PDF malware analysis — malicious · 9a19dc5fb311b177

MALICIOUS

PDF

269.4 KB

MD5: c7e785cdf6b6a49070936123edfabe5f SHA-1: 07e0d9418bb6e8bbf03213772873c83d97eedd04 SHA-256: 9a19dc5fb311b177826223fdc086845d65e0cbf3dadccf162b0b49e3117034f2

184 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment T1059.007 Command and Scripting Interpreter: JavaScript

The critical ClamAV detection of 'Pdf.Exploit.Agent-35955' strongly indicates malicious intent. The presence of embedded JavaScript and a RichMedia (Flash) object, identified by heuristics, suggests an exploit is being leveraged. The embedded SWF file is a likely component of the exploit chain, potentially delivering a secondary payload.

Heuristics 6

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

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`WpuVlEGnF.swf` `bf9dea6ff47dfb47c2f51b1fa9a09527dfe5e95399ccb2d043ba956b197360c9`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x3CB7C	52647 bytes
Detection ClamAV: Pdf.Exploit.Agent-35955 Obfuscation or payload: unlikely
`javascript_obj0006_000.js` `adddc6330c1fade3051c55a3e6d184f626d547a717e6ef8569bd3481d61d86ae`	pdf-javascript-stream	PDF /JS object 6 at offset 0x13E	6478 bytes

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