PDF malware analysis — malicious · a13295f9785af830

MALICIOUS

PDF

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

MD5: 5e29f6920b857b5d424dbd83c5592ece SHA-1: a4d6702a2280baefc288b006e4102128e2153f4e SHA-256: a13295f9785af830c95e3e0902cb5486f75825e683caa305edfce5fc21181797

158 Risk Score

Malware Insights

MITRE ATT&CK

T1027 Obfuscated Files or Information T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript streams, with critical heuristics indicating the use of eval() and unescape() for obfuscation. The ClamAV detection 'Pdf.Exploit.Agent-11815' strongly suggests a known PDF exploit. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, as indicated by the obfuscation techniques and the presence of multiple large JS files. The authoring application 'tvEeSFCPx' and creation date '2009-05-01' are also noted.

Heuristics 6

ClamAV: Pdf.Exploit.Agent-11815 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-11815
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` `f92a50254ab2b1eaa59dd1ecfd15311cb42c6296a112060484a92106a782df72`	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` `95dcef8e19ed59b2bfc32921601f80f596e84df13892a04d629d5aee360ee786`	pdf-javascript-stream	PDF /JS object 7 at offset 0x215	35039 bytes

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