PDF malware analysis — malicious · a8efdbfafe5d60c5

MALICIOUS

PDF

5.1 KB

MD5: d08f6357b96a6fb1936da07081d6a4f6 SHA-1: 34381c6fdb1e5cd76897edca730f7838e3c77fd8 SHA-256: a8efdbfafe5d60c566894d619ef81e2522351fd95015b6f56245e9faa6db7daf

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript that utilizes eval() and String.fromCharCode, indicating obfuscation. This script is likely designed to download and execute a second-stage payload. The heuristic firings suggest a malicious JavaScript action within the PDF, and the extracted artifact 'javascript_obj6947_000.js' further supports this. The document body was unreadable, preventing a more specific assessment of the lure.

Heuristics 5

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (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_obj6947_000.js` `54bab55adfe2a5a8c8a777f4977464a495561d395298845015696275e570ce2f`	pdf-javascript-stream	PDF /JS object 6947 at offset 0x134	8363 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.