PDF malware analysis — malicious · 8dab6030f5bd9aa5

MALICIOUS

PDF

5.1 KB

MD5: 661f8b9e00907600f7f964819ec294a9 SHA-1: 0acf7bc7b3eb665d9b4898ae61a86b765bb07de7 SHA-256: 8dab6030f5bd9aa5f3e2fe9132b4846f89fd15dab8a83e9fc813b5ba89daec8a

66 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, and PDF_EVAL. The JavaScript stream, named 'javascript_obj829713_000.js', appears to be obfuscated and likely attempts to download and execute a second-stage payload. The presence of eval() and String.fromCharCode() suggests dynamic code execution and potential obfuscation techniques. Due to the obfuscation, the exact payload and delivery mechanism cannot be definitively determined, leading to an 'unknown family' classification.

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_obj829713_000.js` `6ae08ec86c8ba4e727cb038364a44bd2e97e7be755bba440661691a18653a465`	pdf-javascript-stream	PDF /JS object 829713 at offset 0x135	8380 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.