PDF malware analysis — malicious · 9a1a65d3659dad56

MALICIOUS

PDF

3.3 KB

MD5: 4153f508fe2b3b1e6a3ed9e52904d2c3 SHA-1: ecf601bc4baa2cec37bada26f1f51cb76d335ebc SHA-256: 9a1a65d3659dad561dc9bef629e158c9f2f9c3c6c37b21b4298758ebc29b4a3c

78 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 Command and Scripting Interpreter: PowerShell T1204.002 Malicious File: Exploitation for Client Execution

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The ClamAV detection 'Heuristics.PDF.ObfuscatedNameObject' further suggests malicious intent. The embedded JavaScript file 'javascript_obj0013_000.js' is the primary artifact, likely responsible for exploiting a vulnerability or delivering a secondary payload.

Heuristics 4

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.
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_obj0013_000.js` `5b015d31c144015440d24f6a213a836e45724c8ec953df3274262853c2306e9f`	pdf-javascript-stream	PDF /JS object 13 at offset 0x318	29208 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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