MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, containing numerous external URLs, many hosted on disposable domains like weebly.com. The primary purpose appears to be directing users to potentially malicious or phishing content, leveraging a spearphishing attachment vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://crewmak.ru/pbw?utm_term=after+novel+online+read
- https://sozulidalipidin.weebly.com/uploads/1/3/1/4/131437061/jozulubexuratozekeg.pdf
- https://govopejixaw.weebly.com/uploads/1/3/7/5/137514815/9a9a6ee9e70.pdf
- https://cdn-cms.f-static.net/uploads/4470543/normal_6039fdc9e23e2.pdf
- https://wonidajubiput.weebly.com/uploads/1/3/4/0/134017859/befe747f5795.pdf
- https://cdn-cms.f-static.net/uploads/4459641/normal_5fda41a0d4f37.pdf
- https://wivetagimogik.weebly.com/uploads/1/3/4/6/134618772/ea26026ae.pdf
- https://wekijoborumotis.weebly.com/uploads/1/3/4/4/134484899/9aea4beb.pdf
- https://wimegipovuxu.weebly.com/uploads/1/3/4/3/134373819/d42d9.pdf
- https://kasesutibut.weebly.com/uploads/1/3/4/0/134017634/fobudizi_kemuxizudin_tiwosekopumevuv_gevewere.pdf
- https://duzezefoge.weebly.com/uploads/1/3/1/4/131437668/lurefolexefitu-xukiben-rumononadamati.pdf
- https://cdn-cms.f-static.net/uploads/4366408/normal_6037b96ae97ad.pdf
- https://cdn-cms.f-static.net/uploads/4455399/normal_6063595e09634.pdf
- https://cdn-cms.f-static.net/uploads/4448540/normal_60133759548cf.pdf
- https://cdn-cms.f-static.net/uploads/4378623/normal_6015ff2b9e995.pdf
- https://wevubajapema.weebly.com/uploads/1/3/5/9/135958203/linur-murulowuto-zanazuxubug-nikufolujiro.pdf
- https://bimelubisazabe.weebly.com/uploads/1/3/4/4/134492892/fiwumotowew.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://zuvuzut.pbworks.com/f/us_dollar_chf_umrechner.pdf
- https://uploads.strikinglycdn.com/files/c4017d43-b481-40da-b9c2-12d2f0b40f47/14935936524.pdf
- http://febevolojezu.pbworks.com/w/file/fetch/144827319/26706602406.pdf
- https://uploads.strikinglycdn.com/files/bdaee117-b152-4da6-981f-842b7a8f5ec1/how_to_set_up_interval_training_on_garmin_vivoactive_3.pdf
- http://paderukut.pbworks.com/f/fosetafeganaji.pdf
- https://uploads.strikinglycdn.com/files/f5247f5e-66b6-423d-b42a-1675bea02e82/kenmore_80_series_dryer_issues.pdf
- https://uploads.strikinglycdn.com/files/5d35fc71-cb8d-4203-afe0-c4c41134fc16/nonarorewuruxir.pdf
- https://uploads.strikinglycdn.com/files/3c2951c9-ead5-44dd-a872-37c7ddded981/1601251308.pdf
- 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_off0000d587.bind85d7f7a31e4030bf67628596927272f5d8032df9f46c29ad2dafb1b7e65c5a3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD587 | 4772 bytes |
font_01_sfnt_off0000e5db.binfc141546f1a1a5901c4508601a3f57e42a4b40eb5f3ee75eeff0b387a0f54bda |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5DB | 9848 bytes |
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