PDF malware analysis — malicious · a1b20d7ed3eef34b

MALICIOUS

PDF

10.3 KB

MD5: d3c8dab6a2a15d030f38644346317c2b SHA-1: ce47e97fd8dc687cfc8c361c6fec045960292362 SHA-256: a1b20d7ed3eef34b6b7c07b9bb7c42d8d9dfba1ec04beca5e3fd24e80e57aedb

246 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file contains embedded JavaScript that utilizes a launch action to execute cmd.exe. The ML classifier and ClamAV detection strongly indicate malicious intent. The primary goal appears to be the execution of a secondary payload via the command interpreter, as evidenced by the PDF_LAUNCH_COMMAND heuristic.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

Launch action critical PDF_LAUNCH

PDF contains a /Launch action whose target is an executable, URL, or UNC path — can start an external application
/Launch action target: cmd.exe critical PDF_LAUNCH_COMMAND

PDF /Launch action specifies an executable target — references a known-dangerous executable (cmd, PowerShell, etc.).
ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
Suspicious extracted artifact medium 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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0006_000.js` `c8971c8093e845b7efb86e73b5b86b27ae81722893d3af14a3cfc3d2d4b889c6`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1A2	141 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s).

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