MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to numerous external URLs, many of which are PDFs themselves. The presence of embedded URLs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://huntic.ru/uplcv?utm_term=private+instagram+viewer+without+human+verification+2021 PDF link annotation
- https://ferest.ro/imagini_ws/41119746186.pdfIn PDF document text
- https://libyamonitor.com/sites/all/libraries/ckfinder/userfiles/files/3642428102.pdfIn PDF document text
- http://rootbeadmill.com/upload_fck/file/2021-9-12/20210912163522789564.pdfIn PDF document text
- http://islandpointfl.com/userimages/fulokirepobute.pdfIn PDF document text
- http://antitumor.org/filespath/files/20210919061417.pdfIn PDF document text
- https://ww150003.linebot.net/upfile/files/20210914063812.pdfIn PDF document text
- http://adhunikjewellers.com/ckfinder/userfiles/files/busoporuf.pdfIn PDF document text
- http://lokalizacja-gps.pl/userfiles/file/42088312739.pdfIn PDF document text
- https://balarampurblock.in/ckfinder/userfiles/files/kanofuwimuwomepej.pdfIn PDF document text
- http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/161447457240f8---11256970468.pdfIn PDF document text
- http://sicompk.com/survey/userfiles/files/zoxixukijon.pdfIn PDF document text
- https://intersensor.ro/v2011/Files/fck_upload/file/kebosabobajizopuzudabe.pdfIn PDF document text
- https://anukulagrotech.com/ci/userfiles/files/texetajepamofasiboxivu.pdfIn PDF document text
- https://gres-k.cat/userfiles/file/82313060178.pdfIn PDF document text
- http://aitrans.cn/UploadFile/file/F1202109021031384751.pdfIn PDF document text
- https://wineart.online/userfiles/file/nemigawebowurozubejod.pdfIn PDF document text
- http://www.rannatennis.ee/data/upfiles/files/fodabukuzibo.pdfIn PDF document text
- http://naturpix.ch/cmsimages/file/57755141223.pdfIn PDF document text
- http://elite-nails.pl/Upload/file/xuxijadifuza.pdfIn PDF document text
- http://checopharma.com/upload/files/mubakepunafoliji.pdfIn PDF document text
- https://walkandsmile.com/userfiles/file/vipedidolodi.pdfIn PDF document text
- http://shouce-image.kuchuancdn.com/Public/resource/files/mowipemegafanav.pdfIn PDF document text
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/161392b53c5b7f---82387458009.pdfIn PDF document text
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614c6aa173110---39950470957.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://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_off0000b307.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB307 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cb19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB19 | 14468 bytes |
SHA-256: fed4290a2c91373afa38a96a627b7807819fcdd5f4272393f251cd2f78407446 |
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font_02_sfnt_off0000ef1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF1E | 11284 bytes |
SHA-256: 16f6e13b35ab8c8feda0cbc934ab87e9ef08c2cae5213209adcbfd36e3e68f64 |
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