MALICIOUS
84
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The critical ClamAV heuristic identifies this file as 'Pdf.Dropper.Agent-7250955-0', indicating a known malicious PDF dropper. The presence of PDF_JAVASCRIPT and PDF_JS heuristics confirms the use of embedded JavaScript. While the specific JavaScript content was not fully detailed in the provided evidence, its presence in a dropper PDF strongly suggests it is used to download and execute a secondary payload, a common technique for malware distribution. The deobfuscated JavaScript, though large, likely contains the logic for fetching and running the next stage.
Heuristics 4
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ClamAV: Pdf.Dropper.Agent-7250955-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Dropper.Agent-7250955-0
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JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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syncAnnotScan annotation-staging primitive low PDF_FOXIT_SYNCANNOTSCANPDF JavaScript calls syncAnnotScan() — a no-op annotation-enumeration primitive used by exploit-kit JavaScript to stage payload reads from annotation /Subject fields before eval(). Not a vulnerable sink itself; rarely seen in legitimate PDFs. (matched in decompressed stream)
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
javascript_obj0005_000.jsa3319192cac6d4dc4eeb6af2d736b0ffec979b23116a003bc7c23382761c32a5 |
pdf-javascript-stream | PDF /JS object 5 at offset 0x148 | 733 bytes |
deobfuscated.js31ec2f45c73601eadb90c67b0cf002593ecc4a7d0ad41eedb0fb743f50f8d130 |
deobfuscated-js | PDF JavaScript deobfuscation pass | 4213 bytes |
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