PDF malware analysis — malicious · eec90819467b6fe0

MALICIOUS

PDF

35.5 KB Created: 2009-05-01 21:21:45 Authoring application: tvEeSFCPx (via NeTSnrx)

MD5: 4f22f04860d82695759eb4122e6fa2e1 SHA-1: d54d96f6c37ad9d9c7f7051a2dd9224543a498f8 SHA-256: eec90819467b6fe0f4140ac192576d2cb0a7794906ea961bf8e0db26908a9fb6

158 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1027 Obfuscated Files or Information

This PDF file contains embedded JavaScript that utilizes obfuscation techniques, including eval() and unescape() calls. The presence of these functions strongly suggests the script is designed to deobfuscate and execute malicious code, likely downloading and running a second-stage payload. The ClamAV detection ID 'Pdf.Exploit.Agent-14538' further confirms its malicious nature. The obfuscated nature of the script prevents a more detailed analysis of its specific actions.

Heuristics 6

ClamAV: Pdf.Exploit.Agent-14538 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-14538
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits
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.
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_obj0007_000.js` `9bb620463b1e79bfbb5ffeaf17a0e76e91c711a20335115ca8a4d29c4cb52e1a`	pdf-javascript-stream	PDF /JS object 7 at offset 0x215	35126 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`javascript_obj0007_001.js` `9fe83eb85a3999b0169dd0dd11577ec1bdaf1f926956ae4844ef147f9fd09a64`	pdf-javascript-stream	PDF /JS object 7 at offset 0x215	35039 bytes

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