PDF malware analysis — malicious · bd6082a949830a29

MALICIOUS

PDF

32.4 KB

MD5: 3fd84ce945314ade30d038636addfbaa SHA-1: 827d13b848feb005b8eb8181ff224dad81303045 SHA-256: bd6082a949830a29ec1af83445e2edc3ad98b9dd5538ea1fae23a1d8e6015a11

186 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains embedded JavaScript and a RichMedia (Flash) object, identified by ClamAV as Pdf.Exploit.Agent-35955. The embedded JavaScript stream and the Flash object are highly suspicious and likely responsible for exploiting a vulnerability within the PDF reader to execute malicious code. The extracted artifact 'fvwtyBDLQZHuX.swf' is a Flash file, which is often used to deliver exploits or malware.

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
`fvwtyBDLQZHuX.swf` `c2b666a3ef4c191b77b78c037656e50477b8ba3d35fd61ae843a3a1f4d41c5c1`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x178B	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` `3cad7fa62234147c5582a69d7f75db952835cbf6f16a9f434344bf18cded8e2d`	pdf-javascript-stream	PDF /JS object 6 at offset 0x13E	4181 bytes

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