Pdf.Dropper.Agent-7212448-0 PDF malware analysis — malicious · 4e7e922a5941ff53

MALICIOUS

PDF

11.4 KB Created: 2009-08-13 17:57:38 Authoring application: LJXwfyuSbIVZZsVmmlqgL (via jbbfdShgCJMNee)

MD5: e745454ecb3bb27d4d66702673715a74 SHA-1: ba8e71e4dc2da098e2f95e8eb89feb867ab9ee03 SHA-256: 4e7e922a5941ff53af89abae3470c9d962a939312bbff9ac6d8a663a4718073d

118 Risk Score

Malware Insights

Pdf.Dropper.Agent-7212448-0 · confidence 95%

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as Pdf.Dropper.Agent-7212448-0. Static analysis revealed embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS heuristics, and the use of String.fromCharCode, suggesting obfuscation. An extracted JavaScript file, javascript_obj0007_000.js, was also identified as a suspicious artifact. The presence of these elements strongly indicates the PDF's purpose is to execute malicious JavaScript, likely to download and execute a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Dropper.Agent-7212448-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7212448-0
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `678f17b4ae4be05d54f3321816660488f5c02d951118fd9be300206da05aa6b7`	pdf-javascript-stream	PDF /JS object 7 at offset 0x4BE	9682 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 36 long base64-like blob(s).

Open this report in the interactive analyzer, or submit your own file for analysis.