MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is identified as malicious by multiple heuristics and an ML classifier, with ClamAV detecting it as a phishing trojan. It functions as a link farm, embedding numerous external URLs, with a primary suspicious URL being https://midufefew.ru/strik?utm_term=why+go+into+fp%2526a. The PDF structure and embedded links suggest an attempt to direct users to potentially malicious content or for SEO manipulation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://midufefew.ru/strik?utm_term=why+go+into+fp%2526a PDF link annotation
- https://befunopokoxa.weebly.com/uploads/1/3/5/3/135327779/9381062.pdfIn PDF document text
- https://penuwepilaxol.weebly.com/uploads/1/3/4/7/134756509/2900794.pdfIn PDF document text
- https://tufobedix.weebly.com/uploads/1/3/4/4/134431979/zugarobu.pdfIn PDF document text
- https://lavivatum.weebly.com/uploads/1/3/1/4/131437335/997cb21a.pdfIn PDF document text
- https://cdn.sqhk.co/kujusiru/UmIfsOv/business_accounting_software_free.pdfIn PDF document text
- https://fadefufogu.weebly.com/uploads/1/3/5/9/135960472/fojebokudobi.pdfIn PDF document text
- https://cdn.sqhk.co/fedefuxu/a8V4Xhb/adventure_landing_water_park_groupon.pdfIn PDF document text
- https://cdn.sqhk.co/kosojilufut/gfKymia/new_york_city_travel_guide_blog.pdfIn PDF document text
- https://cdn.sqhk.co/boguzivipel/edGOlyA/dog_cable_runner_ideas.pdfIn PDF document text
- http://nupifijaw.getenjoyment.net/retukixo.pdfIn PDF document text
- https://cdn.sqhk.co/rokabumake/HdAq5hf/502935959.pdfIn PDF document text
- http://sosiwawivijomo.scienceontheweb.net/wedefelugur.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://uploads.strikinglycdn.com/files/db970e47-3a7b-46b5-9d30-9eb95ce1da7a/44506807185.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/56c53f5c-78eb-4200-ad65-ef3f2d755b81/harry_potter_book_review_blog.pdfIn PDF document text
- http://bamonoxo.onlinewebshop.net/al_arabiyyah_bayna_yadayk_book_1_english_translation.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/11816af3-23ab-4b63-b66c-75f36869b5d8/disney_california_adventure_opening_day_attractions.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/85de4de5-a4ee-4459-8af8-94c36116fc4c/army_field_manual_small_unit_tactics.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3499f097-dfc9-4bb2-8fc5-c483e960d43e/rakujajarugegoro.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1962ae25-0355-4fe4-aa2f-0d80f460ee11/75381734509.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bb5278ff-ae73-4517-8a09-8c8cda12dec7/cant_stop_wont_stop_like_diddys_song.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_off000108b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108B4 | 4432 bytes |
SHA-256: 91d57825df65e74a446ba23d96281937661851a406e2f46b259fae5ee472edef |
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font_01_sfnt_off000117d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117D1 | 11432 bytes |
SHA-256: 220b314a88f2bb033556d139e6285eb02d4ee8b25bebbe5522eb2376e9f6dbd5 |
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font_02_sfnt_off00013e87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E87 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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