MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document exhibits characteristics of a phishing lure, employing a link farm hosted on disposable domains to direct users to potentially malicious content. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs users to decrypt or access a password-protected archive, a common tactic to bypass gateway security. The presence of numerous external URLs and the ML classifier's high confidence score further support this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://ketchas.ru/uplcv?utm_term=face+unlock+android+11
- https://hv2barrier.com/application/third_party/ckfinder/userfiles/files/12518885263.pdf
- http://mikllc.mn/uploads/files/61573595411.pdf
- https://annekienlen.fr/imagesfile/lowubof.pdf
- http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16134e54c2e2c2---14672564432.pdf
- https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/c8032c2b9f4f662847a09fd9fb8573fb/tekizasuninudu.pdf
- https://apz-arte.com/ckfinder/userfiles/files/nagidilidivonojamiror.pdf
- https://polymadeniyaglar.com/fckeditor/userfiles/file/romuleduwaburuzovak.pdf
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/16135b9a42f6e4---80358258739.pdf
- http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/16137aeb8d7a79---95487819389.pdf
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130e8fb5b60b---fufamikifefupusilamabano.pdf
- https://cobrawire.com/userfiles/files/sigejunebon.pdf
- https://magicdiscoradio.com/userfiles/file/37220617562.pdf
- http://investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/lebapunoweruje.pdf
- https://jnvhardoi.org/ckfinder/userfiles/files/36517437234.pdf
- http://sunil.kr/uploadfile/fckeditor/file/sifizoxoju.pdf
- http://minerva-collection.net/files/files/59306350616.pdf
- http://atmaircenter.com/lb/userfiles/files/betalefizofegil.pdf
- https://kalashad.com/userfiles/file/62510383466.pdf
- http://mixmarketing.vn/upload/fck/file/88358865090.pdf
- http://smeeing.com/userfiles/files/49865338548.pdf
- http://fioredda.com/userfiles/files/4915778809.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://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d369.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD369 | 16792 bytes |
font_01_sfnt_off0000eb76.bin228445a3744f13af4bf84041e55802a923554d86926eb0745489ea117e4ab105 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB76 | 1888 bytes |
font_02_sfnt_off0000f43a.bin197c7887f31293e14ae6b01b37e937fc79348be5a046e06ba74779e49d452991 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF43A | 16632 bytes |
font_03_sfnt_off00010bd3.bin6c0d9019cb7db180a6c8a44577d69338009bbd1a49ba944d9002922bcdd4c786 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BD3 | 10316 bytes |
font_04_sfnt_off0001231f.bin77f223ba91b5b7496e3a7a19df5ce4a9d36f9840a07e7b051ae1d58fc9181dcd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1231F | 24420 bytes |
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