PDF malware analysis — malicious · 9c7836305e7e6592

MALICIOUS

PDF

2.8 KB

MD5: 5dff0176c56fafa171701d417afa187a SHA-1: 50e97edd335ad8754649f3f461faba25f52ff8c2 SHA-256: 9c7836305e7e659241eb5717ba3dd81bf26fc52952d582013ff106b79883bf2a

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The presence of a PDF_EVAL heuristic firing suggests that the JavaScript is being used to execute arbitrary code, likely to download and run a secondary payload. The ClamAV detection of 'Pdf.Exploit.Agent-22286' further supports the malicious nature of the file. No specific malware family could be confidently identified.

Heuristics 6

ClamAV: Pdf.Exploit.Agent-22286 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-22286
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_obj111611_000.js` `edef98f5ddf1487063db416869a4cdbfa7357a638e6ae11ca81ca727b7581802`	pdf-javascript-stream	PDF /JS object 111611 at offset 0x197	257 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`javascript_obj111612_001.js` `27ca134f34731b1713a888da206d8541fec73ba6bd8cf9e3f529cedbb1617013`	pdf-javascript-stream	PDF /JS object 111612 at offset 0x267	3308 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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