PDF malware analysis — malicious · 8cbfae8d5f381d68

MALICIOUS

PDF

25.8 KB Created: 2006-02-01 14:14:12 Authoring application: Wegoptyr (via HghTc6Fs)

MD5: 58d96a043ace6d34631c04f76ddccf2d SHA-1: 7a778fc4a4a50072c7bad3c507bb759f86e415d7 SHA-256: 8cbfae8d5f381d68d52e6b4406a0ef154dd0c8c173c3b3352803457dc3c638ef

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript streams, with one heuristic firing indicating an eval() call, suggesting code execution. The ClamAV detection 'Pdf.Dropper.Agent-7281020-0' strongly indicates a dropper functionality. The obfuscated JavaScript is likely responsible for downloading and executing a secondary payload, which is a common tactic for malware distribution.

Heuristics 5

ClamAV: Pdf.Dropper.Agent-7281020-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7281020-0
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `54ed6f928f697e71ec45d905622ff153aab0f2c31410aa10c44c1400f184cfcf`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1EE	25333 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`javascript_obj0007_001.js` `bb7e596d94dd13a34fe7564bdeb90034a9ffb6d9091c68909838e05481c2ed81`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1EE	25058 bytes

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