PDF malware analysis — malicious · 2adfed381cbcaeec

MALICIOUS

PDF

3.0 KB

MD5: 6976b972cf8f23214af34925f591021d SHA-1: 69e3596e3ca2c71cf605a09b345bc328e782f9ba SHA-256: 2adfed381cbcaeecad9a09f6e35cc7bfeffb44d7b4379049b2f2993777d837a2

86 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was detected by ClamAV as Pdf.Dropper.Agent-7243095-0, indicating it is a dropper. Static analysis revealed embedded JavaScript, including the use of String.fromCharCode, which is often employed for obfuscation. This JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for malware delivery. The lack of readable document body text and the presence of obfuscated scripts prevent a more specific family attribution.

Heuristics 5

ClamAV: Pdf.Dropper.Agent-7243095-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7243095-0
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. (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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0009_000.js` `cf3e098e4c950c763e27ea70b733a5afd403d9ebd1751f5e441a88edf1b6ece1`	pdf-javascript-stream	PDF /JS object 9 at offset 0xD6	21201 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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