PDF malware analysis — malicious · ce734eb1ffeda42c

MALICIOUS

PDF

8.7 KB Created: 2009-12-17 16:59:10 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: ce606294f556e8744d93b6816b93860e SHA-1: 1bb33154047bdd1e19085540d7af69e724119a71 SHA-256: ce734eb1ffeda42c5c2b119109889e6374018716966d3aa0eb4b7efb9e5bb009

176 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, PDF_EMBEDDED_SCRIPT_PAYLOAD, and PDF_EVAL. The script uses eval() and unescape() functions, suggesting obfuscation and dynamic code execution. The extracted artifact 'javascript_obj0021_000.js' is identified as a suspicious payload. The overall behavior points to a malicious PDF designed to exploit vulnerabilities and download further malicious content.

Heuristics 6

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
Embedded script payload in PDF stream high PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain script execution markers such as ActiveXObject/CreateObject, WScript.Shell, PowerShell, or shell-exec primitives. This is stronger than ordinary PDF JavaScript because it indicates a staged external script payload hidden in stream bytes.
Suspicious extracted artifact high 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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0021_000.js` `dd6d421c0a798a5fedb598a33b0acd5a0f814c2247599c3128e1dbafd243e7eb`	pdf-javascript-stream	PDF /JS object 21 at offset 0x1883	5883 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 shell/COM execution token(s). Carved artifact contains 3 eval/decoder/string-building token(s).

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