PDF malware analysis — malicious · d9ae06967bf2cfac

MALICIOUS

PDF

2.5 KB

MD5: d3ca0d79dd448417d537fe9a75ace808 SHA-1: 8ac1db1dfce5e75b5b7ca668b87a682e8d2c4655 SHA-256: d9ae06967bf2cfac20120682f56ff465fe19b5dc39d6ec5025e8a9ddc9dd3288

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains obfuscated JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT', 'PDF_JS', and 'PDF_UNESCAPE'. ClamAV also flagged it as 'Heuristics.PDF.ObfuscatedNameObject'. The embedded JavaScript file, 'javascript_obj0006_000.js', is likely responsible for executing the malicious payload. The exact nature of the payload could not be determined due to obfuscation, but the presence of JavaScript in a PDF commonly leads to further stages of infection.

Heuristics 5

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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_obj0006_000.js` `0d2210e49ad9c142508dbebd5086f1ff69abe8a631f43132f489ab2842f061fe`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1A6	1403 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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