MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It contains multiple external URIs and is identified as a link farm on disposable hosting. The presence of a remote-support lure suggests an attempt to trick the user into installing or running potentially malicious software. While no scripts were explicitly extracted, the PDF structure and embedded URIs indicate a phishing or malware delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://archism.ru/uplcv?utm_term=how+to+download+getinsta+app PDF link annotation
- http://4998horo.gmmwireless.com/contents/files/38382787954.pdfIn PDF document text
- http://thuocnam.xyz/images/files/36842519339.pdfIn PDF document text
- https://perfumes.dropship-tracking.com/userfiles/files/buxevewopufewomomip.pdfIn PDF document text
- http://viermaalh.nl/Bottesteyn/Site/afbeeldingen/file/33604113073.pdfIn PDF document text
- https://havadisname.com/upload/ckfinder/files/samuwekuxison.pdfIn PDF document text
- http://www.tobywells.org/media/fckdir/file/dakibiketejobegek.pdfIn PDF document text
- https://hotararicedo.ro/files/files/junaguzumijonikerijir.pdfIn PDF document text
- http://strandedtattoo.net/file/nopurefamo.pdfIn PDF document text
- http://probeg2000.ru/files/userfiles/files/zewamuzubaworesumew.pdfIn PDF document text
- https://thaiwoodengames.com/files/upload/files/82960196207.pdfIn PDF document text
- http://brkvinc.com/userfiles/file/xexonawofavovade.pdfIn PDF document text
- https://cplastik.cz/data/cms/file/4011404233.pdfIn PDF document text
- http://huthamcauquanggiap.com/upload/files/7240464293.pdfIn PDF document text
- https://nhabe.com.vn/ckfinder/userfiles/files/26888312104.pdfIn PDF document text
- http://olympicburger1988.com/uploads/files/ragugivusaje.pdfIn PDF document text
- https://isosklo.cz/uploads/mapudobos.pdfIn PDF document text
- https://aspit.ro/imagini_ws/bilalajisawavudufevurilo.pdfIn PDF document text
- http://lohoithaiduong.com/uploads/files/19145317832.pdfIn PDF document text
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec9159d31f---laxum.pdfIn PDF document text
- https://limsurdua.com/contents/files/84847561531.pdfIn PDF document text
- http://icloudcleaners.com/uploads/account/autoresponderfiles/71525470801.pdfIn PDF document text
- http://kerekesvillszer.hu/UserFiles/file/piwukuwuxidufo.pdfIn PDF document text
- https://marlin-aquarium.ru/ckfinder/userfiles/files/12416715396.pdfIn PDF document text
- http://www.its-dph.cz/admin/fckeditor/editor/userfiles/file/wokubezerovawi.pdfIn PDF document text
- http://dgxzz.com/uploadfile/file/80713885151.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_off0000bfb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFB5 | 10544 bytes |
SHA-256: e053dd81fb97524127b61604c952a7536a8d81598e22600c8cff6252b9ee31e9 |
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font_01_sfnt_off0000d7a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7A6 | 19552 bytes |
SHA-256: fbda812ce58ab32bb05cbb708da5181278681af65b42b6bb05763479b0016bbc |
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font_02_sfnt_off0001092c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1092C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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