PDF malware analysis — malicious · 25c461982a4c45ad

MALICIOUS

PDF

13.8 KB Authoring application: Shocked ttendants stopped being without slowing and thats all his finished

MD5: 7ed03f8c39512816f4dbafd6b0339f91 SHA-1: 997b3d3ae3de3263b13debce138a5f02330554f4 SHA-256: 25c461982a4c45ad93fc58367f02484dbbaa326da674408d11aa1d75ec85d196

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The PDF_UNESCAPE and PDF_FROMCHARCODE firings suggest that the JavaScript is obfuscated, a common technique for hiding malicious code. The extracted artifact 'javascript_obj0018_000.js' is the likely payload. The script's purpose is to download and execute a second-stage payload, which is typical for PDF-based malware delivery. The document body text is largely unreadable garbage, offering no contextual clues.

Heuristics 5

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.
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_obj0018_000.js` `eea6fa9e19baac420fe92964051da10908d442703686e10dcd154320c97ab8e2`	pdf-javascript-stream	PDF /JS object 18 at offset 0x4BA	164157 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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