MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous embedded URLs, many pointing to disposable hosting, and is identified as a link farm. The presence of external URIs and the overall structure suggest a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://synerhu.ru/uplcv?utm_term=driving+test+questions+and+answers+2020 PDF link annotation
- http://123podkrovie.sk/editor_uploads/files/868793034.pdfIn PDF document text
- http://cleangroupbd.com/ck/upload/files/71592645405.pdfIn PDF document text
- http://midoriku.zaitakunet.jp/app/webroot/upload_images/files/mirelanizu.pdfIn PDF document text
- https://xn--22ck6bdp5cach0mc23a.com/ckfinder/userfiles/files/70134830821.pdfIn PDF document text
- http://geomanteia.com/userfiles/files/74901821803.pdfIn PDF document text
- http://abwva.com/uploads/files/xapuwafizal.pdfIn PDF document text
- http://labonscafe.com/userfiles/lakorilumekodi.pdfIn PDF document text
- http://e-instar.com/userfiles/file/72309189881.pdfIn PDF document text
- http://tokstar.com/_UploadFile/Images/file/negiwomil.pdfIn PDF document text
- http://tuvantindat.com/uploads/2021-09-25/images/files/zukifot.pdfIn PDF document text
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614fd7fcce542---lenelafuvumixelosutadi.pdfIn PDF document text
- http://szentdorottyapatika.hu/files/sidarivuditi.pdfIn PDF document text
- http://bbfederico2.net/userfiles/file/jasukuxifodesajidulav.pdfIn PDF document text
- https://indirimlipin.com/calisma2/files/uploads/jesimaxomavodobu.pdfIn PDF document text
- http://labradory.pl/file/97607470022.pdfIn PDF document text
- http://ysmenmidwestindia.org/uploads/userfiles/file/file/39544483929.pdfIn PDF document text
- http://music-saikung.com/ckfinder/userfiles/files/68878743411.pdfIn PDF document text
- https://www.bevillelecomte.com/ckfinder/userfiles/files/pufewokibogaxexiwofoperim.pdfIn PDF document text
- http://chikatere.com/Upload/files/85851584704.pdfIn PDF document text
- https://derfo.info/resimler/files/48426900041.pdfIn PDF document text
- http://eventechsite.com/files/files/2620461121.pdfIn PDF document text
- http://wanyuantemple.tw/userfiles/file/24067884134.pdfIn PDF document text
- https://pre-www.bridge-academy.com/uploaded/ckeditor/files/zoxabozida.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_off0000d9c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9C1 | 18124 bytes |
SHA-256: cfbc087b5f80b59c403bc0540f0ad3c2bf60a6dfde9c1599ea6adb3f9fe27304 |
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font_01_sfnt_off00010887.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10887 | 11016 bytes |
SHA-256: e88acfc6175b10d712449f6b29bff0d44e24733fd5c85abc5bb072875a48c24d |
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font_02_sfnt_off000121e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121E7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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