PDF malware analysis — malicious · dbfff28c0f848c0b

MALICIOUS

PDF

19.1 KB

MD5: a7ca3d969e16a21cf19b221a5c48e1fe SHA-1: 09a5cf2f75362440beb6f47cf7fef55a51cb0360 SHA-256: dbfff28c0f848c0bb9771cbede2aeedb597d282deb479a867dd7c3d591a5aceb

80 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. ClamAV also flagged the file as Heuristics.PDF.ObfuscatedNameObject, suggesting malicious intent. The embedded JavaScript file, 'javascript_obj0012_000.js', is the primary artifact of interest. The exact function of the script is unclear due to obfuscation, but its presence within a PDF is highly suspicious and commonly used to download and execute further payloads.

Heuristics 5

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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.
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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_obj0012_000.js` `a6fd6d1e267de738e21bec2a541a60c4265975552d3c52d74d8f62afc0a641da`	pdf-javascript-stream	PDF /JS object 12 at offset 0x30A3	210 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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