Pdf.Dropper.Agent-7309902-0 PDF malware analysis — malicious · d72b4c831928ee97

MALICIOUS

PDF

4.1 KB

MD5: 5a5b1b18a635771ccdfaa5b3986113af SHA-1: 2dcc59a821916c4f825fac04900be0bbb58d81ad SHA-256: d72b4c831928ee97ae682339601a4e40ef31e30339c99204e642cf84983e2a43

126 Risk Score

Malware Insights

Pdf.Dropper.Agent-7309902-0 · confidence 95%

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by multiple PDF_JAVASCRIPT and PDF_JS heuristic firings. The critical PDF_EVAL and PDF_FROMCHARCODE firings, along with the presence of deobfuscated JavaScript files, suggest that the script is designed to execute arbitrary code. The ClamAV detection of 'Pdf.Dropper.Agent-7309902-0' further supports this, indicating a dropper functionality. The script likely downloads and executes a second-stage payload.

Heuristics 6

ClamAV: Pdf.Dropper.Agent-7309902-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7309902-0
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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. (matched inside decoded stream)
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `07a509f5a3fce05708eadb220ee03fa49abcea5ada7fc002abd674568b5e1f28`	pdf-javascript-stream	PDF /JS object 13 at offset 0x368	6457 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`acroform_b64_00.js` `ad248a4b7a173ef273e43644e244682c728c17092a56c7510d9f3b749e807699`	deobfuscated-js	PDF AcroForm base64 (decompressed) at offset 0x99D	3688 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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