF document text
- https://s3.amazonaws.com/tumasun/50058654042.pdfIn PDF document text
- https://s3.amazonaws.com/vuterijoze/what_is_the_best_music_to_dance_to.pdfIn PDF document text
- http://zenejifawulo.epizy.com/roomba_560_parts.pdfIn PDF document text
- https://s3.amazonaws.com/farezelof/airdata_multimeter_adm-_860c_manual.pdfIn PDF document text
- https://f05e0dbb-21cf-40ea-8b71-00b8d6f49a3b.filesusr.com/ugd/b09e1d_0216c6b6dfc84afbbca7392788e71a79.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/7ac6c6be-2c00-4eb8-8160-aeef5589f3f0/wd_tv_media_player_alternative.pdfIn PDF document text
- https://6cdf8c5e-36a0-4b6d-987f-32d3d50030cd.filesusr.com/ugd/3c2e2e_f42d01ab286342e4af31de9fc2aa681c.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/4c4f8b20-a914-4cce-88c6-32b61c296add/how_long_to_cook_vegetarian_chili_in_slow_cooker.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9626753e-e28e-40f6-a523-3705d9fc2b32/padel.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_off0000ebfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBFC | 5808 bytes |
SHA-256: 7dc0653c118c7794b99e3f32d617dd766b3e39b93f7dacd755566b1393a55d03 |
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font_01_sfnt_off0000ffa7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFA7 | 10768 bytes |
SHA-256: 60a18d024ae8a19bb917b0ee86dd24a0e064e86690213e01bc61448b50efeed7 |
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