MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains heuristics indicating it is a phishing document and attempts a 'ClickFix' social engineering attack, instructing the user to run a command. The embedded URLs, such as 'https://xezojetit.ru/strik?utm_term=cmd+commands+internet+not+working', suggest a malicious intent to redirect the user to a potentially harmful site. The presence of multiple external PDF links also points towards a link farm or redirection tactic.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 7
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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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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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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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://xezojetit.ru/strik?utm_term=cmd+commands+internet+not+working
- http://kakafeg.scienceontheweb.net/importance_of_reading_skills_in_communication.pdf
- https://static.s123-cdn-static.com/uploads/4376354/normal_6004989150ff2.pdf
- https://cdn-cms.f-static.net/uploads/4450419/normal_606365deb9593.pdf
- https://cdn-cms.f-static.net/uploads/4483354/normal_60445ead4f8ff.pdf
- https://static.s123-cdn-static.com/uploads/4488570/normal_5fcb73f9d8b65.pdf
- https://cdn-cms.f-static.net/uploads/4388818/normal_604d0a0f71384.pdf
- https://static.s123-cdn-static.com/uploads/4495838/normal_5ffbbdb19e8df.pdf
- https://cdn-cms.f-static.net/uploads/4477369/normal_6055683a41177.pdf
- https://cdn-cms.f-static.net/uploads/4481053/normal_5fd5f251304e4.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/4b6da9f0-cab2-4578-b3c3-07abae18a87f/game_of_life_conway_gif.pdf
- https://uploads.strikinglycdn.com/files/006e8375-f6f4-409c-8334-d94d588c8065/durexupili.pdf
- https://uploads.strikinglycdn.com/files/ce3e01eb-131d-488c-9c7a-12c7433e92d5/16570239035.pdf
- https://uploads.strikinglycdn.com/files/637fa76d-97bb-421d-87d0-5200f1222d40/givakebupuda.pdf
- http://letutemoxeluz.onlinewebshop.net/vegobufixenetugigire.pdf
- https://uploads.strikinglycdn.com/files/b863c2e4-ab4a-4b36-a589-83d3109b3faa/7165179054.pdf
- https://6376acfe-5884-4251-b3d5-19a03c044549.filesusr.com/ugd/de3d83_9ac86e9ef9964cbea563ee1336353482.pdf?index=true
- http://zivexotafoni.myartsonline.com/78433978403.pdf
- https://901c4554-6fda-40bf-8344-1f1538f5dc06.filesusr.com/ugd/a76634_eea337e9a57e40cf8c03a8ec35f26e7d.pdf?index=true
- https://fa90eb46-aa9b-4fd1-a2e8-e903ec8e50a4.filesusr.com/ugd/575fb0_35afe95cdc3e44d8a2068cc86af0c3b3.pdf?index=true
- https://eac5c218-d238-408c-98a6-8ff0ecbb25fc.filesusr.com/ugd/b1277d_499a8eaee7674770af30710778113c6a.pdf?index=true
- https://uploads.strikinglycdn.com/files/3d8ecff2-7ed7-43cd-8c3f-9364d7d7851e/49346988520.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://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f8d0.binf397df1e7d92d3853f1a5494862a1376b9774bc08cd3476b1e625e6fa2520bb8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8D0 | 5288 bytes |
font_01_sfnt_off00010abd.bina36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ABD | 1800 bytes |
font_02_sfnt_off0001134a.bind33e80aef15266a8c626748982df8bbace9006c2c3f34e383adf7c47eef8e2f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1134A | 10760 bytes |
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