PDF malware analysis — malicious · bcffb6db706016fa

MALICIOUS

PDF

14.7 KB Created: 2008-07-26 19:43:58 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 6c9716486386aab3187f99da87ff77da SHA-1: ffd0cbf7468ff139f218756c71ee255673d6fc66 SHA-256: bcffb6db706016fad0d7fc6014357f202547bccf328772fbbdb5f7b35d554a80

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file contains embedded JavaScript with multiple obfuscation techniques, including string concatenation and the use of eval(). Heuristics indicate PDF JavaScript actions and eval() calls, and ClamAV detected it as Pdf.Exploit.Agent-36118. The script's primary function appears to be downloading and executing a second-stage payload, as suggested by the eval() calls and the embedded JavaScript stream.

Heuristics 5

ClamAV: Pdf.Exploit.Agent-36118 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36118
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_000.js` `c7a889901d584cb9a6fa571ac7d10d69cf64d11e99540155ba2a27f2ba2aa4f1`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13465 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 6 long base64-like blob(s).

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