PDF malware analysis — malicious · 39a7566841e055f6

MALICIOUS

PDF

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

MD5: 82c4280aeb773488cf476dea698e647e SHA-1: f0678ba69b3810854d020bab3996286e926914e8 SHA-256: 39a7566841e055f602cb82bee6436b636b95f21c5190f666ea52a7926ed1e97c

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. The critical ClamAV detection of 'Pdf.Dropper.Agent-7250477-0' strongly suggests a dropper functionality. The embedded JavaScript, despite obfuscation, likely facilitates the execution of malicious code, potentially downloading and running additional payloads, which is a common dropper behavior. The use of eval() and String.fromCharCode within the JavaScript stream points to dynamic code execution and obfuscation techniques.

Heuristics 6

ClamAV: Pdf.Dropper.Agent-7250477-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7250477-0
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `3fcb2c4838357b5ca61523b6d638a26e698f7d179041426b3cfb87471c940f6c`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3D2	12616 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.