MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many of which are to benign-looking PDFs, suggesting an SEO link farm or a phishing lure disguised as a worksheet. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious activity, likely related to spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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://vilenefex.ru/123?utm_term=inscribed+polygons+worksheet+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4412382/normal_60419bd846564.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4482206/normal_6035733168dbc.pdfIn PDF document text
- https://maruvape.weebly.com/uploads/1/3/4/8/134854924/aab130.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4390381/normal_5fc8e98de1021.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369653/normal_5fcd8e2736a9f.pdfIn PDF document text
- https://ritixalasan.weebly.com/uploads/1/3/4/2/134265532/865617.pdfIn PDF document text
- https://winugemu.weebly.com/uploads/1/3/1/0/131070294/novidubivak.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.thdl.org/http://www.thdl.org/TibetanIn PDF document text
- https://s3.amazonaws.com/nitidadufetenu/what_atoms_have_the_largest_radius.pdfIn PDF document text
- https://s3.amazonaws.com/dezajok/56123729307.pdfIn PDF document text
- https://s3.amazonaws.com/fadupazageraf/10829119322.pdfIn PDF document text
- http://wuvadik.rf.gd/46978180694.pdfIn PDF document text
- http://fepesori.rf.gd/95542099884.pdfIn PDF document text
- https://s3.amazonaws.com/gapuruxumeg/kusowekasuzefepujipenara.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/42ca835b-40d2-46c4-8557-b25d3fbf42e1/suvifenonomexekem.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dedbefdc-7983-4f23-9c06-cb95397023fe/caracteristicas_de_lg_g2_mini.pdfIn PDF document text
- http://nakofat.epizy.com/what_is_the_difference_between_discipline_and_punishment.pdfIn PDF document text
- https://s3.amazonaws.com/pulavokaxe/mumps_orchitis.pdfIn PDF document text
- https://s3.amazonaws.com/jixerubowi/36683486108.pdfIn PDF document text
- https://s3.amazonaws.com/wetowuzuxit/26802296765.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmlTibetanIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 6
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f3d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3D4 | 8900 bytes |
SHA-256: 04d266b012e5a5cfe5a2dee9b06a8bc6252254cb8a1c4d60bad65c00ab56a6fe |
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font_01_sfnt_off00010b89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B89 | 2388 bytes |
SHA-256: 9191209dcbf1948c87e8f19a7e8572c1c7da559b879a0d122c9ff043eb08f627 |
|||
font_02_sfnt_off000115f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115F9 | 5540 bytes |
SHA-256: eab853653bfcbd08240e25689c6914fce75c5fb8dfe9bfbf3eac89f24afae1fe |
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font_03_sfnt_off000128f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128F1 | 8544 bytes |
SHA-256: aea1749ee035a8088c539db0e0ec7e902f05647c987b74b30b2b0c810e37b897 |
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font_04_sfnt_off0001397f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1397F | 11552 bytes |
SHA-256: ce29b10f80abc5173ccd79779a1f0df6cca7cbc4c3016a589f78791908688cae |
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font_05_sfnt_off000160e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x160E1 | 16260 bytes |
SHA-256: 63eab90c207938641ab150824bc239f6c9df6b6f878babf4a6afcfc6c56504be |
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