PDF malware analysis — malicious · d6cd80796c4fa5da

MALICIOUS

PDF

32.3 KB

MD5: b344dacd590fd1f61ee40f61718a7597 SHA-1: 11a9a141fb4f3d21d9ab2d110093624902c8e78a SHA-256: d6cd80796c4fa5daa2d6f89ef7cdb9935f07c97894760fa2f5a5cb6162b20455

186 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution

The PDF file contains embedded JavaScript and RichMedia (Flash) content, strongly indicating an exploit attempt. ClamAV detections confirm this, identifying it as 'Pdf.Exploit.Agent-35955'. The embedded SWF file and JavaScript stream are likely components of the exploit chain, designed to execute malicious code. The primary attack vector appears to be leveraging a PDF vulnerability to deliver and run the embedded Flash content.

Heuristics 7

ClamAV: Pdf.Exploit.Agent-35955 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35955
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
RichMedia (Flash) high PDF_RICHMEDIA

PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
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.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`BuNOJCbQpmVuvq.swf` `c2b666a3ef4c191b77b78c037656e50477b8ba3d35fd61ae843a3a1f4d41c5c1`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x16F1	26774 bytes
Detection ClamAV: Pdf.Exploit.Agent-35955 Obfuscation or payload: likely Carved artifact entropy is 7.99, consistent with packed or encrypted content.
`javascript_obj0006_000.js` `3f55ce090869282ac4403c45adfb74181c7a054f5f3a393997212af93b92a1f6`	pdf-javascript-stream	PDF /JS object 6 at offset 0x13A	4006 bytes

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