PDF malware analysis — malicious · d337e2be988227ea

MALICIOUS

PDF

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

MD5: 6dc4ac10cccfc17e8457cc25c3567216 SHA-1: d6641cca6b64acae3a7cfa83780ef035038b9c7c SHA-256: d337e2be988227ea54e46876d237dc420b8a49351f2e729b2edf3588c4634e96

98 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.007 JavaScript

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, PDF_EVAL, and PDF_UNESCAPE. The JavaScript stream is obfuscated and utilizes eval() and unescape() functions, suggesting an attempt to hide malicious code execution. The primary intent appears to be the execution of this obfuscated JavaScript, likely to download and execute a second-stage payload or perform other malicious actions.

Heuristics 5

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)
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_obj0014_000.js` `bc26972dbf28845ff2a0b15e64912d3350102bbef7b407b50936707c4390c747`	pdf-javascript-stream	PDF /JS object 14 at offset 0x368	33886 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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