MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1539 Steal or Harvest Credentials
The sample was flagged by multiple heuristics as a credential harvesting lure, specifically requesting recovery secrets or private keys. The ML classifier also assigned a high probability of maliciousness. While no scripts were extracted, the PDF structure and embedded URLs suggest a phishing attempt designed to steal sensitive user information.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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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Recovery secret / private key request critical SE_SECRET_RECOVERY_LUREDocument requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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 http://stromzeleny.cz/file/kugebosavibuta.pdf In PDF document text
- http://malir-naterac.info/UserFiles/File/48939053180.pdfIn PDF document text
- http://nusratali.com/userfiles/files/roremugejofotoko.pdfIn PDF document text
- http://osteriailgalloelinnamorata.com/userfiles/files/45823111576.pdfIn PDF document text
- https://menu2uplus.com/images/file/ruvuvovuvifawozoxe.pdfIn PDF document text
- https://wineart.online/userfiles/file/57583891993.pdfIn PDF document text
- http://www.morrisjones.co.uk/EditorImages/file/kiferituxupir.pdfIn PDF document text
- https://adikmanis.com/contents/files/wulujedodaxetanaxa.pdfIn PDF document text
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ff9094cc43---93183453664.pdfIn PDF document text
- http://jmk.kr/ckfinder/userfiles/files/30724594736.pdfIn PDF document text
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613d296bf0141---95647789059.pdfIn PDF document text
- http://primethailand.com/ckfinder/userfiles/files/26847953835.pdfIn PDF document text
- http://www.farmaciapenil.es/userfiles/files/87250235226.pdfIn PDF document text
- https://supportsystemsvainc.com/home/ssvi/public_html/ckfinder/userfiles/files/sosuvelelede.pdfIn PDF document text
- https://ryokanclub.com/FileData/ckfinder/files/20210908_486301920654BFA3.pdfIn PDF document text
- http://promocode.lu/userfiles/files/23195841636.pdfIn PDF document text
- http://indecomavo.pl/userimg/inc/59534656476.pdfIn PDF document text
- http://derkwoo.com/upload/editor/files/kidoboxedawi.pdfIn PDF document text
- https://www.mppoa.cloudlinesystems.com/assets/ckfinder/userfiles/files/58229276298.pdfIn PDF document text
- https://theloneranger.tv/clients/loneranger/ckfinder/userfiles/files/55745084594.pdfIn PDF document text
- http://www.tramag.pl/upload/file/49166621102.pdfIn PDF document text
- http://lingvastar.z-i-g-z-a-g.com/userfiles/files/xexidukik.pdfIn PDF document text
- https://dgssu.com/upfolder/e/files/20210901210523.pdfIn PDF document text
- http://villacappuccina.com/userfiles/files/11918147858.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=authenticator+wear+osPDF link annotation
- 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://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_off00011210.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11210 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00012a22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A22 | 21440 bytes |
SHA-256: 3782e7205146cb788c07ff3202604429e6bd0b9cccecbbc5a0eb682da374a8c5 |
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font_02_sfnt_off00016200.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16200 | 10448 bytes |
SHA-256: 2c9166e7c47032c7dc1f3b4ac1d12c6c33b8e3b6d7b87283859e1be7313ee004 |
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