PDF malware analysis — malicious · 2ed3080a2ec15463

MALICIOUS

PDF

6.5 KB Created: 2008-31-20 53:85:00 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 902cfaca08acf80ddfda535f4238d4b2 SHA-1: 6ad3db1c8b59f820350e46343faadd7278a8c9b1 SHA-256: 2ed3080a2ec15463bfd41cdfeea1361fb28042ff704c191feb70c13eca76fe4a

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript with multiple eval() calls, indicating obfuscation and dynamic code execution. The ClamAV detection 'Pdf.Exploit.Agent-35587' strongly suggests a known exploit. The JavaScript is heavily obfuscated, but the presence of eval() and the ClamAV signature point towards an exploit attempting to download and execute a secondary payload. The document body contains fragments of what appears to be obfuscated JavaScript code, including string concatenations like 'Math.'+'ceil' and 'String['+'fromCharCod'+'e']', further supporting the dynamic execution of malicious code.

Heuristics 6

ClamAV: Pdf.Exploit.Agent-35587 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35587
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `c0532e5e150db999c172296884b2c306e806df95642e8aa8bec26315636fa7d2`	pdf-javascript-stream	PDF /JS object 13 at offset 0x390	5088 bytes
Detection ClamAV: Pdf.Exploit.Agent-35587 Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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